ROOIBOS & Other Herbal
Tisanes
1. All tea comes from one tea plant, “Camellia Sinensis.”
2. The plant dates back to the Tertiary Period, preceding the
ice age. The plant was able to survive because the Yunan and Guizhou
plateaus were not affected by the glaciations.
Meditation:
As you know we have been including a small meditation before
we begin our classes each week, and lately with Yolanda as our
guide. I feel for those individuals who are reading this without
having the benefit of being with us, I ask you to connect your
tongue to the roof of your mouth and just breathe for a minute,
correctly thru your abdomen and allow purity of thought to enter
your being for a moment or two.
Do We Realize the Blessings in our Lives?
“ for those of you who may have had a bad day, a hectic
day, a stressful day, and even a perfect day….let me read
you a few startling facts which will put everything in perspective
and help us take a deep breath and open ourselves to the fascinating
and important information we’re going to hear and talk about
tonight!!’
If we could shrink the earth's population to a village of precisely
100
people, with all the existing human ratios remaining the same,
it would look something like the following.
There would be:
1. 57 Asians
2. 21 Europeans (14 from the Western Hemisphere)
3. 8 Africans
4. 52 would be female
5. 48 would be male
6. 70 would be different colors
7. 30 would be white
8. 70 would be non-Christian
9. 30 would be Christian
10. Six would possess 59 percent of the entire world's wealth
and all six would be from the United States of America
11. 80 would live in substandard housing
12. 70 would be unable to read
13. 50 would suffer from malnutrition
14. 1 would be near death
15. 1 would be near birth
16. One - yes, only one - would have a tertiary education and
only one would own a computer.
When one considers our world from such a small compressed perspective,
the need for acceptance, understanding and education becomes glaringly
apparent.
The following is also something to ponder:
1. If you woke up this morning with more health than illness,
you are more blessed than the million who will not survive this
week.
2. If you have never experienced the danger of battle, the loneliness
of imprisonment, the agony of torture, or the pangs of starvation,
you are ahead of 500-million people in the world.
3. If you can attend a meeting of worshippers without fear of
harassment, arrest, torture, or death, you are more blessed than
three billion people in the world.
4. If you have food in the refrigerator, clothes on your back,
a roof over your head and a place to sleep, you are richer than
75 percent of this world.
5. If you have money in the bank, in your wallet, and spare change
in a dish somewhere, you are among the top eight percent of the
world's wealthy.
Rooibos
1. Rooibos in Afrikaans means red bush. It is interesting to note
that Rooibos when grown is in fact green and only turns red during
the slight fermentation process it goes thru as we will explore
below.
2. Rooibos is pronounced many ways. The accepted way today is
to pronounce it as Roibos.
3. The scientific name of Rooibos is Aspalathus linearis. Rooibos
is a member of the legume family of plants and is used to make
a tisane or herbal tea.
4. What is it a TISANE? Tisane is an herbal drink. It is any
herbal infusion not made from the leaves of the tea bush (Camellia
sinensis). We know the four varieties of "real" tea
includes; black, oolong, green, yellow, and white tea. Tisanes
can be made with fresh or dried flowers, leaves, seeds or roots,
generally by pouring boiling water over the plant parts and letting
them steep for a few minutes. Seeds and roots can also be boiled
on a stove.
5. Rooibos has been growing naturally in South Africa in an area
called the Cederberg Mountains for centuries. Cederberg is an
area just north of Capetown with vast vistas and fields of verdant
green bushes that fill today’s landscape.
6. In South Africa it is more usual to drink Rooibos with milk
and sugar, but elsewhere it is usually served without.
7. The flavor of Rooibos tea is often described as being sweet
even though no sugar is added with a slight nutty aftertaste.
The resulting Rooibos liquor is a reddish brown color, perhaps
explaining why Rooibos is sometimes referred to as red tea.
History of Rooibos & South Africa
1. The first known inhabitants of the Western Cape area arrived
around 100,000 BC. These people were Stone Age hunter-gatherers
who used stone tools and fire. They survived the Ice Age, when
water levels were around 120 meters lower than their current levels
and the Cape — and in particular the Cape Flats was covered
in forests due to increased humidity. Fossils from around 8000
BC indicate that by that period the inhabitants of the region
had developed bows and arrows which they used to hunt. Nearly
6000 years later, a large migration of tribes further inland brought
the inhabitants of the Cape into contact with skilled agriculturalists,
prompting them to grow crops.
2. The first Europeans, under the command of Bartholomeu Dias,
discovered the Cape in 1486. The next recorded sighting of the
Cape was by Vasco da Gama in 1497 while he was searching for a
route that would lead directly from Europe to Asia.
3. Table Mountain was given its name in 1503 by Antonio da Saldanha,
a Portuguese admiral and explorer. He called it Taboa da caba
("table of the cape"). The original name given to the
mountain by the first Khoi inhabitants was Hoeri 'kwaggo ("sea
mountain").
4. In March 1647, with the shipwreck of the Dutch ship Nieuwe
Haarlem, began the Dutch settlement in South Africa at and around
what is now Cape Town. They stayed for one year at the Cape and
were finally rescued by a fleet of 12 ships under the command
of W.G. de Jong, on one of these ships was also Jan van Riebeeck.
5. After their return in Holland a part of the shipwrecked crew
tried to persuade the Dutch East India Company to open a trading
center at the Cape.
6. In 1652, a Dutch expedition of 90 Calvinist settlers, under
the command of Jan Van Riebeeck, founded the first permanent settlement
near the Cape of Good Hope. They arrived, on 6 April 1652, on
board of five ships, the Reijer, the Oliphant, the Goede Hoop,
the Walvisch end the Dromedaris in the bay of today's Cape Town.
7. These Dutch settlers to the Cape adopted Rooibos as an alternative
to their black tea which was a very expensive commodity for the
settlers who relied on supply ships from Europe. Until the 19th
century, however, Dutch usage of the tea was minimal.
8. Simon van der Stel, after whom the town of Stellenbosch is
named, arrived in 1679 to replace Van Riebeeck as governor. Van
der Stel founded the Cape wine industry by bringing grape vines
with him on his ship, an industry which would quickly grow to
be important for the region. He also promoted territorial expansion
in the Colony.
9. The first non-Dutch immigrants to the Cape, the Huguenots,
arrived in 1688. The Huguenots had fled from anti-Protestant persecution
in Catholic France to the Netherlands, where the VOC (Dutch East
India Company) offered them free passage to the Cape as well as
farmland. The Huguenots brought important experience in wine production
to the Cape, greatly bolstering the industry, as well as providing
stong cultural roots.
10. Rooibos was first reported in a written document in 1772
by botanist Carl Humberg.
11. By 1754, the population of the settlement on the Cape had
reached 5,510 Europeans and 6,729 slaves (anyone who was not of
Dutch ancestry)
12. The British successfully invaded the Cape in the Battle of
Muizenberg, August 7th. 1795.
13. The Cape was permanently taken from the Dutch by the British
in return for a large sum of money. In this period, the British
saw the control of the Cape as key to their ability to maintain
their command in India. English became the language of the Cape.
This was Britain's second colony, after Sierra Leone. Ownership
of this territory proved crucialduring the First and Second world
Wars, when mastery of the Cape had significant strategic importance
to the Allied war effort. In addition the Cape became the springboard
for British colonial expansion into Africa. Certainly current-day
Botswana, Lesotho, Swaziland, Zimbabwe, Zambia and Malawi all
owe their current form to the battle.
14. The Dutch agreed with the condition that they be allowed
to continue to use the Cape for repairs and refreshment.
15. Rooibos was first used by the Khoisan people indigenous to
the Cederberg mountain area of South Africa. These Bushmen and
their descendents had been using Rooibos for centuries as a medicinalbeverage.
Similar in nature to how tea was first used by the Chinese for
centuries as a medicinal beverage.
16. In 1814, the British purchased the Cape Colony from the
Dutch, and English became the official language a few years later,
helping to spread knowledge of South Africa to England and America.
17. In King's American Dispensatory of 1898, under the heading
of tea, honeybush is already listed as a substitute, with reference
to a report from 1881 indicating use of honeybush as a tea in
the Cape Colony of South Africa. The Khoisan of the South African
Cape were also using the tea for treatment of coughs and other
upper respiratory symptoms associated with infections.
18. In 1904, Benjamin Ginsberg was a Russian settler to the Cape.
Ginsberg born in England married a Russian girl and moved to Russia
where he learned the Tea business from his new family who were
from a famous tea family in Russia. He returned to England with
his family seeking to do something in the Tea business. By that
time Tea in England was very popular and many establishments had
already been realized. Having heard one day about this new colony
in South Africa who was prospering with the new gold discoveries
and the use of a new tea substitute he took a boat to Capetown.
Once arrived he was stunned to hear about daily use of a tea substitute
in this English Colony. They also used the Rooibos as and for
medicinal benefits which reminded Ginsberg of the origins of Tea
in China and he set about to seek more knowledge about the new
drink.
19. Ginsberg contacted the local Khoisan people who were then
the only ones harvesting the Rooibos plant. They were poor and
he was able to organize them to harvest and prepare the drink
for daily consumption.
20. He sold his "Mountain Tea" as it was called, to
settlers in the Cape who were seeking a cheaper substitute for
tea with medicinal properties, or can we say; “proper-teas?”
21. In the 1930s, Ginsberg was seeking to increase his production
of Rooibos. He spoke to and eventually convinced a local doctor
to experiment with cultivation of the plant. The attempts were
successful, which led Ginsberg to encourage local farmers to cultivate
the plant in the hope that it would become a profitable venture.
The first attempts at large volume cultivation was a disaster
due to the seeds being too small for cultivation. The seeds from
the doctor were no larger than a grain of sand and so were difficult
to find and gather. This resulted in the seeds soaring to an astounding
£80 a pound, which was obviously far too expensive for local
farmers to afford.
22. Fortunately for Ginsberg he employed a number of his own
employees to collect the seeds. One woman whose name is now lost
in the hills of Cederberg had found a rather unusual source of
supply. While other collectors only brought in matchbox-sized
quantities of the seed, she continually delivered large bags of
the seeds and was eventually persuaded to share her secret. She
chanced upon ants dragging seed one day, while she was searching
for the minute seeds. She followed their trail back to their nest
and, on breaking it open, found a granary where Up to 25,000 seeds
(450g) have been found in a single nest.
23. The demand for Rooibos increased dramatically during World
War II as a result of buying and shipping real Camellia Sinensis
tea from Asia was very difficult.
24. In 1968, Rooibos popularity took a turn for the positive when
South African mother Annique Theron fortuitously stumbled across
Rooibos teas' ability to calm her baby, relieving the infant’s
colic and insomnia. Gratified by Rooibos' natural healing potential,
Annique went on to investigate and document Rooibos' health-promoting
properties. In 1970, Annique published her findings a book titled
"Allergies: An Amazing Discovery."
Producing Red & Green Rooibos
1. Rooibos like most teas goes through a fermentation process.
The unfermented Rooibos is what we call Green Rooibos.
2. Rooibos is harvested while it is mostly green. Actually if
Rooibos was not harvested and fermented it would stay green. The
Rooibos is actually cut out in the fields, similar in fashion
to wheat, and is taken to the factory. When Rooibos is cultivated
commercially, the needle-like leaves and stems are usually harvested
in the summer, which corresponds to the months of January through
March in South Africa.
3. The plants are cut to about 30 cm (1 foot) from the ground
at harvest time and begin another major growth cycle the following
spring for harvest.
4. The Rooibos is then taken to the factory where it is inspected
and then goes thru a cleaning process similar in nature to tea
(Camellia Sinensis).
5. The Rooibos is now ready to be finely chopped. Then just like
Oolong and Black tea the chopped Rooibos is then bruised (by machinery)
and left to ferment in heaps at the plantation.
6. The bruised Rooibos fermenting in the very hot African sun,
actually then changes from a vivid green to a deep mahogany red.
It is this unique color of the Rooibos which gives Rooibos the
color which the Rooibos tisane is known and adored all around
the world.
7. The unfermented type, often called green rooibos, contains
higher levels of polyphenol antioxidants because fermented rooibos
loses some antioxidants during the fermentation process. The unfermented
type was developed to maximize antioxidant levels in response
to recent interest in the health benefits associated with the
antioxidants found in Camellia Sinensis teas. Unfermented rooibos
tea is a tan/yellow color rather than the rich reddish color of
fermented rooibos.
8. The Rooibos is then graded according to color, flavor, and
cut length, with the highest grade labeled as "supergrade."
9. The tea has a smooth, non-bitter flavor that is pleasant hot
or chilled.
10. The unfermented variety “Green Rooibos” has a
very mild "green" taste reminiscent of green tea but
without the astringency; the fermented type is quite different,
with a stronger sweet and fruity taste.
11. The mild flavor of Rooibos has made it popular in multi-ingredient
herbal tea blends and we at the Tea Garden use it as our Herbal
Tisane base in BLENDING SOME OF THE Worlds finest Tisanes.
Health Benefits of Rooibos
What is the Best Tea for Pregnant Women?
a. In South Africa, the drink of choice for the expectant mothers
is Rooibos tea. This caffeine-free herbal infusion has been shown
to soothe the body's reaction to allergy and rashes.
b. At an herbal store, you'll probably find Rooibos under the
name "Herbal Allergy tea" due to this natural allergy-fighting
quality.
c. Recent studies have shown that Rooibos tea may also have a
significant amount of antioxidants (health-inducing compounds),
comparable to those found in green tea as we will discuss below.
d. Relief from the aches and pains associated with pregnancy is
another way in which herbal teas may aid expecting mothers. The
first instinct may be for Chamomile, since it is famous for its
relaxing effects. However, this is a member of the Ragweed family,
so may potentially cause the child to have an allergic reaction.
e. Instead, the taking of an herbal mint tea such as Peppermint
which has been used for millennia, dating back to the Greeks,
as a caffeine-free home remedy that promotes relaxation for moms-to-be.
In addition, it has been shown to sooth the stomach, especially
useful for those that are prone to morning sickness.
f. One of worlds most useful herbs found for pregnant women is
called Raspberry Leaf. Women of the Cherokee nation traditionally
drank Raspberry Leaf tea, now used all over the world. Raspberry
Leaf helps to prepare the womb for birth by relaxing and strengthening
the uterus, and also helps nausea, and supports general gastrointestinal
health. The Japanese women also believe Rooibos to aid the development
of the womb and consume much Rooibos thru ought pregnancy.
Rooibos vs Green Tea
Even more alluring, unconfirmed studies are showing that these
flavonoids may be up to 50 times more effective than those found
in Green tea.
The following information was taken from an article on the website
regarding the health benefits of Rooibos tea.
Antioxidants in Rooibos
Free radicals (unstable molecules that have lost an electron)
can damage the DNA in cells, leading to cancer, and they can oxidize
cholesterol, leading to clogged blood vessels, heart attack, and
stroke. Antioxidants can bind to free radicals before the free
radicals cause harm. Some antioxidants are called polyphenols
because these substances contain a phenolic ring in their chemical
structure. Polyphenols are common in plants; they act as pigments
and sunscreens, as insect attractants and repellants, and as antimicrobials
and antioxidants.
12,13 The polyphenol group is further divided into subgroups
such as flavonoids and phenolic acids. Polyphenols can also be
classified as monomeric (molecules containing a single unit) or
polymeric (larger molecules containing more than one unit). As
described in this section, laboratory studies have found that
rooibos tea contains polyphenol antioxidants, including flavonoids
and phenolic acids that are potent free radical scavengers.
Flavonoids: The polyphenol antioxidants identified
in rooibos tea include the monomeric flavonoids aspalathin, nothofagin,
quercetin, rutin, isoquercitrin, orientin, isoorientin, luteolin,
vitexin, isovitexin, and chrysoeriol.
Currently, rooibos is the only known natural source of aspalathin.
Nothofagin is similar in structure to aspalathin and has only
been identified in one other natural source besides rooibos: the
heartwood of the red beech tree (Nothofagus fusca (Hook F.) Oerst,
Nothofagaceae), which is native to New Zealand.
A recent analysis of fermented rooibos measured the levels of
all the flavonoids listed above except nothofagin. Of the 10 flavonoids
measured, the three that occurred in largest amounts were aspalathin,
rutin, and orientin, followed by isoorientin and isoquercitrin.
Nothofagin was identified by mass spectrometry but was not quantified
because a standard was not available. The amount of nothofagin
in fermented and unfermented rooibos was estimated to be about
three times less than aspalathin in one study.
Aspalathin and nothofagin arepresent in relatively large amounts
in unfermented rooibos tea, but some of the aspalathin and nothofagin
oxidizes to other substancesduring fermentation; thus, fermented
rooibos contains less aspalathin and nothofagin than unfermented
rooibos.20 The change in polyphenol composition is the reason
the tea changes color with fermentation.
Phenolic Acids: In addition to flavonoid antioxidants,
rooibos also contains phenolic acids that have been shown to have
antioxidant activity. Like flavonoids, phenolic acids are polyphenol
substances that are found in fruits, vegetables, and whole grains.
The phenolic acids identified in rooibos tea, in decreasing order
of antioxidant activity as measured in one study with the commonly
used 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging assay,
include caffeic acid, protocatechuic acid, syringic acid, ferulic
acid, vanillic acid, p-hydroxybenzoic acid, and p-coumaric acid.
Using the DPPH assay, caffeic acid was just as active an antioxidant
as the most potent flavonoids tested (quercetin, isoquercitrin,
and aspalathin).
Total Polyphenol Content: Despite some promotional
claims, a serving of rooibos tea has less total polyphenols than
the same size serving of green or black tea. Serving size varies,
but for comparison purposes a 150 to 200 ml serving is often used
(about 3/4 of a standard baking measuring cup). Elizabeth Joubert,
Ph.D., specialist researcher at South Africa’s ARC Infruitec-Nietvoorbij
and a rooibos expert, says that the total polyphenol content of
an average 150 to 200 ml serving of rooibos tea can be as much
as 60 to 80 mg, depending on factors such as the brewing time
and amount of leaves used. For comparison, one study found that
brewing black tea leaves for 1 to 3 minutes at a concentration
of 1 g leaves per 100 ml water resulted in black tea that contains
128 to 199 mg of polyphenols per 200 ml serving of tea.23 The
types of polyphenols in rooibos tea are different than those in
green and black teas, so the potential health benefits of the
teas cannot be compared solely on their total polyphenol content.
Rooibos tea does not contain epigallocatechin gallate (EGCG),
which is a polyphenol in green tea that has shown anti carcinogenic
and antioxidant capabilities, but many of the polyphenols in rooibos
tea are also strong antioxidants.
Quercetin and Luteolin: Two of the flavonoids in rooibos
tea, quercetin and luteolin, are potent antioxidants found in
many fruits and vegetables. Studies in vitro (in the test tube)
have shown that these antioxidants can cause cancer cells to "commit
suicide," referred to as apoptosis.24-27 Quercetin decreased
primary tumor growth and prevented metastasis in a model of pancreatic
cancer.25 Luteolin and quercetin inhibited proliferation of thyroid28
and colon29 cancer cells, respectively, in vitro. Quercetin inhibited
cyclooxygenase-2 (COX-2) expression in colon cancer cells, which
may help prevent colon cancer.30,31 Both luteolin and quercetin
can block the formation of lipid peroxides.
Although studies like these show quercetin and luteolin are
strong antioxidants, researchers haven’t yet determined
whether enough of either of these two flavonoids are present in
rooibos tea and absorbed by the body to have beneficial effects.
As shown in Table 1, recent analysis of fermented rooibos found
considerably more quercetin than luteolin,19 but even quercetin
was present in much lower amounts than aspalathin, orientin, and
rutin.
Based on the data in Table 1, a 150 ml serving of fermented
rooibos tea made with 2.5 g of tea leaves has about 0.27 mg of
quercetin; for comparison, one study found that C. sinensis contains
1.5 to 3.75 mg of quercetin per 150 ml serving of tea.35 A previous
study36 found 1.5 mg of quercetin per 150 ml serving of fermented
rooibos, but that may be an upper limit. Joubert says that the
1.5 mg estimate is probably high,22 but emphasizes that these
estimates will vary with parameters such as the brewing time and
the amount of water and tea leaves used. At any rate, the amount
of quercetin per serving of rooibos is a small percentage of the
total polyphenol content per serving of rooibos.
Aspalathin and Nothofagin: A unique polyphenol that
is one of the most abundant monomeric flavonoids in rooibos tea,19,20
aspalathin seems to contribute to the antioxidant capabilities
of rooibos, but aspalathin is not as well studied as quercetin
and luteolin. Nothofagin is similar in structure to aspalathin
and may have similar antioxidant capabilities.
Joubert says that chief research technologist Petra Snijman of
the Program on Mycotoxins and Experimental Carcinogenesis (PROMEC)
at the Medical Research Council of South Africa recently developed
a way to isolate pure aspalathin and nothofagin from rooibos.
Joubert says, "According to unpublished in vitro studies
done at ARC Infruitec-Nietvoorbij, aspalathin compared well with
quercetin in terms of antioxidant activity, except in a fat medium
where quercetin demonstrated much higher potency than aspalathin.
What is important in these comparative studies is the test environment.
Relative efficacy will depend on the test system used (the polarity
of the medium, the type of free radical that needs to be scavenged,
etc.)."
Joubert co-authored a study that found aspalathin compared well
to other antioxidants with the DPPH radical scavenging assay.
The study measured the antioxidant capability of many of the flavonoids
and phenolic acids found in rooibos tea and compared them to several
reference standards such as alpha-tocopherol (vitamin E). The
percent inhibition of the DPPH radical by quercetin, isoquercitrin,
aspalathin, rutin, luteolin, and alpha-tocopherol was 98.27, 91.99,
91.74, 91.18, 90.85, and 75.10, respectively (using a 0.25 mole
ratio of antioxidant to DPPH). All of the flavonoids tested showed
potent hydrogen donating abilities with DPPH except for vitexin,
which only had a 7.26 percent inhibition even at a 0.5 mole ratio
to DPPH.
According to the data in Table 1, a 150 ml serving of fermented
rooibos made with 2.5 g of tea leaves has about 3 mg of aspalathin;
since the amount of nothofagin was measured to be three times
less than aspalathin in one study, a 150 ml serving of fermented
rooibos has on the order of 1 mg of nothofagin. A serving of unfermented
rooibos has considerably more aspalathin and nothofagin than an
equal serving of fermented rooibos because a portion of these
flavonoids oxidizes to other substances during fermentation,
Orientin and Rutin: Orientin and rutin are two of the
other most abundant monomeric flavonoids in rooibos, and both
have been associated with health benefits. Orientin is a potent
free radical scavenger. It reduced by half the number of cancer-associated
changes in cells of human blood exposed to radiation. When mice
were exposed to radiation, orientin protected against lipid peroxidation
in the liver and also reduced damage to the bone marrow and gastrointestinal
tract. Rutin, a flavonoid found in buckwheat (Fagopyrum esculentum
Moench, Polygonaceae) and some fruits and vegetables, seems to
help maintain the strength of capillary walls; oral rutin as well
as oral and topical o-(beta-Hydroxylethyl)-rutoside (HR) have
been used to treat hemorrhoids, varicose veins, and the lower
leg edema associated with venous insufficiency and venous hypertension.41-46
According to the data in Table 1, a 150 ml serving of fermented
rooibos tea made with 2.5 g of tea leaves has about 2.5 mg of
orientin and 3.2 mg of rutin.
Total Antioxidant Capability: Although the 10 flavonoids
in Table 1 are important because they are known to have antioxidant
properties, they only represent a small percentage of the total
polyphenol content of a serving of fermented rooibos tea. A 150
to 200 ml serving of rooibos can have up to 60 to 80 mg of total
polyphenols,22 and Table 1 shows that a 150 ml serving of fermented
rooibos made with 2.5 g of leaves has about 14 mg of the 10 flavonoids
in the table. Many other polyphenols are present, but they have
not all been identified or quantified.
To assess the antioxidant capability of rooibos tea as a whole,
researchers compared the antioxidant activity of rooibos tea extracts
to that of green and black tea extracts with the DPPH radical
scavenging assay as well as the beta-carotene bleaching method.
All the teas showed strong antioxidant activity with both methods.
Using the DPPH method, the ranking from highest to lowest antioxidant
activity was green tea (90.8 percent inhibition), unfermented
rooibos (86.6 percent), fermented rooibos (83.4 percent), and
black tea (81.7 percent). Green tea was significantly higher than
the others (P < 0.05), but the other three teas did not differ
from each other significantly with respect to DPPH inhibition.
Using the beta-carotene bleaching method, the ranking was green
tea, black tea, fermented rooibos, and unfermented rooibos. The
relative ranking varies with the type of test because the substance
to be tested will have different reactivity to the different oxidizing
agents used. These tests only measure the antioxidant capability
of substances outside of the body and don’t provide data
on whether the antioxidants are absorbed by the body and effective
after the food is consumed.
In this study, all the tea extracts were diluted to the same
amount of soluble solids rather than to the amounts of solids
found in the teas. This method allows a comparison of antioxidant
capability on a mass equivalent basis, but does not reflect a
comparison of the antioxidant strength of equal volume servings
of the teas. Although the soluble solid content varies with the
method of tea preparation, it usually decreases in the order green
tea, black tea, unfermented rooibos, and fermented rooibos. The
percent of soluble solids represented by polyphenols is similar
for the four teas and the DPPH antioxidant activity is similar
on a mass equivalent basis, so the DPPH antioxidant capability
of equal-sized servings will decrease in the order of the soluble
solid content.47 Black and green teas have over twice as much
soluble solids as rooibos tea when prepared conventionally, so
over two 200 ml servings of rooibos tea would need to be consumed
to receive the same antioxidant benefit (as measured by DPPH)
as one 200 ml serving of black or green tea (or the rooibos would
need to be brewed to twice the standard concentration).47 This
result agrees with the data given previously for 60 to 80 mg polyphenols
for a 150 to 200 ml serving of rooibos tea as compared to 128
to 199 mg polyphenols for a 200 ml serving of black tea.
The studies referenced above show that rooibos tea contains
antioxidants that have positive effects when tested as isolated
substances and that the tea as a whole has good antioxidant activity
in vitro. So, do all these antioxidants in rooibos tea lead to
health benefits for tea drinkers?
Rooibos Research in Live Animals and Animal Cells
Laboratory studies have demonstrated potential health benefits
of rooibos in vitro (in test tubes) and in vivo (in live animals),
but human studies have not been conducted. Much more research
is needed, but the studies so far look intriguing.
Fermented Rooibos against Mutagens: Researchers found that fermented
rooibos tea reduced cancer-associated changes in animal cells
induced by the mutagens benzo[a]pyrene (B(a)P) and mitomycin C
(MMC) both in vitro and in vivo. The in vitro part of the study
measured chromosomal aberrations in animal cells caused by exposure
to the mutagens. The cells were treated with tea extract either
at the same time as the mutagen or after the mutagen. Some of
the tests used rat liver microsomal enzyme, called S9, to provide
metabolic activation of the mutagen; B(a)P requires metabolic
activation, but MMC can act with or without it.
Both green tea and rooibos tea suppressed aberrant cells caused
by B(a)P and MMC in the presence of S9, but rooibos showed a greater
suppression of aberrant cells than did green tea (see Table 2).
In fact, when the cells were exposed to B(a)P and S9 simultaneously
with rooibos tea, the highest concentration of rooibos tea (1000
microgram/ml) completely inhibited the aberrant cells, bringing
their percentage down to the level of the controls that were not
exposed to any mutagen. Also, rooibos tea suppressed aberrant
cells caused by MMC both with and without the presence of S9,
but green tea showed no suppression without S9. Treating the cells
simultaneously with the mutagen and tea extract caused a greater
protective effect than treating the cells with tea extract following
exposure to the mutagen.
In the in vivo part of this study, mice were given oral doses
of tea and an injection of B (a)P or MMC. The researchers measured
the frequency of micronucleated reticulocytes (MNRETs), which
are cells with damaged DNA that may lead to cancer. In one experiment,
a single oral dose of tea (1 ml of 0.2 percent green tea or 0.1
percent rooibos tea) was given 6 hours prior to an injection of
MMC and the number of MNRETs was counted at 24, 48, and 72 hours
after the MMC. Rooibos tea and green tea provided similar inhibition
of the frequency of MNRETs. After 48 hours, rooibos tea reduced
the level of MNRETs by about 34 percent, and green tea reduced
the level by about 38 percent. When the mice received the single
dose of tea either after the mutagen or 24 hours prior to the
mutagen, neither green tea nor rooibos tea reduced the frequency
of MNRETs.
When the teas were given as one oral dose daily for 28 days and
then the mutagen was injected on day 29, both rooibos tea and
green tea reduced the frequency of MNRETs caused by B(a)P. Daily
doses of 0.2 percent green tea reduced MNRETs by about 62 percent
48 hours after B(a)P exposure, and daily doses of 0.1 percent
rooibos tea reduced MNRETs by about 49 percent. Daily doses of
0.1 percent rooibos tea reduced MNRETs by about 34 percent 48
hours after MMC exposure, but daily doses of green tea did not
provide a significant reduction with MMC.
Fermented Rooibos against Irradiation: Another research group
found that extract of fermented rooibos tea reduced cancerous
transformation of mouse cells exposed to x-rays in vitro.49 The
amount of protection correlated with the dose of rooibos, and
an extract concentration of 10 percent reduced the cell transformations
to a level similar to the spontaneous level of the controls. Interestingly,
green tea in equivalent concentrations did not show any detectable
protective effect. In another study, fermented rooibos tea reduced
cell damage in live mice that were exposed to irradiation two
hours following a single dose of rooibos administered by gastric
intubation.
Fermented Rooibos against Brain Lipid Peroxidation: Rats given
fermented rooibos tea daily ad libitum (free access) from the
age of 3 months to 24 months had greatly reduced age-related lipid
peroxide accumulation in four areas of their brains compared to
rats that drank plain water.50 Increases in lipid peroxides in
the brain may damage neuronal cells and contribute to age-related
diseases.50 The lipid peroxide levels were evaluated by measuring
the amounts of thiobarbituric acid reactive substances (TBARS)
in eight regions of the brain. The 24-month-old rats that had
been drinking plain water had significantly higher TBARS in the
frontal cortex, occipital cortex, hippocampus, and cerebellum
compared to 5-week-old rats, but the 24-month-old rats that had
been drinking rooibos tea had no increase in TBARS in those four
areas of the brain. The TBARS of the 24-month-old rooibos group
were similar to the TBARS of the young 5-week-old group (see Table
4).The authors give a bar chart that summarizes the TBARS data
for each area of the brain.50 The TBARS values in nmol/g for 24-month-old
rats without rooibos tea, 24-month-old rats given rooibos tea,
and 5-week-old rats, respectively, were approximately 120, 80,
80 in the frontal cortex; 115, 70, 80 in the occipital cortex;
80, 40, 50 in the hippocampus; and 115, 80, 85 in the cerebellum.
The authors say these results suggest that the administration
of rooibos tea protected several regions of the rat brain against
lipid peroxidation accompanying aging. Magnetic resonance images
taken of the brain were consistent with the TBARS data.
Fermented vs. Unfermented Rooibos: Another study found that
both fermented and unfermented rooibos tea exhibits antimutagenic
properties in vitro as measured by the Salmonella typhimurium
mutagenicity assay with several different mutagens; the antimutagenic
activity was stronger against the metabolically activated mutagens
2-acetylaminofluorene (2-AAF) and aflatoxin B1 (AFB1) than it
was against three direct-acting mutagens.51 Further research showed
that the fermentation process causes a decrease in the antimutagenic
and antioxidant activity of rooibos tea as measured by the Salmonella
typhimurium mutagenicity assay (with 2-AAF), the hydrogen donating
ability (assessed with DPPH), and the superoxide anion radical
scavenging assay. The researchers suggest that fermented rooibos
may show less antioxidant and antimutagenic activity because it
has less polyphenols than unfermented rooibos. One analysis showed
that polyphenols represent about 41 percent of the total solid
matter in unfermented rooibos tea extract, but only about 30 percent
of the total solid matter in fermented rooibos tea extract.
One of the authors of both these studies is senior research
scientist Jeanine Marnewick of the Program on Mycotoxins and Experimental
Carcinogenesis (PROMEC) at the Medical Research Council of South
Africa. She says, "Rooibos showed protective effects against
DNA damage when tested in an in vitro assay as well as in an in
vivo animal system." The in vitro studies found unfermented
rooibos was generally more protective against DNA damage than
fermented rooibos. But Marnewick says her group’s research
shows that fermented rooibos has a stronger effect against some
mutagens. She says, "Both the fermented and unfermented rooibos
showed a significant protection, and we’re busy elucidating
the mechanisms." She is currently evaluating the protective
effect of rooibos on liver, esophageal, colon, and skin cancer
induced in live animal models. The studies are in the early phases
and she cautions, "Very little is known about the effect
of rooibos on cancer development."
Joubert also adds a cautionary note, saying that many questions
about rooibos still need to be answered. She says that researchers
need to determine which of the antioxidant substances in rooibos
tea are absorbed by the body and how much tea is needed to produce
a measurable benefit. She also emphasizes that no human studies
have been conducted yet.
Whole Foods vs. Isolated Antioxidants: The full benefits
of teas are likely to come from a combination of all the antioxidants
in them rather than from just one substance. Quite a few studies
have found that isolated antioxidants don’t have as positive
an anticancer effect as the mixture of antioxidants found in natural
food sources; whole apple extracts were better than pure quercetin
at inhibiting the growth of cancer cells in vitro, tomato powder
was better than pure lycopene at extending the life of rats with
prostrate tumors, and freeze-dried strawberries exhibited better
anticancer properties in animals than did pure ellagic acid. Also,
white and green tea extracts demonstrated better antimutagenic
properties in vitro than mixtures of nine polyphenols found in
the teas (mixed according to their relative proportions in the
teas). Researchers believe these results indicate that other substances
in the whole food products besides the identified antioxidants
probably contribute to the total anticancer effect of the food,
and that the relative amounts of all these substances could be
important. Different teas have different mixtures of antioxidants,
and they will protect against different mutagens. Sorting out
all of these interactions will take time.
Rooibos Folklore: What’s proven?
Although rooibos does contain active antioxidants, many of the
other health claims made for rooibos tea are not well documented
(based only on anecdotal evidence) or are not supported by science.
Researchers are still investigating many of these claims to evaluate
all the potential benefits of rooibos.
Vitamins and Minerals: Despite some promotional claims
that rooibos is a source of vitamin C, Joubert says it is not.
"We have tested both the traditional rooibos and green rooibos,
and vitamin C was not present," she says.
With the exceptions of fluoride and copper, the trace amounts
of minerals in rooibos are not enough to make the tea a meaningful
dietary source of minerals for the average consumer. As shown
in Table 5, the nutritional labeling that is given on some packages
of rooibos tea and on some websites of distributors indicates
that the amounts of iron, potassium, zinc, calcium, and magnesium
in a 200 ml serving of rooibos tea are all less than 1 percent
of the U.S. reference daily intake (RDI). A 200 ml serving of
rooibos provides over 5 percent of the RDI of fluoride for adults
and over 7 percent of the RDI for copper (see Table 5). Marc S.
Micozzi, M.D., Ph.D., director of the Policy Institute for Integrative
Medicine in Bethesda, Maryland, notes that when rooibos is used
as a fluid replacement throughout the day, as is done with some
athletes in South Africa, it does provide measurable amounts of
several minerals and electrolytes.
Colic, Allergies, And Other Ailments: Distributors
of rooibos tea often suggest it can help allergies, sleep problems,
digestive problems, headache, and other ailments,but these claims
have not been verified by scientific research. If the indigenous
people of the Cedarberg region used rooibos tea medicinally, that
tradition was lost and rooibos was just enjoyed as a good-tasting
beverage until the recent interest in its health benefits. Many
of the health claims for rooibos tea began in 1968 when a South
African woman, Annekie Theron, found that rooibos tea eased her
infant’s colic.10 As the story goes, she found no documentation
on the benefits of rooibos and began her own experiments with
local babies who had colic and allergies. She concluded that rooibos
helped these babies, and she published a book in 1970 titled Allergies:
An Amazing Discovery. Since then, she patented a rooibos extract
that is now used in cosmetic products, and she started her own
line of health and cosmetic products.
Today, South African physicians recommend rooibos for infant
colic. South Africans also use it to calm digestive upset in adults,
to help induce sound sleep, and topically to sooth eczema, skin
allergies, and diaper rash. Not enough research has been done
to know if these folk remedies really are effective or to identify
the substances in the tea that might be responsible for any observable
benefits. Joubert says the tea does seem to help infant colic,
but no formal studies have been done.
Immune Function: An in vitro and in vivo study showed
that rooibos might enhance immune function, but very little research
has been done on this topic. One study found that a polysaccharide
in rooibos leaves may have antiviral activity against the HIV
virus, but the polysaccharide had to be chemically extracted from
the leaves and is not found in tea made by steeping the leaves
in water. There’s no evidence that rooibos tea fights the
HIV virus.
Zero Caffeine and Low Tannin: Several other health
advantages of rooibos tea that are often mentioned are its zero
caffeine content and its low tannin content. Because rooibos is
naturally caffeine-free, it does not have to be subjected to a
decaffeination process and, therefore, does not lose any of its
polyphenol content (as occurs when green and black teas are decaffeinated).
The zero caffeine content also means rooibos can be enjoyed by
those who want to avoid the stimulating effects of caffeine and
can be consumed in quantity by those who want to use it as a fluid
replacement.
Rooibos only has about 4.4 percent tannin content, which means
that it does not have the astringent taste associated with Camellia
Sinensis and will not become bitter even after long steeping times.
Rooibos tea can be a good alternative to C. sinensis for people
who prefer the milder taste of a less astringent herbal tea or
for those who have digestive problems with tannin-rich beverages.
And as Micozzi observes, some people can receive a higher total
antioxidant intake from rooibos than from green or black tea because
the low tannin content and caffeine-free nature of rooibos allow
it to be consumed in larger quantities.
Iron Absorption: Other disadvantages have been attributed
to tannins; they can bind to non-heme iron (iron from non-meat
sources), reducing iron absorption, and they can decrease the
metabolism and utilization of proteins. Black and green teas reduce
the amount of non-heme iron absorbed by the body when the tea
is consumed at the same time as the iron source. These effects
do not cause problems for most people, but they can cause problems
for people who have nutritionally marginal diets or low intake
of heme iron sources (meats).
Other polyphenol-rich beverages besides C. sinensis teas can
also inhibit iron absorption. One study found that the inhibition
of iron was 79 to 94 percent for black tea, 84 percent for peppermint
tea, 73 percent for hot cocoa, and 47 percent for tea of chamomile
(Matricaria recutita L., Asteraceae). The teas still inhibited
iron absorption to the same degree even if milk was added to them.
Some of these beverages contain only low levels of tannins, but
other polyphenols in foods and beverages can also reduce iron
absorption. The ability of polyphenols to chelate prooxidant metal
ions might provide some antioxidant protection, but it can also
be a disadvantage by decreasing absorption of necessary dietary
minerals such as iron.
The low tannin content of rooibos is sometimes used to infer
that rooibos tea won’t inhibit iron absorption, but that
conclusion is not automatic since rooibos is rich in other polyphenols
that might decrease iron absorption. In one small study, three
groups of 10 young healthy men were given an oral dose of iron,
followed by rooibos tea, C. sinensis tea, or plain water. Iron
absorption was measured to be 7.25 percent for rooibos tea, 1.70
percent for C. sinensis tea, and 9.34 percent for plain water.
The result for C. sinensis was significant (P < .0001), but
the data for rooibos did not reach statistical significance (that
is, the data for rooibos were not good enough to determine whether
this result can be generalized to the whole population or whether
the result was just chance). More studies are needed to better
document the effect of rooibos on iron absorption, but this study
implies that rooibos might not inhibit iron absorption nearly
as much as C. sinensis tea.
The Bottom Line
Rooibos tea has become popular because of its fruity, sweet taste
and its caffeine-free, low tannin, antioxidant-rich status. Although
more research is needed, rooibos appears to be safe and free of
side effects. The antioxidants present in rooibos may help protect
against free radical damage that can lead to cancer, heart attack,
and stroke. Unfermented (green) rooibos has a higher amount of
polyphenols than traditional fermented rooibos and generally demonstrates
higher antioxidant and antimutagenic capabilities in vitro. Future
research should reveal whether the antioxidant benefits of rooibos
observed in vitro and in animals translates into health benefits
for humans.
Acknowledgments
The author thanks Elizabeth Joubert, Ph.D., specialist researcher
at South Africa’s ARC Infruitec-Nietvoorbij, and Jeanine
L. Marnewick, senior research scientist at the Program on Mycotoxins
and Experimental Carcinogenesis (PROMEC) at the Medical Research
Council of South Africa, for their quotes and technical input,
as well as for providing copies of several research papers. Their
expertise on rooibos has contributed much valuable information
to this article. Lorenzo Bramati, Ph.D., research scientist at
the Instituto Tecnologie Biomediche CNR in Italy, provided helpful
input and copies of several research papers. Erica Renaud, a member
of the quality control program for ASNAPP (Agribusiness in Sustainable
Natural African Plant Products) at the Center for New Use Agriculture
and Natural Plant Products at Rutgers University provided valuable
input and photos. Marc S. Micozzi, M.D., Ph.D., director of the
Policy Institute for Integrative Medicine, offered helpful review
and comments. Rooibos Ltd./SunnRooibos also provided valuable
insight and photos.
Laurie Erickson, a freelance writer in Mountain View, California,
is interested in the medicinal and horticultural aspects of herbs.
She began investigating rooibos out of personal curiosity and
has no financial connections with the rooibos industry. Her educational
background includes a B.S. in Environmental Earth Science and
an M.S. in Geomechanics from Stanford University. She has also
written the medical website http://www.tendinosis.org and has
been published in the garden section of several newspapers.
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61. Nakano M, Itoh Y, Mizuno T, Nakashima H. Polysaccharide from
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Biochem 1997;61(2):267-71.
62. Hurrell RF, Reddy M, Cook JD. Inhibition of non-haem iron
absorption in man by polyphenolic-containing beverages. Br J Nutr
1999;81(4):289-95.
63. Disler PB, Lynch SR, Torrance JD, Sayers MH, Bothwell TH,
Charlton RW. The mechanism of the inhibition of iron absorption
by tea. S Afr J Med Sci 1975;40(4):109-16.
64. Samman S, Sandstrom B, Toft MB, Bukhave K, Jensen M, Sorensen
SS, Hansen M. Green tea or rosemary extract added to foods reduces
nonheme-iron absorption. Am J Clin Nutr 2001;73(3):607-12.
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Nutr 1982;36(2):116-23.
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71. Hesseling PB, Klopper JF, van Heerden PD. The effect of rooibos
tea on iron absorption. S Afr Med J 1979;55(16):631-2.
HONEYBUSH
1. Honeybush is a distant relative to the Rooibos plant we discussed
above.
2. The scientific name of Honeybush is Cyclopia spp is indigenous
to the cape of South Africa, and is grown in the same area as
is Rooibos.
3. It is used to make a beverage and a medicinal tea, having
a pleasant, mildly sweet taste and aroma, somewhat like honey.
It has become internationally known as a substitute for ordinary
tea (Camellia sinensis).
4. With the dramatic growth in the use of honeybush during the
past five years, export of honeybush tea products is now a major
industry, following up on the success of another tea substitute
from South Africa-rooibos. South Africa produces only 200 tons
of Honeybush tea per year. Not much when compared to the annual
Rooibos tea crop of around 4000 tons.
5. This lesser known tea apparently has plenty to offer. Just
like the ever popular Rooibos tea, the tannin content of Honeybush
tea is very low; and also contains no caffeine at all. Good news
for individuals who face water retention is that this inexpensive
and readily available tea is reported to stave off hunger pangs
and reduce water retention.
History of Honeybush
1. Honeybush is traced back to the tea trade of the Dutch and
the British. A settlement, which eventually became Cape Town,
was established in 1652 as a supply base for the Dutch East India
Company that was trading in Indian tea and Southeast Asian spices.
2. Botanists began cataloguing the rich flora of the cape soon
after. The honeybush plant was noted in botanical literature by
1705. Though there are no published reports at that time of its
use as a tea by the native populations (the San and Khoi-Khoi
tribes, known today as KhoiSan or Bushmen), it was soon recognized
by the colonists as a suitable substitute for ordinary tea, probably
based on observing native practices. In 1814, the British purchased
the Cape Colony from the Dutch, and English became the official
language a few years later, helping to spread knowledge of South
Africa to England and America.
3. In King's American Dispensatory of 1898, under the heading
of tea, honeybush is already listed as a substitute, with reference
to a report from 1881 indicating use of honeybush as a tea in
the Cape Colony of South Africa. The Khoisan of the South African
Cape were also using the tea for treatment of coughs and other
upper respiratory symptoms associated with infections.
4. The plant is a shrub of the Fabaceae family (Leguminosae)
that grows in the fynbos botanical zone (biome).It is a narrow
region along the coast, bounded by mountain ranges. Fynbos is
a vegetation type, characterized mainly by woody plants with small
leathery leaves (fynbos is from the Dutch, meaning fine leaved
plants).
5. The Honeybush plant is easily recognized by its trifoliate
leaves, single-flowered inflorescences, and sweetly scented, bright
yellow flowers. The flowers have prominent grooves on the petals,
a thrust-in (intrusive) calyx base, and two bracts fused at the
base around the pedicel. The genus name Cyclopia alludes to the
intrusive base of the calyx, which contributes to the flower's
unique appearance. Honeybush plants have woody stems, a relatively
low ratio of leaves to stems, and hard-shelled seeds. The most
desirable components for the tea are the leaves and flowers; the
relatively tasteless stems are included.
6. Leaf shape and size differ among the species, but most are
thin, needle-like to elongated leaves. All the species are easily
recognized in the field as they are covered with the distinctive,
deep-yellow flowers, which have a characteristic sweet honey scent.
Traditionally, the tea is harvested during flowering-either in
early autumn or late Spring-depending on the flowering period
of the species. However, with the larger demand for products,
some collection is extended into the summer.
7. In 1998, a group of farmers formed the South African Honeybush
Producers Association (SAHPA). In the spring of 2001, the first
large scale South African plantation dedicated to honeybush began
operation in the town of Haarlem. The farm is the result of a
joint partnership between South Africa and the U.S. (one of the
potential large customers, along with Japan and Canada). The principal
organizations involved are the ASNAPP (Agribusiness in Sustainable
Natural African Plant Products), Rutgers University (New Jersey),
and the Herb Research Foundation (Colorado). The goal is to develop
a successful cooperative farm operated by local growers who will
cultivate 100,000 or more honeybush plants. Based on a successful
start of the Haarlem plantation, another cultivation project was
started in Ericaville.
Honeybush Production
The manufacture of honeybush is consistent with the ways
of producing Rooibos.
1. The gathering of the raw material from natural field populations
often takes days, since many of the plants are harvested in the
mountainous regions. Cultivated fields make the harvest much easier.
The bushes are often cut to the ground, as this facilitates future
harvesting: the plant sprouts readily from the root base. Bushes
previously harvested give better material for processing as the
stems are softer and have higher leaf-to-stem ratios than older
plants preserved by limited cuttings. By contrast, older bushes
that are not regularly harvested give too much coarse material
due to thicker stems. Ideally, the bushes are harvested every
two to three years. Cyclopia bushes that have grown in an area
subject to fire show more growth and have more flowers, thus giving
good material for the making of tea.
2. The collected shrubs are brought to the factories where they
are first chopped by mechanized fodder cutters before curing.
Chopping ensures the disruption of cellular integrity and facilitates
fermentation, a process that turns the herb material dark brown.
Leaves that are not adequately cut often retain a green to light
brown color.
3. There are currently two methods for honeybush tea fermentation:
using a curing heap or using a baking oven. When large quantities
of tea are produced, the common method of honeybush tea fermentation
is the use of curing heaps. An oval-shaped heap of approximately
4-5 meters in diameter and 2 meters high is formed from 1.5-2.5
tons of the green honeybush material. The heap is packed firmly,
covered with canvas bags, and left for three days to allow spontaneous
heat generation and fermentation. Temperature build-up is quick.
4. During the fermentation period, the material changes from
green to dark-brown and develops a sweet aroma. From the third
day onwards, the heap is turned every 12 hours to ensure that
the outer, cooler regions are mixed with the rest of the material;
this also prevents oxygen deletion in the heap. The heap is inspected
after 3-5 days of fermentation, depending on the species used.
If a sweet, honey-like aroma is present and the material has a
dark-brown color, the heap is spread out in a thin layer on canvas
and allowed to dry in the sun. The tea normally takes 1-2 days
to dry.
5. The second way to stop the fermentation process is to use
a preheated oven which gives the Honeybush a better and more consistent
quality since more precise control over the temperature of the
fermentation process is possible. Further, shorter fermentation
periods (just 24-36 hours) are needed to obtain fully fermented
tea. Baking ovens have been used for more than 100 years. Originally,
the material was pre-heated by scalding with hot water, and the
drums used as ovens were pre-heated with hot coals before putting
the herb material (in bags) into them. More sophisticated techniques
are used today. As with the curing heap preparation, after fermentation,
the tea is dried in the sun.
6. The final product is put through a rotating cylindrical sieve
to remove all the pieces thicker than a matchstick. The finer
tea material is used for making teabags, while the coarser material
is supplied in bulk for brewing as loose tea.
Health Benefits of Honeybush
1. Honeybush tea is made as a simple herbal infusion.
2. One of its early recognized benefits as a tea substitute is
its lack of caffeine, which makes it especially suited for nighttime
consumption and for those who experience nervousness and want
to avoid ordinary tea. As a result, it had a reputation as a calming
beverage, though it may not have any specific sedative properties.
It also has a low content of tannins, so it doesn't make a highly
astringent tea, which can be a problem with some grades of black
or green tea or when ordinary tea is steeped too long.
3. The traditional use of the tea for treating cough may be explained,
in part, by its content of pinitol, a modified sugar (a methyl
group replaces hydrogen in one position of glucose; see diagram
below) that is similar to inositol. Pinitol, named for its major
source, pine trees, is also found in the leaves of several legume
plants; it is an expectorant. Pinitol is also of interest for
apparent blood-sugar lowering effects (3), as demonstrated in
laboratory animal studies (it may increase the effects of insulin),
and is being considered as a drug for diabetes.
4. Honeybush also contains flavones, isoflavones, coumestans,
luteolin, 4-hydroxycinnamic acid, polyphenols, and xanthones (4).
These ingredients serve as antioxidants and may help lower blood
lipids (5). The isoflavones and coumestans are classified as phytoestrogens,
used in the treatment of menopausal symptoms (6), an application
for which honeybush has recently been promoted. The flavones and
isoflavones of honeybush are similar to those in soy, another
leguminous plant, also used in treatment of menopausal symptoms.
5. Luteolin is the primary yellow pigment of the flowers and
has been used historically as a dye (most often obtained for this
purpose from the plant called Dyer's Weld, Reseda luteola).
6. The tea can be consumed daily, or can be rotated with other
beverage teas, such as Rooibos and ordinary tea. For treatment
of coughs, or as an aid in regulating blood sugar in diabetes,
or helping reduce menopausal symptoms, the tea would be taken
several times per day.
REFERENCES
1. Smith M, et al. (compilers), Honeybush, 2001 Agribusiness in
Sustainable Natural African Plant Products (ASNAPP), Dennesig,
South Africa.
2. van der Walt L. Cyclopia genistoides, 2000 National Botanical
Institute, South Africa [http://www.plantzafrica.com/plantcd/cyclopiagenistoides.htm].
3. Bates SH, Jones RB, Bailey CJ, Insulin-like effect of pinitol,
British Journal of Pharmacology 2000; 130(8): 1944-1948.
4. Kamara BI, et al., Polyphenols from honeybush tea, Journal
Agricultural Food Chemistry 2003; 51(13): 3874-3879.
5. Marnewick JL, et al., Modulation of hepatic drug metabolizing
enzymes and oxidative status by rooibos and honeybush, green and
black (Camellia sinensis) teas in rats, Journal Agricultural Food
Chemistry 2003; 51(27): 8113-8119.
6. Chiechi LM, Dietary phytoestrogens in the prevention of long-term
postmenopausal diseases, International Journal of Gynecology and
Obstetrics, 1999; 67(1): 39-40.
Chamomile Tisane
1. Chamomile is one of the most popular herbs in the world,
available in a variety of forms.
2. The word chamomile is derived from the Greek chamos (ground)
and melos (apple), referring to the plant's low growing habit
and the fact that the fresh blooms are somewhat apple-scented
(Smith, 1963).
3. The most prominent way this herb is enjoyed is as a tisane,
or herbal tea.
Types of Chamomile
1. There are two main a types of Chamomile: Roman and German.
Roman chamomile is native to Western Europe and North Africa,
flowering in late spring or early July.
2. German chamomile, which was used to make beer, and is indigenous
to western Asia.
3. But the most famous Chamomile and the only one we buy at the
Tea Garden is the Chamomile grown in Egypt. These roots as we
will see have a long history.
4. Egypt provides us with the finest chamomile flowers. They produce
the chamomile with the flower heads only as no extenders are included.
This is why the Egyptian Chamomile smells so wonderful.
History of Chamomile
1. The first recorded mention of Chamomile being consumed as a
beverage was in a document known as the Ebers Papyrus, dating
back to 1550 BC. In Ancient Egypt, Chamomile was used to honor
the gods, embalm the dead and cure the sick.
2. The Egyptians dedicated the herb to the sun and worshiped
it above all other herbs for its healing properties. Hieroglyphic
records also show that chamomile was used cosmetically for at
least 2,000 years. Egyptian noblewomen used preparations of crushed
petals on their skin.
3. The Early Romans also enjoyed Chamomile as a beverage as well
as incense. Ironically, the name "Roman Chamomile" does
not stem from this time. It rather comes from an arbitrary naming
of the herb in the 19th Century by a botanist who happened to
find some growing in the Roman Coliseum.
4. The word "Chamomile" as we now know it comes from
the ancient Greek kamai-melon, or "ground apple."
5. The Spanish call Chamomile "Manzanilla"-- or "little
apple." A leisurely stroll through the famous Chamomile Lawn
of BuckinghamPalace is sure to provide this sensation.
6. In the middle Middle Ages it was used as a 'strewing' herb
to improve the atmosphere at gatherings and festivals, and to
the Anglo Saxons it was one of the 'Nine Sacred Herbs' and known
as 'Maythen'.
7. In these times it was also used widely in Beer Making as a
bittering ingredient, and it was not until hops took over that
function in beer-making that it ceased to be used for this purpose.
8. In the Monasteries the monks during the Middle Ages became
the main custodians of herbal knowledge in Europe collecting and
translating ancient works on herbal remedies and developing their
own. It was at this time that the 'double headed' variety of Anthemis
nobilis 'Flora Pleno' is first mentioned, as a milder and less
bitter source for tinctures and tisanes and was cultivated in
monastery gardens.
Like a chamomile bed -
the more it is trodden
the more it will spread
9. The monks also noticed the plant's property of being beneficial
when planted near ailing or sick plants, often aiding a full recovery.
This has given Anthemis nobilis the reputation of being 'The Plant's
Physician', and studies are currently underway to investigate
the causes of this interesting 'virtue'.
10. The Alchemists at this time too, probably originating in
the East and soon spreading into Western Europe as part of the
development of Alchemy, the techniques of distillation were applied
to plant materials as part of the Alchemist's ongoing investigations
into the nature of matter. It was from this era that the idea
of 'Essences' developed and the name 'Essential Oil' was applied
to the oils derived from aromatic plants by distillation. Since
the days of the Alchemist, the method of extracting essential
oil from aromatic herbs has remained in principle, exactly the
same process.
Health Benefits of Chamomile
1. There are many traditional remedies which employ Chamomile.
These include everything from a cure for a cough or bronchitis,
a fever, inflammation of the skin, liver and gallbladder complaints
to appetite stimulator.
2. One herbal medicine guide even claims that if you drink chamomile
tea before bed, you won't have nightmares.
3. However, current studies are reinforcing some of these dated
claims. A recent report in the Journal of Agricultural and Food
Chemistry confirms that chamomile is an effective anti-inflammatory,
sedative and ulcer-fighter. Research also suggests that chamomile
may act as an antioxidant and antimicrobial.
4. During the study, researchers tested 14 healthy volunteers
who drank five cups of chamomile tea every day for two weeks.
They found that drinking tea produced an increase in a substance
that helps the body fight off colds.
Healing Benefits of Chamomile
For centuries Chamomile was used for their healing benefits. I
remember my own grandmother using our house chamomile for some
of the ailments below. Please consult your physician before using
any of the formulas below for yourself.
Stomach: A chamomile tisane can be made for digestion,
stomach spasms, gas, and stomach aches. Add one or two tablespoons
of chamomile flowers to a cup of boiling water and drink slowly,
1/2 a cup at a time. When you make this tisane (tea) remember
that you should always let the tea brew in a covered container
or else the steam escapes, along with the medicinal value of the
flowers.
Bad Dreams: Gypsies believed that chamomile prevented
nightmares, so drinking chamomile tea on a bad night may keep
the dreams sweet. A little bit of chamomile under the pillow at
night would have the same mystical effect.
Antiseptic: Mrs. M. Grieves writes in A Modern Herbal
that the "antiseptic powers of Chamomile are stated to be
120 times stronger than sea-water." Sea water is a natural
way to clean out any cut, scrape or wound. Use hot chamomile paste
applied to inflamed, sore, or swollen areas to reduce the irritation
and redness. You can make the paste by adding a little hot water
to to the flowers and grinding them with a mortar and pestle.
Combine with an equal amount of crushed poppy heads for an even
more powerful poultice.
Hair: A strong infusion of chamomile can be used to subtly
add golden highlights to ashy brown hair. My own sister used chamomile
during the winter months to lighten her natural blond hair. According
to Buchman (Herbal Medicine) chamomile can be combined with henna
to "add beautiful highlights to dark hair".
Skin: Steaming the face with chamomile is a wonderful
way to have your own at-home facial. Bring some water to a boil
and remove it from the heat, then pour it in a wide bowl. Add
a generous amount of chamomile flowers. Turn your face down towards
the bowl and drape a towel over your head to keep the steam in.
Steam for 15-20 minutes. This will open the pores and gently release
any trapped dirt. Rinse face with lukewarm water immediately after
steaming.
Pain: Applying a chamomile paste will help ease pain
in sores and swellings. An infusion can be added to a bath to
relieve sore and aching body parts.
Insect Repellant: A strong tea can be poured in a spray-bottle
and sprayed on exposed skin to repel flies, gnats, and mosquitoes.
This is a good natural alternative to store-bought chemical repellants.
Some Other Documented Uses:
• Indigestion
• Anxiety
• Insomnia
• Canker sores
• Colic
• Conjunctivitis, eye irritations
• Crohn's disease
• Diarrhea
• Eczema
• Gingivitis
• Hemorrhoids
• Menstrual disorders
• Migraine
• Irritable bowel syndrome
• Peptic ulcer
• Skin irritations
• Ulcerative colitis
• Minor wounds
"..... Peter was not very well during the evening. His
mother put him to bed, and made some chamomile tea and she gave
a dose of it to Peter."
From The Tale of Peter Rabbit by Beatrix Potter
Herbal Mint Tea
After lengthy research Dr. Tea has found a wonderful article
on herbal Mint Tea which was used in making the following article:
Peppermint." Encyclopedia of Alternative Medicine. Thomson
Gale, 2006. eNotes.com. 2006. 18 Jun, 2006 http://health.enotes.com/alternative-medicine-encyclopedia/
peppermint
1. Peppermint (Mentha piperita) is an aromatic perennial plant
that grows to a height of about 3 ft (1 m). It has light purple
flowers and green leaves with serrated edges.
2. Peppermint belongs to the Lamiaceae family and grows throughout
North America, Asia, and Europe. There are more than 25 species
of true mint grown throughout the world. We at the Tea garden
purchase American Peppermint for our Herbal Mint Tea.
3. The plant is harvested when the oil content is highest. When
ready for harvest, it is always collected in the morning, before
noon sun reduces the leaf essential oil content. This generally
takes place shortly before the plant blooms, which occurs in the
summer (July through August) or during dry, sunny weather. The
United States is responsible for producing 75% of the world's
supply of peppermint.
History of Mint Tea
1. Peppermint is a natural hybrid of water mint (Mentha aquatica)
and spearmint (Mentha spicata) and was first cultivated in England
in the late seventeenth century.
2. The herb has been used as a remedy for indigestion since Ancient
Egyptian times. In fact, dried peppermint leaves were found in
Egyptian pyramids dating back to 1000 B.C.
3. The ancient Greeks and Romans valued it as a stomach soother.
4. During the eighteenth century, peppermint became popular in
Western Europe as a folk remedy for nausea, vomiting, morning
sickness, respiratory infections, and menstrual disorders.
5. Peppermint was first listed in the London Pharmacopoeia in
1721. In modern times it appears in the British Herbal Pharmacopoeia
as a remedy for intestinal colic, gas, colds, morning sickness,
and menstruation pain.
Properties of Mint Tea
1. Peppermint is a cooling, relaxing herb that contains properties
that help ease inflamed tissues, calm muscle spasms or cramps,
and inhibit bacteria and microorganisms. It also has pain-relieving
and infection-preventing qualities.
2. The medicinal parts of peppermint are derived from the whole
plant, and include a volatile oil, flavonoids, phenolic acids,
and triterpenes. The plant is primarily cultivated for its oil,
which is extracted from the leaves of the flowering plant.
3. The essential oil contains the principal active ingredients
of the plant: menthol, menthone, and menthyl acetate. Menthyl
acetate is responsible for peppermint's minty aroma and flavor.
Menthol, peppermint's main active ingredient, is found in the
leaves and flowering tops of the plant. It provides the cool sensation
of the herb.
4. The menthol content of peppermint oil determines the quality
of its essential oil. This varies depending upon climate, habitat,
and where the peppermint is grown. For instance, American peppermint
oil contains 50–78% menthol, while English peppermint oil
has a menthol content of 60–70%. Japanese peppermint oil
contains 85% menthol. Peppermint and its oils help with intestinal
function.
5. Peppermint also contains vitamins A and C, magnesium, potassium,
inositol, niacin, copper, iodine, silicon, iron, and sulfur.
Health Benefits of Mint Tea
Peppermint and headaches
Peppermint's pain-relieving effects on headaches have been known
for many years. The first documented report to link peppermint
and headache relief was published in 1879. A more recent study
took place in Germany in 1996. In this double-blind study, researchers
found that an ethanol solution containing 10% peppermint oil was
as effective in relieving headache pain as 1,000 mg of acetaminophen.
In another study, 32 people with headaches massaged peppermint
oil on their temples. The results showed that the peppermint oil
significantly relieved their pain.
When applied to the skin, peppermint reduces sensitivity and
relieves pain. Rubbed on the temples, across the forehead, and
behind the neck, peppermint oil helps to ease digestive-related
headaches and migraines by generating a cooling effect on the
skin and relaxing cranial muscles.
Peppermint as a digestive aid
Peppermint is employed in the treatment of various digestive ailments,
such as irritable bowel syndrome, Crohn's disease, diverticulitis,
liver and gallbladder complaints, loss of appetite, spastic colon,
diarrhea, gas, bloating, colic, cramps, and heartburn. The infused
herb tea of peppermint or a few drops of its essential oil stimulate
the flow of digestive juices and the production of bile, a substance
that helps to digest fats. This eases indigestion, relieves gas,
reduces colon spasms, and eases motion sickness and nausea. When
peppermint is taken after a meal, its effects will reduce gas
and help the digestion of food by reducing the amount of time
the food is in the stomach. This is one reason after-dinner mints
are so popular.
The compounds of the essential oil have antispasmodic properties
that reduce spasms of the colon and intestinal tract and relax
the stomach muscles. Peppermint has a soothing effect on the lining
and muscles of the colon, which helps to relieve diarrhea and
spastic colon.
Menthol acts to stimulate the stomach lining. Its cooling properties
soothe the stomach and ease stomach pain. Peppermint oil is popular
in the treatment of motion and sea sickness and nausea associated
with pregnancy. It acts as an anesthetic to the stomach wall and
eases vomiting and nausea. An account on the effects of peppermint
on nausea appeared in the September 1997 issue of the Journal
of Advanced Nursing, in which gynecological patients were given
peppermint oil to counter post-operative nausea. The patients
reported less nausea and required fewer drugs to treat the nausea.
A German health commission, German Commission E, has endorsed
peppermint tea as a treatment for indigestion. Clinical trials
in Denmark and Britain in the 1990s confirmed peppermint's actions
as a therapeutic treatment for irritable bowel syndrome. In 1996,
a German study was performed to research the therapeutic benefits
of peppermint essential oil on irritable bowel syndrome. Subjects
with irritable bowel syndrome were given enteric-coated capsules
containing peppermint and caraway oils. Results showed that the
pain symptoms, which ranged from moderate to severe, improved
in 89.5% of the group.
Peppermint and Respiratory Ailments
Peppermint is an expectorant and decongestant. It is used to help
treat many respiratory ailments including asthma, bronchitis,
sinusitis, and coughs.
Peppermint is an element of many cough preparations, not only
for its pleasant flavor, but also because it contains compounds
that help ease coughs. Constituents of peppermint increase the
production of saliva, causing frequent swallowing and suppressing
the cough reflex.
German Commission E has officially recognized peppermint's ability
to reduce inflammation of nasal passageways. When menthol vapors
are inhaled, nasal passageways are opened to provide temporary
relief of nasal and sinus congestion.
Peppermint essential oil is an ingredient in many commercial
chest and cold rubs. These are popularly rubbed onto the chest
to ease congestion.
A tea made from the leaves can stimulate the immune system and
relieve the congestion of colds, flu’s, and upper respiratory
infections.
Other Health Conditions & Mint Herbal Tea
Peppermint is an effective relaxant and can be helpful in treating
nervous insomnia, stress, anxiety, and restlessness.
Many over-the-counter balms and liniments contain peppermint
essential oil. These are applied externally to relieve muscle
pain, arthritis, itching, and fungal infections.
Peppermint induces sweating and can help bring down fevers. It
is said that it contains antioxidants that help prevent cancer
and heart disease. The essential oil is a powerful antiseptic
and is useful in treating bad breath and sore throats. It is also
beneficial in preventing tooth decay and gum disease.
A plant with potent antiviral properties, peppermint can help
fight viruses that cause ailments such as influenza, herpes, yeast
infections, and mumps. Peppermint is also used as an earache remedy,
to dissolve gallstones, to ease muscle tightness, and to ease
menstrual cramps.
A 2002 report announced that peppermint also helped participants
in a study run faster do more pushups and show greater grip strength
than those who were not exposed to peppermint scent. Although
researchers concluded the effect may have been psychological,
a result of peppermint is the effect on mood and increased motivation,
it still resulted in measurable performance improvement.
Aromatherapy and Peppermint Tea
The essential oil of peppermint is a pale yellow or greenish liquid
that is made by distilling the flowering herb. When inhaled, the
oil can reduce fever, relieve nausea and vomiting, improve digestion,
and soothe the respiratory system. Various studies have been performed
on the oil's ability to improve the sense of taste and smell and
improve concentration and mental acuity when inhaled.
The oil blends well with other essential oils such as benzoin,
rosemary, lavender, marjoram, lemon, eucalyptus, and other mints.
Essential oils are available at many health food stores or through
a qualified aromatherapist.
Peppermint essential oil can be used in several ways: inhaled,
rubbed on reflexology points on the bottom of the feet, diffused
into the air, or as a therapeutic bath.
Below are some applications for the use of peppermint essential
oil:
• Steam inhalation for congestion relief: A few
drops of the essential oil of peppermint are placed in a large
bowl of hot water. The person should cover his or her head with
a towel, lean over the bowl, and inhale the steam.
• Motion sickness: A few drops of essential oil
should be places on a tissue and inhaled.
• Headaches: A few drops can be placed on a cool,
wet towel and used as a compress on the forehead. Or, massaged
into the neck, back, temples, and/or forehead.
• Digestion: Several drops of diluted oil massaged
on the stomach or the pure oil rubbed onto the bottoms of the
feet.
• Breath freshener: Several drops placed on the
tongue.
• Therapeutic bath: Several drops of diluted oil
placed into a tepid bath to relieve stomach complaints, nasal
congestion, headache, or menstrual cramps. If essential oil is
not available, a bath can be made by adding to the water a cloth
bag filled with several handfuls of dried or fresh peppermint
leaves.
As with any essential oil, caution should be taken when using
it. Essential oils are highly concentrated and should be diluted
with a vegetable oil prior to external use to prevent adverse
reactions, as some people are allergic to peppermint or its essential
oil. The oil may cause a skin reaction if the dosage is excessive.
Avoid contact with the eyes.
Precautions with Mint Tea
Extreme caution should be used when administering to children
under five years of age as the menthol can cause a choking reaction
in young children.
Peppermint oil should not be applied to the faces of infants or
small children. The essential oil of peppermint should not be
ingested unless under professional supervision. Pure menthol or
pure peppermint should not be ingested. Pure peppermint may cause
an irregular heartbeat. Pure menthol is poisonous and fatal in
doses as small as 1 tsp.
Pregnant women with a history of miscarriage should use peppermint
with caution. Large amounts of peppermint may trigger a miscarriage.
Additional caution should be practiced by women who are breast-feeding
their infants.
Side effects of Mint Tea
1. If the essential oil is not used properly it can cause dermatitis
and other allergic reactions.
2. Rare reactions to enteric-coated capsules may occur. These
reactions include skin rash, heartburn, slow heart rate, and muscle
tremors.
3. Large internal doses of peppermint essential oil may result
in kidney damage.
Resources:
BOOKS
• Foster, Steven, and Varro E. Tyler, Ph.D. Tyler's Honest
Herbal. The Haworth Herbal Press, 1999.
PERIODICALS
• Moxey, Beth."A Peppermint Twist: New Research Shows
that a Whiff of Peppermint May Improve Your Running (Health and
Fitness)." Runnerís World (January 2002): 21.
• "Peppermint Oil and Tea Best for Nose and Stomach,
Not Lungs." Environmental Nutrition (January 1997):7.
• Siegel–Maier, Karyn. "Peppermint: More Than
Just Another Pretty Flavor." Better Nutrition (February 1998):
24.
by Dr. Tea (tm), Tea Expert
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