Green tea extract powder

• Product Detail

Product name	Green tea extract powder
Latin Name	Camellia sinensis (L.) O. Ktze.
Active ingredients	EGCG/EGC/ECG/EC/DL-C/Tea Polyphenols etc.
synonyms	Camellia sinensis, Camellia thea, Camellia theifera, Constituant Polyphénolique de Thé Vert, CPTV, EGCG, Epigallo Catechin Gallate, Épigallo-Catéchine Gallate, Epigallocatechin Gallate, Extrait de Camellia Sinensis, Extrait de Thé, Extrait de Thé Vert, Extrait de Thea Sinensis, Green Sencha Tea, Green Tea Extract, Green Tea Polyphenolic Fraction, GTP, GTPF, Japanese Tea, Kunecatechins, Poly E, Polyphenon E, PTV, Té Verde, Tea, Tea Extract, Tea Green, Thé, Thé de Camillia, Thé Japonais, Thé Vert, Thé Vert de Yame, Thé Vert Sensha, Thea bohea, Thea sinensis, Thea viridis, Yame Green Tea, Yame Tea.
Appearance	Red brown/ Light yellow/ Yellow fine powder
Part used	leaf
Specification	EGCG90%-98%/EGC90%-98%/ECG90%-95%/EC90%-98%/DL-C90%-98%/Tea Polyphenols20%-99%
Dosage	300-400mg daily
Main benefits	Antioxidant, Cancer, Weight loss
Applied industries	Medicine, food additive, dietary supplement

What is Green tea extract powder?

Archeological evidence suggests that tea leaves steeped in boiling water were consumed as many as 5,000 years ago. Botanical evidence indicates that India and China were among the first countries to cultivate tea. Although the English are known for their love of tea, Americans invented the tea bag and began the practice of drinking iced tea in the early 1900s. Today, hundreds of millions of people drink tea around the world, and studies are now suggesting that one variety of tea in particular -- green tea (Camellia sinensis) -- has many health benefits.

Among populations in China and Japan, where high amounts of green tea are consumed daily, cancer rates are statistically lower. There is now growing scientific research from reputable sources that shows promising results as to how the active ingredients in green tea might be responsible for lowering rates of various kinds of cancer.

Green tea extract is derived from leaves of camellia sinensis. It is associated with several health benefits, many supported by preliminary scientific research. This includes potential cancer-fighting properties, and a strong antioxidant effect that protects the body from the damaging effect of free radicals.

Chemical constituents of Green tea extract powder

The chemical composition of green tea varies with climate, season, horticultural practices, and age of the leaf (position of the leaf on the harvested shoot). The major components of interest are the polyphenols. The term polyphenol denotes the presence of multiple phenolic rings (A phenolic ring is a 6-carbon benzene ring with an attached hydroxyl (OH) group -- also referred to as the hydroxyl functional group). The major polyphenols in green tea are flavonoids (e.g., catechin, epicatechin, epicatechin gallate, epigallocatechin gallate (EGCG), and proanthocyanidins). Epigallocatechin gallate is viewed as the most significant active component. The leaf bud and first leaves are richest in epigallocatechin gallate. The usual concentration of total polyphenols in dried green tea leaves is around 8 to 12 percent.

Other compounds of interest in dried green tea leaves include caffeine (3.5 %), an amino acid known as theanine (4%), lignan (6.5 %), organic acids (1.5 %), protein (15%), and chlorophyll (0.5%).

Benefits of taking Green tea extract powder supplements:

Cancer

The cancer-protective effects of green tea have been reported in several population-based studies. For example, cancer rates tend to be low in countries such as Japan where green tea is regularly consumed. However, it is not possible to determine from these population-based studies whether green tea actually prevents cancer in people. Emerging animal and clinical studies are beginning to suggest that EGCG may play an important role in the prevention of cancer.

UCLA's Jonsson Comprehensive Cancer Center, an award-winning cancer research center, reported in their 2005 Cancer Discoveries newsletter that several published, peer-reviewed studies indicated that green tea extract “induces death in cancer cells” without affecting healthy cells, and prevents cancer cells from producing the “independent blood supply” required to spread to other parts of the body. This indicates that the extract might help to keep cancer contained, making it easier to treat.

Atherosclerosis

According to Japanese research, green tea reduces the levels of LDL or 'bad' blood cholesterol, thereby reducing the risk of coronary heart disease. European studies have found that regular consumption of tea protects against heart disease, with one study documenting that the risk was 36 per cent lower for tea drinkers. It is believed that the polyphenols in tea help prevent arthrosclerosis.

Preliminary research also indicates that tea polyphenols may reduce the activity of platelets, which are the clotting agents of the blood. This is good, because 'sticky' blood is more likely to form artery-blocking clots.

Green tea has demonstrated an ability to lower total cholesterol and raise HDL ("good") cholesterol in both animals and people. One population-based study found that men who drink green tea are more likely to have lower total cholesterol than those who do not drink green tea. Results from one animal study suggest that polyphenols in green tea may block the intestinal absorption of cholesterol and promote its excretion from the body.

Green tea extract might also be beneficial in improving cardiovascular circulation by reducing LDL or “bad cholesterol,” suppressing appetite and improving oxidation of fat. These claims are not widely accepted by the scientific community, however, because they are based on animal models and only a few human studies.

Antioxidant

Researchers at the University of Kansas feel that EGCG is at least 100 times more effective than vitamin C and 25 times better than vitamin E at protecting cells and their genetic material, DNA, from damage believed to be linked to cancer, heart disease and other potentially life-threatening illnesses. EGCG, carries twice the antioxidant punch of resveratrol, found in red wine.

University of Kansas researcher Dr. Mitscher says. "I'm not making any claims, but, used in conjunction with a healthful diet and exercise program, it's like an insurance policy. It increases your odds of avoiding or postponing diseases associated with free radicals."

The antioxidant activity of EGCG helps tremendously to combat post muscle exercise soreness.

Weight loss

Studies suggest that EGCG may boost metabolism and help burn fat. In a French study, resting metabolic rate increased by 4% after 90mg of EGCG was consumed three times per day.

Scientists at the University of Chicago's Tang Center for Herbal Medicine Research have found that EGCG caused rats to lose up to 21 percent of their body weight. Rats injected with EGCG derived from green tea leaves lost their appetites and consumed up to 60 percent less food after seven days of daily injections. EGCG seems to desensitize leptin receptors (leptin may play a role in appetite) in the study animals (Endocrinology, March 2003).

EGCG is rapidly replacing ephedra as a weight loss supplement.

Side effects and safety of Green tea extract powder 

Green tea is LIKELY SAFE for most adults. Green tea extract is POSSIBLY SAFE for most people for short-term use. In some people, green tea can cause stomach upset and constipation.

Dosage of Green tea extract powder supplement:

For a green tea extract standardized for 80 percent polyphenols and 55 percent EGCG, a daily dose of 300 to 400 mg green tea extracts is recommended.