Green Tea Extract 　　Both powder and liquid

Product Name: Green Tea Extract

Plant Species v : Camellia sinensis Kunth., Thea sinensis L.

Plant Material: Folium

Common Name: Green Tea (English), 绿茶 (chinese)

Carrier : N/A, made from pure 100 % tea extraction

Molecular formulas : C22H18O11

Molecular weight : 281.36

Test Method: HPLC

Qualitative Description

1. Color: Greenish brown to light brown

2. Form: Homogeny, fine powder

3. Odour&taste : Characteristic odor and taste of Tea

Physicochemical Description

1. Solubility : above 95% soluble in water

2. pH at: 5.0 - 7.0

3. Particle Size :100% pass 80 mesh

4. Tapped Density: 0.45 -0.60 g/ml

5. Lost on drying : M3-5%

Microbial Contamination

1. Aerobic Plate Count : ≤ 1000 cfu/g

2. Yeast & Mold : ≤ 100 cfu/g

3. E. Coli : Negative

4. Salmonella sp : Negative

General User Information

1. Storage : Store at a well closed container, well ventilated room

2. Durability : 12 months with proper storage

Packaging Information

20kg or 25kg/ drum,with hull inside.

Folkore Uses

Tea has been served as a part of various ceremonies, and has been used to stay alert during long meditations Traditional Chinese Medicine uses green tea as an astringent, cardiotonic, central nervous system stimulant, and diuretic. It may be used for treating flatulence, for regulating body temperature, promoting digestion, and improving mental processes. Green tea also used to preventive against elevated blood fats, hardening of the arteries, dental decay, gum disease and cancer. In India, the leaf infusion of green tea has additionally been used to treat fungal infections Tea leaves may be used externally to soothe insect bites and sunburn.

Constituents

Green tea contain flavonoids, a large group of polyphenolic compounds with antioxidant properties. Of the flavonoids found in green tea, catechin make up 30-50% of the dry tea leaf weight. These include epigallocatechin gallate, epicathecin, and epicatechin gallate. Green tea also contains flavonols, tannins, minerals, free amino acids, and methylxanthines (caffeine, theophylline, and theobromine).

Scientific Evidence

There is clinical evidence that Green tea has cancer preventive effects. The types of cancer that Green tea has been shown to prevent as demonstrated in well controlled clinical studies, include cancers of the pancreas, colon, small intestine, stomach, breast, and the lung. A two-part case control study of 472 Japanese women with stage I, II, and III breast cancer was conducted. Increased consumption of green tea was significantly associated with decreased numbers of axillary lymph node metastases among premenopausal patients with stage I and II breast cancer and increased expression of progesterone reseptor and oestrogen reseptor in postmenopausal patients. In a follow up study, increased consumption of green tea was correlated with reduced reccurence of stage I and II breast cancer; the reccurence rate was 16.7% among those consuming five or more cups daily, or 24.3% in those consuming four or fewer cups daily.

Much of the research has been done with EGCG, and it appears that, just as EGCG appears to be the most potent antioxidant of the green tea, it also may have the greatest possible anticarcinogenic activity. The exact mechanisms of the anticarcinogenic activity are reported to promotes inhibition of biochemical markers of tumor initiation and promotion, induction of apoptosis, and inhibition of cell replication rates thus retarding the growth of neoplasm. A cross-sectional study of the effects of drinking green tea on cardiovascular and liver disease in 1371 Japanese men (aged > 40 years) showed that increased green tea consumption was associated with reduced serum concentrations of total cholesterol and triglyceride and an increased proportion if High-density lipoprotein (HDL) cholesterol with a decreased proportion of LDL and very-low-density lipoprotein (VLDL) cholesterol. It also has been employed therapeutically as a stimulant for the central nervous system because pharmacological affect of caffein could increases calcium entry into smooth heart and striatial muscles.