Green Tea Extract,China KINGHERBS price supplier

Green Tea Extract

Latin Name: Camellia sinensis O.Ktze
Description: The active constituents in green tea are powerful antioxidants called polyphenols (catechins) and flavonols. Tannins in tea are large polyphenol molecules and form the bulk of the active compounds in green tea, while catechins make up nearly 90% of the tannins. Several catechins are present in significant quantities and account for the bulk of research: epicatechin (EC), epigallocatechin (EGC), epicatechin gallate (ECG) and epigallocatechin gallate EGCG., EGCG accounts for 10-50% of the total catechin content and appears to be the most powerful of the catechins; its antioxidant activity about 25-100 times more potent than vitamins C and E. One cup of green tea may provide 10-40mg of polyphenols and has antioxidant activity greater than a serving of broccoli, spinach, carrots or strawberries.

Function:
(1) Applied in food field, it is used as natural antioxidant, antistaling agent, and anti-fading agents.
(2) As cosmetics and daily chemical additive, it owns the effect of anti-wrinkle and anti-Aging. It can dispel spot, prevent and treat skin disease and sensibility, decayed tooth, dental plaque, periodontitis and halitosis, protect skin from the harmful solar ray and prevent skin cancer.
(3) As Anti-color fading in the textile and a good detergent for washing oily fabrics.
(4)Applied in pharmaceutical field, it is used to prevent and cure cardiovascular disease, diabetes. It owns the effect of sterilization and antivirus. It is available as raw material of subsidiary and healthcare medicine.

Active Ingredient: Tea Polyphenol; EGCG; Catechins; caffeine; Theaflavin.
Tea Polyphenol
CAS#: 84650-60-2
EGCG:
CAS#: 989-51-5
Molecular formula: C22H18O11
Molecular Weight: 458.3717
Catechins:
CAS#:7295-85-4
Molecular formula: C15H14O6*H2O
Molecular Weight: 308.28
Theaflavin:
CAS#: 4670-05-7
Molecular formula: C29H24O12
Molecular Weight: 516.5

Plant part Used: Leaf
Test Method: HPLC/UV
Specifications: TEA POLYPHENOLS 20%-98% UV; catechins30%-90% HPLC; EGCG 15%-98%; Caffeine NMT 0.3%
Appearance: Light yellow to yellow-brown or light green powder
Package: 25 kg/drum.