Product Name: Black Tea Extract

Other name: Black Tea P.E., BTE, TEA Polyphenols/ Theaflavin

Botanical source: Gamellia sinensis O.Ktze.

Extraction Part: leaf

Extract Method: Water/Grain alcohol

Active Ingredients: TEA Polyphenols/ Theaflavin

Test Method: UV/HPLC

Specifications: Tea polyphenolS 20%-98%, Theaflavin 20%-60%

Appearance   Red brown Fine Powder

Packing         25kg/carton

Origin        China

Storage: store in cool & dry area, keep away from the direct light and heat.

Shelf life: 2 years if properly stored

Application: Pharmaceutical, food, cosmetics etc.

 

Tea polyphenols

 

CAS No.: 84650-60-2

EINECS No.: 283-519-7

Molecular Formula: C17H19N3O

Appearance   Yellow brown Fine Powder

Solubility   Easy dissolving in water or enthanol

 

Tea polyphenols are chemical compounds, such as flavanoids and tannins, found naturally in tea.

 

 

Theaflavin

IUPAC name:

3,4,5-Trihydroxy-1,8-bis[(2R,3R)-3,5,7-trihydroxy-2-chromanyl]-6-benzo[7]annulenone

CAS No.: 4670-05-7

Formula: C29H24O12

Molar mass: 564.49 g/mol

Appearance: Red brown fine powder

Solubility   Easy dissolving in water or enthanol

 

Theaflavin (TF) and its derivatives, known collectively as theaflavins, are antioxidant polyphenols that are formed from the condensation of flavan-3-ols in tea leaves during the enzymatic oxidation (fermentation) of black tea.

 

Theaflavin-3-gallate, theaflavin-3'-gallate, theaflavin-3-3'-digallate are the principle of theaflavins. Theaflavins are types of thearubigins, and are therefore reddish in color. Epigallocatechin gallate (EGCG) will metabolize into some theaflavins in the liver.

 

What is Black Tea Extract Theaflavines?

 

Theaflavins are a group of molecules that are created from Green Tea Catechins when heat treatment damages the catechin molecule and they begin to resynthesize in various configurations; Theaflavins are the product of two catechin molecules binding together on the C ring, and similar to catechins can come in various gallated forms (whether there is gallic acid molecules bound to them or not).

 

Main functions of Black Tea Extract Theaflavine:

1. Prevent and Cure all kinds of tumor&Cancer

2. Regulate blood fat, anti-atherosclerosis

3. Anti-biosis, eliminate inflammation, Anti-Virus

4. Anti-oxidant effectively

Specification of Theaflavin

	TF20	TF40	TF50	TF60	Test Method
Theaflavin %	≥20.0	≥40.0	≥50.0	≥60.0	HPLC/UV
Ash %	≤1.0	≤2.0	≤2.0	≤2.0	800±25℃
Heavy Metal ppm	≤10	≤10	≤10	≤10
As ppm	≤2	≤2	≤2	≤2
Caffine %	≤4.0	≤4.0	≤4.0	≤4.0	HPLC
Mesh	80	80	80	80