| Customization: | Available |
|---|---|
| Certification: | ISO, FDA, HACCP |
| Assay Method: | HPLC, UV |
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|
Product name |
Theaflavin |
|
CAS No |
4670-05-7 |
|
Molecular Formula |
C29H24O9 |
|
Molecular Weight |
516.5 |
| Puirty | 10%-40% |
| Source | Black tea extract |
| Appearance |
Orange powder |
| Sample |
Available |
| More specifications just contact us freely. | |
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 (sometimes erroneously referred to as fermentation) of black tea. Theaflavin-3-gallate, theaflavin-3'-gallate, and theaflavin-3-3'-digallate are the main theaflavins. Theaflavins are types of thearubigins, and are therefore reddish in color. Epigallocatechin gallate (EGCG) will metabolize into some theaflavins in the liver
1.Application in food field : Tea polyphenols as a natural antioxidant widely application in food industry field ;used in all kinds of alcohol drink
2.As natural additive used in cosmetics and daily necessities field: Have strong antibacterial function and inhibitory enzyme action.
| Xi'an Hench Biotechnology Co;Ltd | Certificate of Analysis | ||||
| Product Name: | Theaflavin | Batch No.: | 20190927 | ||
| Assy: | 10% | Quantity: | 500kg | ||
| Manufacture Date: | Dec. 27, 2019 | Expiry Date: | Dec. 26, 2020 | ||
| Test items | Specifications | Test Results | |||
| Physical & chemical Data | |||||
| Color | Red brown Powder | Complies | |||
| Appearance | Powder | Complies | |||
| Analytical Quality | |||||
| Assay | ≥1.5% | 1.52% | |||
| Loss on Drying | ≤8.0 % | 2.31% | |||
| Ash | ≤5.0 % | 1.25% | |||
| Contaminants | |||||
| Lead (Pb) | ≤3ppm | Complies | |||
| Arsenic (As) | ≤1ppm | Complies | |||
| Microbiological | |||||
| Total Plate count | Max.1000CFU/g | Complies | |||
| Yeast & Moulds | Max.100CFU/g | Complies | |||
| E-Coli | Negative in 10g | Negative | |||
| Shelf Life: | 24 months in the unopened original container | ||||
| Storage: | It shall be stored at ambient temperature, dry conditions, protected from heat, light and oxygen. | ||||
| Tested by: | Andy Lu | Approved by: | Jerry Yo | ||
1. Can I buy a sample for evaluation?
Yes. There are no uniform standards for different products. Please consult the salesman for details
2. How do I pay?
We accept wire transfer and western union.
3. How much is the freight?
Transport costs vary according to the mode of transport and the country. Shipping costs to western European countries are generally slightly higher than to the United States. Freight to Asia is slightly lower than to the United States.
4. Does the freight include local taxes, import duties and other import-related charges?
The freight does not include any tax. Local taxes, import duties, customs clearance, or any other import-related charges are levied by your government and the buyer is responsible for these import-related charges. Please check with your local customs for more information.
5. What transportation options do I have?
As we strive to provide value and flexibility to our customers, we offer different options to deliver your order.
1g-100kg, (EMS/UPS/FedEx)
Over 100kg, air or sea
6. How long is the lead time?
Small orders will be shipped in 3 days and large orders in 7-10 days.
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