Resveratrol 1% HPLC Grape Fruit Seed Extract Red Vitis Vinifera Powder

Natural Antioxidant Activity Natural Antioxidant Activity Grape Skin Extract Resveratrol 1%(HPLC)

What is Grape Skin Extract Resveratrol ?

Resveratrol is a chemical mostly found in red grapes and products made from these grapes (wine, juice). It may be helpful for hay fever and weight loss.

Resveratrol might have many effects in the body, including expanding blood vessels and reducing blood clotting. It may also decrease pain and swelling, reduce levels of sugar in the blood, and help the body fight against disease.

Resveratrol is most commonly used for high cholesterol, cancer, heart disease, and many other conditions. But there is no strong evidence to support resveratrol for any use.

Specification:

Function:

Application:

1. Drug development
2. Cosmetic development
3. Health product development

Test Method:

HPLC method

This method determines the content of each monomer, oligomer, and homopolymer in the extract. However, due to the limitations of the control and the analytical means, only the content of monomers and some oligomers in grape seed extracts can be determined. In practice, it is sufficient to determine the content of only those monomers. The main monomers in grape seed extracts are catechin, epicatechin, gallic acid, and epicatechin gallate. [5]

The content of monomers in grape seed extracts is generally around 10.0% and can reach up to 30.0%. Due to the complexity of grape seed extract components, it is generally difficult to completely separate multiple monomers by the HPLC method if the sample is not pretreated. Therefore, the extracts need to be pretreated to remove the polymers and improve the monomer content before injection. Commonly used pretreatment methods are silica gel column chromatography, SephadexLH- 20, Sephadex G25, Toyopeah TSK HW40, and other column chromatography methods. The sample can also be pretreated by thin-layer chromatography, generally using toluene: acetone: acetic acid = 3 : 3: 1 (V/V/V) as the unfolding agent.

FAQ:

1. Who are we?
We are based in Qingdao, China, start from 2004,sell to Domestic Market(27.00%),North America(25.00%),Northern Europe(20.00%),South America(18.00%),Western Europe(10.00%). There are a total of about 51-100 people in our office.

2. How can we guarantee the quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3. What can you buy from us?
We are main Resveratrol, Polygonum Cuspidatum Extract, Emodin, Physcion, Polydatin

4. Why should you buy from us, not from other suppliers?
1. The experienced senior engineering and technical experts for R&D 2. The first-class production equipment with the latest technology and testing methods. 3.A massive and integrated production chain which combined with a plantation, Scientific R&D, production

5. what services can we provide?
Accepted Delivery Terms: FOB,CIF,EXW,DDU,Express Delivery；
Accepted Payment Currency:USD,CNY;
Accepted Payment Type: T/T,Credit Card,PayPal,Western Union;
Language Spoken:English,Chinese