
Description
Latin Name: Polygonum Cuspidatum Sieb.
CAS No.: 501-36-0
Molecular Formula: C14H12O3
Active ingredients: Resveratrol
Specification: Resveratrol 20% 50%, 85% 98% and 99%
Use Part: Root
Appearance: Light Yellow to White Fine Powder
Mesh size:80 Mesh
Test Method: HPLC
Product Introduction
Jintai optimized the extraction process of Polygonum Cugpidatum Extract Powder to effectively improve the purity of resveratrol. Resveratrol is an antitoxin secreted by plants in harsh environments or when they are attacked by pathogens. It protects against fungal infections. It has antioxidant properties. The extract has been increasingly valued in various fields due to its unique biological activity.

Production Process
In order to effectively extract resveratrol from Polygonum cuspidatum, ethanol reflux method and ultrasonic method were used for research. The preliminary purification by solvent (ethyl acetate) extraction and the screening of adsorption resin purification conditions were carried out. The effects of different single factors on the extraction of resveratrol from Polygonum cuspidatum were investigated. And the orthogonal method was used to optimize the extraction process to determine the best extraction process.
Result: The extraction rate of resveratrol was 1.30% under the optimized extraction conditions of ethanol reflux method. The extraction rate was 1.36% under the optimal extraction conditions of ultrasonic-assisted method. Resveratrol with a purity of 74.98% was obtained by the initial purification of solvent extraction by ultrasonic-assisted process. After separation and purification by macroporous resin, the purity was 89.07% and the yield was 95.09%. After extraction and adsorption by macroporous resin, the purity of pure bulk resveratrol was significantly improved.
Certificate of Analysis
Analysis | Specification | Results |
Assay(HPLC) | Resveratrol ≥98% | 98.31% |
Appearance | Kind of white fine powder | Complies |
Ash | ≤5.0% | 1.82% |
Moisture | ≤5.0% | 2.1% |
Pesticides | Negative | Complies |
Heavy metals | ≤10ppm | Complies |
Pb | ≤1.0ppm | Complies |
As | ≤1.0ppm | Complies |
Hg | ≤0.2ppm | Complies |
Odor | Characteristic | Complies |
Particle size | 100% through 80 mesh | Complies |
Microbioiogical: | ||
Total of bacteria | ≤1000cfu/g | Complies |
Fungi | ≤100cfu/g | Complies |
Salmgosella | Negative | Complies |
Coli | Negative | Complies |
Storage Store in cool & dry place. Do not freeze. Keep away from strong light and heat. Shelf life 2 years when properly stored | ||
Application
1. In recent years, various biological functions of Polygonum Cugpidatum Extract Powder have been used in animal production as a new type of feed additive. And has achieved good results.
Knotweed extract resveratrol can improve growth performance, enhance immunity, improve animal product quality, and can improve production efficiency.
2. It has been widely used in resveratrol supplement and medicine field;
3. It has been widely used in various fields such as food additives, beverages and cosmetics.
Package & Delivery

Our Service

Company & Factory
Shaanxi Jintai Bio is an enterprise specializing in the purification and processing of plant active ingredients. Our company has more than 20 years production experience. The company integrates production, sales and service, with natural plant extracts, fruit and vegetable powder, and freeze-dried powder as its leading products. We continue to pay attention to and serve human health from a global perspective, and create high-quality products in the field of green health.

Providing Polygonum Cugpidatum Extract Powder for free sample. For any query or further information, welcome contact us with an email to sales01@sxjtsw.com or submit your requirement in the bottom form, we always provide you good service.
WeChat: 18049213229
Tel: +86-018049213229
+86-029-88252883
No. 11 South Tangyan Road. Xi'an 710065, China