trans resveratrol 98% knotweed extract trans resveratrol

The difference between trans-resveratrol and resveratrol generally refers to the difference between trans-resveratrol and cis-resveratrol, and the difference between the two is not big. Although the molecular formula of the two is the same, the difference in the shape of folding and bending in space may lead to differences in physical and chemical properties or efficacy. Therefore, the difference is mainly in stability and physiological activity. Trans-resveratrol shows stronger stability and physiological activity than cis-resveratrol.

 

Resveratrol is a natural polyphenol plant antibiotic that is produced when plants are attacked by pathogens. Trans-resveratrol is the natural form of resveratrol, while cis-resveratrol is the isomerized form produced by plants under the influence of ultraviolet light, but the cis-isomer is highly photosensitized and easily decomposed, so it is difficult to extract and purify. Resveratrol in nature exists in the trans-isomer form, and the cis-isomer is very rare.

 

However, both are usually synthesized in grape leaves and grape skins and are bioactive ingredients in wine and grape juice. These substances are easily absorbed orally and have certain antioxidant, anti-inflammatory and cardiovascular protective effects, but it is difficult to achieve the above effects in terms of daily intake.

Trans-resveratrol (trans-3,4',5-trihydroxistilbene) is a natural polyphenolic plant defense factor. It has biological activities such as anti-Alzheimer's disease, anti-tumor, anti-inflammatory, anti-mutation, anti-bacterial and anti-fungal, and may be a good lead compound. Some of its analogs have also shown good biological activities in animal experiments, such as anti-inflammatory and anti-cancer activities.