Stilbene

Stilbene compound is the general term for a class of materials having a homogeneous styrene parent nucleus or its polymers. The content of these substances is relatively low in the normal tissues of the plant community. The monohydroxyl-diphenol hydroxyastragalus compounds are mainly found in the parenchyma cells of the xylem of the plant tissue. The total content of astragalus in the stimulated tissue increases significantly when the plant is infected by bacteria or external stimuli. Therefore, natural astragalus compounds may be the stress products of plants. Resveratrol, for example, is considered a plant antitoxin produced when plants are attacked by pathogens and the environment deteriorates.Astragalus compounds have extensive biological activities. In addition to the known antibacterial effect, some astragalus compounds have been found to reduce blood lipids in recent years. Some astragalus have liver protection, dilated capillaries to improve microcirculation, dilated coronary vessels, hypotension, anti-allergy, inhibition of platelet aggregation and anti-tumor effects. The biological activity of astragalus has aroused people's keen interest.