Fecha de publicación:
Fuente: WIPO "hemp"
The present application relates to a method for extracting hemp polysaccharides, a product obtained thereby and a use thereof. The extraction method comprises soaking and extracting a hemp raw material, filtering off solids from the extract solution, concentrating the filtrate, and precipitating the concentrate in an alcohol to obtain the hemp polysaccharides. The present application further provides a method for purifying the hemp polysaccharides. The extraction, separation and purification processes set forth in the present application are simple and easy to implement, and can prepare hemp polysaccharide in high purity. The hemp polysaccharides obtained have remarkable DPPH free radical elimination, anti-oxidation, whitening, anti-aging, immunity improvement, and blood lipid regulation properties and anti-tumor efficacy, and can be widely used in cosmetics, healthcare products, foods or drugs. Moreover, the raw materials for the extraction method include residues obtained after extracting cannabinoid active ingredients such as cannabidiol (CBD) from hemp flowers and leaves. Therefore, the extraction method provides a novel strategy for reutilization of the residues obtained after extracting cannabinoid active ingredients such as cannabidiol (CBD) from hemp flowers and leaves, thus transforming waste into valuable material and realizing high-value recycling of resources.