The invention relates to an extraction method of
cannabis sativa
polysaccharide and a product and application of
cannabis sativa
polysaccharide. The extraction method comprises the following steps: soaking a
cannabis sativa
raw material, then carrying out extracting, carrying out
solid-liquid separation, concentrating filtrate, and precipitating the concentrated solution in
alcohol to obtain the cannabis sativa
polysaccharide. The invention further provides a purification method of the cannabis sativa polysaccharide. The extraction, separation and
purification methods provided by the inventionare simple and easy to operate; and the prepared cannabis sativa polysaccharide is high in purity, has remarkable effects of removing
DPPH free radicals, resisting oxidation, whitening
skin, resisting aging, improving
immunity, regulating blood fat, resisting tumors and the like, and can be widely applied to
cosmetics, health care products, foods or medicines. Meanwhile, the raw materials of theextraction method comprise residues obtained after CBD and other
cannabinoid active ingredients are extracted from cannabis sativa flowers and leaves, so that the extraction method also provides a newstrategy for recycling the residues obtained after the CBD and other
cannabinoid active ingredients are extracted from the cannabis sativa flowers and leaves, waste is turned into wealth, and high-value recycling of resources is realized.