The invention discloses a Chinese angelica
polysaccharide extraction method. The Chinese angelica
polysaccharide extraction method comprises following steps: 1, fresh Chinese angelica roots are subjected to cold squeezing; 2, obtained Chinese angelica juice is subjected to 8 to 12h of
refrigeration in a refrigerator at 0 to 20 DEG C, and is subjected to unfreezing in water bath at 40 to 50 DEG C, the above process is repeated for 2 to 3 times, a solution obtained through
refrigeration and unfreezing
processing is diluted with water, uniform shaking is carried out, filtering is carried out, and
medicine residue is removed so as to obtain a filtrate; 3, the filtrate is subjected to
centrifugation at 4000 to 8000r / min, a supernatant is collected, and is subjected to
centrifugation at 4000 to 8000r / min, an obtained supernatant is introduced into
centrifuge tubes, 4 to 5 times of absolute ethyl
alcohol is added,
refrigeration is carried out in a refrigerator at 0 to 4 DEG C overnight, when white floccules
precipitation is observed,
centrifugation is carried out at 4000 to 8000r / min, an obtained supernatant is removed, an obtained precipitate is washed with a 80%
ethanol solution, the precipitate is dissolved in 40 to 50 DEG C hot water so as to obtain a Chinese angelica
polysaccharide solution. The Chinese angelica polysaccharide extraction method is capable of increasing polysaccharide extraction rate, and the technology steps are simple.