The invention discloses a process for continuously extracting a cherokee rose fruit
polysaccharide fluid extract through tank group ultrasonic-assisted negative pressure
cavitation dynamic countercurrent, which comprises the following steps: crushing a cherokee rose fruit medicinal material,
degreasing, extracting with 80%
ethanol, extracting by a tank group ultrasonic negative pressure
cavitation dynamic countercurrent circulation method, concentrating under reduced pressure, deproteinizing, decolorizing, dialyzing, precipitating with
alcohol, washing, redissolving with pure water and concentrating. The cherokee rose fruit
polysaccharide fluid extract is obtained. According to the method, a tank group ultrasonic-assisted negative-pressure
cavitation dynamic countercurrent extraction mode is adopted, tank group, ultrasonic and negative-pressure parameters are optimized, and factors such as extraction temperature, extraction time and material-
liquid ratio of fructus rosae laevigatae medicinal materials are optimized, so that
traditional Chinese medicine efficacy substances of fructus rosae laevigatae are extracted to the greatest extent, and the problems of long time consumption and loss of effective components in a conventional method are solved; the
polysaccharide yield is high; by further controlling the
degreasing treatment of the medicinal materials, the extraction process of 80%
ethanol and the preparation of the decolorizing agent, the extraction rate and the
degreasing rate of the polysaccharide can be effectively improved, and the decolorizing effect is improved.