Method and system for simultaneously extracting polysaccharides, polyphenols, sod and vc of rosa roxburghii tratt from rosa roxburghii tratt pomace

A method for simultaneously extracting polysaccharides of Rosa roxburghii Tratt, polyphenols of Rosa roxburghii Tratt, superoxide dismutase (SOD) of Rosa roxburghii Tratt, and Vc of Rosa roxburghii Tratt from Rosa roxburghii Tratt pomace, the method comprising:

• performing enzymatic hydrolysis treatment on the Rosa roxburghii Tratt pomace to obtain an enzymatic hydrolysis product;
• performing grinding treatment on the enzymatic hydrolysis product to obtain a grinding slurry;
• performing ultrasonic treatment on the grinding slurry to obtain an ultrasonic treatment product;
• performing centrifugation treatment on the ultrasonic treatment product and collecting the supernatant;
• performing, using a ceramic membrane, ultrafiltration treatment on the supernatant to obtain a first permeate and a first retentate, the first retentate containing the polysaccharides of Rosa roxburghii Tratt;
• treating the first permeate with a macroporous adsorption resin to obtain a deastringent liquid of Rosa roxburghii Tratt and a used macroporous adsorption resin;
• performing, using ethanol solution, elution treatment on the used macroporous adsorption resin, and evaporating and concentrating the eluate, to obtain the polyphenols of Rosa roxburghii Tratt;
• performing, using a spiral-wound membrane, ultrafiltration treatment on the deastringent liquid of Rosa roxburghii Tratt to obtain a second permeate and a second retentate, the second retentate containing the SOD of Rosa roxburghii Tratt;
• and
• performing reverse osmosis treatment on the second permeate to collect a third retentate, the third retentate containing the Vc.