Method for extracting Lactarius Hatsudake Tanaka polysaccharide compound

A method for extracting a Lactarius hatsudake Tanaka polysaccharide compound, comprising:

• carrying out freeze-drying, pulverization, degreasing, water extraction, deproteinization, alcohol precipitation, and resin adsorption in sequence on Lactarius hatsudake Tanaka fruiting bodies to obtain a Lactarius hatsudake Tanaka refined polysaccharide mixture, wherein the resin adsorption comprises:
• dissolving a solid obtained from the alcohol precipitation in water, then adding activated JK008 macroporous resin, stirring and adsorbing a mixture for 6-12 h, after solid-liquid separation, centrifuging for a liquid to remove insolubles, followed by reduced-pressure distillation, secondary alcohol precipitation, and freeze-drying to obtain the Lactarius hatsudake Tanaka refined polysaccharide mixture;
• to the Lactarius hatsudake Tanaka refined polysaccharide mixture, adding anhydrous ethanol dropwise to perform alcohol precipitation purification, and gradually collecting precipitates with an ethanol volume concentration of 10%, 40%, 60%, and 80%, to obtain Lactarius hatsudake Tanaka polysaccharide-10/40/60/80 active ingredients, wherein a concentration of the Lactarius hatsudake Tanaka refined polysaccharide mixture is less than 5 mg/mL;
• and
• performing preparation via liquid chromatography on the Lactarius hatsudake Tanaka polysaccharide-10/40/60/80 active ingredients respectively, followed by dialysis and post-treatment to obtain Lactarius hatsudake Tanaka polysaccharide LHP-1, Lactarius hatsudake Tanaka polysaccharide LHP-2, Lactarius hatsudake Tanaka polysaccharide LHP-3, Lactarius hatsudake Tanaka polysaccharide LHP-4, and Lactarius hatsudake Tanaka polysaccharide LHP-5, wherein a condition of the preparation via liquid chromatography comprises:
• an injection volume is 1 mL, a chromatography column is SUGAR-BRT-102 gel chromatography column, a column temperature is 35° C., a column length is 28 cm, a flow rate is 1.3 mL/min, and a mobile phase is 0.2 mol/L aqueous sodium chloride solution;
• a structural formula of the Lactarius hatsudake Tanaka polysaccharide LHP-1 is:
• a structural formula of the Lactarius hatsudake Tanaka polysaccharide LHP-2 is:
• a structural formula of the Lactarius hatsudake Tanaka polysaccharide LHP-3 is:
• a structural formula of the Lactarius hatsudake Tanaka polysaccharide LHP-4 is:
• a structural formula of the Lactarius hatsudake Tanaka polysaccharide LHP-5 is: