Preparation method of trichosanthes polysaccharide

The invention discloses a preparation method of trichosanthes polysaccharide. The preparation method includes: deseeding and then mashing fresh trichosanthes, and performing enzymolysis, separation, decoloring, ultrafiltration, alcohol precipitation and separation to obtain a precipitate which is crude polysaccharide; subjecting the crude polysaccharide to water dissolution, degreasing, deproteinization, decoloring, alcohol precipitation, freeze-drying and smashing to obtain trichosanthes polysaccharide. Biological extraction is performed on active ingredients of trichosanthes, and conventional polysaccharide extraction technology and advanced bioengineering technology are combined, so that the process is advanced, energy consumption is lowered, a product contains higher than 95% of polysaccharide, and an effective approach is provided for deep processing of trichosanthes. 本发明公开了种瓜蒌多糖的制备方法。将新鲜瓜蒌去子后捣碎，经酶解、分离、脱色、超滤、醇沉、分离得到沉淀物为粗多糖；再对粗多糖的处理经过水溶、脱脂、脱蛋白、脱色、醇沉、冷冻干燥、粉碎后得到瓜蒌多糖。本发明通过对瓜蒌进行有效功效的生物提取，将传统提取的多糖技术与先进的生物工程技术结