The purified polysaccharides were further isolated by Toyopearl HW-75 gel filtration column chromatography and two fractions were obtained successfully, named as XG1 and XG2. The yields of the two fractions are 0.83%, 1.20%, respectively.

• 脱色液浓缩醇沉；沉淀以无水乙醇洗涤；真空干燥；再以蒸馏水加热溶解；进行Toyopearl HW-75柱层析；蒸馏水洗脱收集；合并糖峰部分；分别冻干后得到两个多糖组分XG1和XG2；收率分别为0.；83%25；1