螺旋藻粘多糖的分离及其免疫学作用

螺旋藻含有许多对人体有益的元素，其中有些是微量元素。其蛋白质含量高达64．6％，且含大量人体必需氨基酸。螺旋藻经80℃热水提取，Sevag法去蛋白，透析，95％乙醇沉淀，脱水干燥，得灰白色粉多糖．经SephadexG100柱层析，真空干燥得白色粉末状多糖精品，蒽酮法测得其多糖含量为77．63％，其多糖精品能够非常明显地促进小鼠脾细胞对丝裂原ConA的增殖反应，提高小鼠机体免疫功能。实验结果表明：螺旋藻多糖能明显提高受5Gyγ-照射小鼠的脾重量、脾淋巴细胞数和脾淋巴细胞转化功能。

Isolation and Immunological Activity of Polysaccharides from Spirulina Platensis

Spirulina platensis contained many helpful elements for human. Some of them were trace el ements. Protein content was 64. 6 %. There were many human essential amino acids. The polysaccha ride of spirulina platensis(PSP) was isolated with hot water and further purified with Sephadex G 100. Sugar being 77.63 %, it could obviously improve spleen weight lymphocyte number and, lymphocyte transformation in spleen of mice irradiated by 5 Gy.