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用热水抽提法从米糠中提取出多糖成分，经Ｓｅｐｈａｒｏｓｅ ＣＬ－６Ｂ层析柱收集单峰部分（Ｒｉｃｅ ＢｒａｎＰｏｌｙｓａｃｃｈａｒｉｄｅ，ＲＳ多糖）。对其理化性质及药理作用作了初步研究，发现ＲＳ多糖为α－呋喃葡聚糖，以α－１．４和α－１．６糖甙键连接，具有较好的免疫调节作用。
The polysaccharides were extracted from the rice bran using hot water extraction and the single peak fraction (Rice Bran Polysaccharide, RS polysaccharide) was collected on a Sepharose CL-6B column. A preliminary study on its physicochemical properties and pharmacological effects was conducted. It was found that RS polysaccharides are α-glucopyranosides, which are linked by α-1.4 and α-1.6 glycosylation bonds and have a good immunomodulatory effect.