不同分子量段蛹蟲草多糖的超濾分離及其對巨噬細胞釋放NO的影響
Separation by Ultrafiltration of Different Molecular Weight Fractions of Cordyceps militaris and Their Effect on Nitric Oxide Release from Macrophages
【作者】 朱麗娜; 周帥; 劉艷芳; 楊焱; 王世平; 王兆龍; 唐慶九;
【Author】 ZHU Lina1,2,ZHOU Shuai1,LIU Yanfang1,YANG Yan1, WANG Shiping2,WANG Zhaolong2,TANG Qingjiu1 1National Engineering Research Center of Edible Fungi;Shanghai Key Laboratory of Agricultural Genetics and Breeding;Institute of Edible Fungi,Shanghai Academy of Agricultural Sciences,Shanghai 201403,China; 2 School of Agriculture and Biology,Shanghai Jiao Tong University,Shanghai 200240,China
【機構】 農業部南方食用菌資源利用重點實驗室國家食用菌工程技術研究中心上海市農業遺傳育種重點開放實驗室上海市農業科學院食用菌研究所; 上海交通大學農業與生物學院;
【摘要】 用超濾法將蛹蟲草(Cordyceps militaris)子實體水提物分為<10kDa(PW1)、10~100kDa(PW2)、100~300kDa(PW3)、300~750kDa(PW4)和>750kDa(PW5)5個部分,并測定了這5部分的總糖含量、單糖組成及其對巨噬細胞釋放NO產量的影響。結果表明,蛹蟲草粗提物總得率(PW1~PW5之和)為38.35%,其中PW1得率最高(36.482%),其次是PW2(1.822%),PW3~PW5的得率都很低;各部分的總糖含量都較高(45.70%~60.48%)。單糖組成分析表明,各部分的多糖分別由3~6種單糖組成,其中甘露糖、葡萄糖、半乳糖為主要單糖。PW2~PW5均具有刺激巨噬細胞釋放NO的活性,且隨著濃度的增加活性增強。
【Abstract】 Hot water(100 ℃) extracts of Cordyceps militaris fruit bodies were separated by membrane ultrafiltration into five different molecular weight fractions as follows: PW1<10 kDa,PW2 10~100 kDa,PW3 100~ 300 kDa,PW4 300~750 kDa,PW5>750 kDa.The total yield of extract was 38.35%(based on the dry weight of starting material),and consisted of 36.428% PW1,1.822% PW2,and much smaller amounts of the three remaining fractions.Polysaccharide concentrations in the five fractions,as measured using the phe...
【關鍵詞】 蛹蟲草; 超慮分離; 分子量; NO產量; 巨噬細胞;
【Key words】 Cordyceps militaris; ultrafiltration; molecular weight fractions; nitric oxide production; macrophage;
【基金】 上海市科技興農重點攻關項目[編號:滬農科功字(2009)第2-2號]的部分研究內容
【分類號】S567.35