八种食用菌水溶性粗多糖的β-葡聚糖含量与体外免疫活性研究β-Glucan Content and In Vitro Immunological Activity of Crude Water-soluble Polysaccharide Fractions from Eight Edible Fungi
【作者】 李文; 杨焱; 周帅; 吴迪; 汪雯翰; 刘艳芳; 蒋俊; 张劲松;
【Author】 LI Wen,YANG Yan,ZHOU Shuai,WU Di,WANG Wenhan,LIU Yanfang,JIANG Jun,ZHANG Jingsong(Institute of Edible Fungi,Shanghai Academy of Agricultural Sciences;Key Laboratory of Edible Fungi Resources and Utilization(South),Ministry of Agriculture,P.R.China;National Engineering Research Center of Edible Fungi;National R&D Center for Edible Fungi Processing;Key Laboratory of Agricultural Genetics and Breeding of Shanghai,Shanghai 201403,China)
【机构】 上海市农业科学院食用菌研究所,农业部南方食用菌资源利用重点实验室,国家食用菌工程技术研究中心,国家食用菌加工技术研发分中心,上海市农业遗传育种重点开放实验室;
【摘要】 采用水提醇沉法提取了8种不同食用菌子实体的水溶性粗多糖,测定了样品中多糖、葡聚糖和β-葡聚糖的含量,结果表明,刺芹侧耳(Pleurotus eryngii)、毛头鬼伞(Coprinus comatus)、香菇(Lentinula edodes)和桑黄(Phellinus baumii)粗多糖中的多糖含量较高,香菇和姬松茸(Agaricus blazei)粗多糖中葡聚糖含量较高;猴头菌(Hericium erinaceus)、刺芹侧耳、香菇和姬松茸粗多糖中β-葡聚糖含量较高。采用截留分子量8000~12000透析袋纯化8种食用菌粗多糖,将纯化产物用于体外刺激巨噬细胞RAW264.7释放NO实验和脾淋巴细胞增殖实验,8种样品均能刺激巨噬细胞释放NO,其中香菇、刺芹侧耳和毛头鬼伞粗多糖在低浓度(200μg/mL)时,刺激巨噬细胞释放NO量即可达到40μmol/L以上,高浓度(500μg/mL)时高于阳性对照;体外脾淋巴细胞增殖实验结果显示,8种供试样品均能刺激脾淋巴细胞增殖,以香菇、刺芹侧耳和猴头菌粗多糖效果较好。实验结果证明这8种食用菌粗多糖均具有体外免疫活性。
【Abstract】 Crude polysaccharide fractions were prepared from the fruit bodies of eight different edible fungi(Hericium erinaceus,Pleurotus eryngii,Coprinus comatus,Lentinula edodes,Grifola frondosa,Phellinus baumii,Ganoderma lucidum,Agaricus blazei) by hot(100 ℃) water extraction followed by precipitation with ethanol,and total glucan and β-glucan levels were determined.Crude fractions from P.eryngii,C.comatus,L.edodes and P.baumii contained a higher percentage of polysaccharide,while L.edodes and A.blazei...
【关键词】 多糖; 葡聚糖; β-葡聚糖; 巨噬细胞; NO; 脾淋巴细胞增殖;
【Key words】 Polysaccharide; total glucan,β-glucan; macrophage; nitric oxide; splenocyte proliferation;
【基金】 上海市农委重点攻关项目[编号:沪农科攻字(2008)第8-2号]的部分研究内容
【分类号】S646