八種食用菌水溶性粗多糖的β-葡聚糖含量與體外免疫活性研究β-Glucan Content and In Vitro Immunological Activity of Crude Water-soluble Polysaccharide Fractions from Eight Edible Fungi
【作者】 李文; 楊焱; 周帥; 吳迪; 汪雯翰; 劉艷芳; 蔣俊; 張勁松;
【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)
【機構】 上海市農業科學院食用菌研究所,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,國家食用菌加工技術研發分中心,上海市農業遺傳育種重點開放實驗室;
【摘要】 采用水提醇沉法提取了8種不同食用菌子實體的水溶性粗多糖,測定了樣品中多糖、葡聚糖和β-葡聚糖的含量,結果表明,刺芹側耳(Pleurotus eryngii)、毛頭鬼傘(Coprinus comatus)、香菇(Lentinula edodes)和桑黃(Phellinus baumii)粗多糖中的多糖含量較高,香菇和姬松茸(Agaricus blazei)粗多糖中葡聚糖含量較高;猴頭菌(Hericium erinaceus)、刺芹側耳、香菇和姬松茸粗多糖中β-葡聚糖含量較高。采用截留分子量8000~12000透析袋純化8種食用菌粗多糖,將純化產物用于體外刺激巨噬細胞RAW264.7釋放NO實驗和脾淋巴細胞增殖實驗,8種樣品均能刺激巨噬細胞釋放NO,其中香菇、刺芹側耳和毛頭鬼傘粗多糖在低濃度(200μg/mL)時,刺激巨噬細胞釋放NO量即可達到40μmol/L以上,高濃度(500μg/mL)時高于陽性對照;體外脾淋巴細胞增殖實驗結果顯示,8種供試樣品均能刺激脾淋巴細胞增殖,以香菇、刺芹側耳和猴頭菌粗多糖效果較好。實驗結果證明這8種食用菌粗多糖均具有體外免疫活性。
【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...
【關鍵詞】 多糖; 葡聚糖; β-葡聚糖; 巨噬細胞; NO; 脾淋巴細胞增殖;
【Key words】 Polysaccharide; total glucan,β-glucan; macrophage; nitric oxide; splenocyte proliferation;
【基金】 上海市農委重點攻關項目[編號:滬農科攻字(2008)第8-2號]的部分研究內容
【分類號】S646