%0 Journal Article
%T PHYSICAL AND CHEMICAL PROPERTIES AND STRUCTURE OF EXOPOLYSACCHARIDE OF ACREMONIUM TERRICOLA<br>地生枝顶孢胞外多糖的理化性质和结构初步分析
%A YU Chun-Xiu LI Chun-Ru PENG Fan
%A FAN Mei-Zhen
%A <br>于春秀
%A 李春如
%A 彭凡
%A 樊美珍
%J 菌物学报
%D 2004
%I 
%X In the paper, physical and chemical properties and primary structure of exopolysaccharide EPS-Ia from fermentation filtrate of Acremonium terricola strain RCEF0260 were studied. The average molecular weight of EPS-Ia determined by gel chromatography was 416kD. EPS-Ia was composed of D-Man, D-Glu, D-Gal, D-Ara and D-Xyl in molar ratio of 4.46:0.24:2.38:0.90:0.19 determined by gas chromatography. EPS-Ia contains glucuronic acid, sulphate and protein, which are 27.4%, 0.92% and 2.23% respectively. The infrared spectrum indicated that glucosidal linkage in EPS-Ia was pyranose. The assay of dilute alkali suggested that the polysaccharide chain is linked to peptide chain through N-glucosidal bond. Petriodate oxidation and Smith degradation studies showed that EPS-Ia was composed of 1-3, 1-6 and 1-2 linked glucosyl bond.
%K Fungus polysaccharide
%K primary structure
%K Cordyceps<br>真菌多糖
%K 一级结构
%K 虫草
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=CA9F815FCB0F62294C4266BB6F902ACB&aid=29319EB00C5A4C2A&yid=D0E58B75BFD8E51C&vid=EA389574707BDED3&iid=E158A972A605785F&sid=2A2AA8B7E19F0DF7&eid=A726E84831FE609B&journal_id=1672-6472&journal_name=菌物学报&referenced_num=0&reference_num=16