冬虫夏草液体发酵产胞外多糖的实验条件.pdfVIP

282 大 连 工 业 大 学 学 报 Vol.28 No.2 20 0 9 3 Journal of Dalian Polytechnic University Mar. 20 0 9 2009) 冬虫夏草液体发酵产胞外多糖的实验条件 1 2 1 1 1 郎 久义 , 齐 旭阳, 侯 英 雪, 赵 树 全, 江 国托 ( 1.大连工业大学 生物与食品工程学院, 辽宁 大连 116034; 2.大连三仪动物药品有限公司, 辽宁 大连 116036 ) : ,: 30 g/L, 20 g/ L, MgSO 2 g/L, KH PO 4 g/ L,pH 7. 0, 10 , 24 , 140 r/min 4 2 4 ,3.928g/ L, : ; ; : TS218;S567. 3 : A Production of exopolysaccharides by Cordy cep s sinensis in liquid culture 1 2 1 1 1 LANG Jiuy i , QI Xuyang , HOU Yingxue , ZHAO Shuquan JIANG Guotuo ( 1. School o Biological Food Engineering, Dalian Polytechnic Univ ersity, Dalian 116034, China; 2. Dalian Sanyi Creat ure Drug Products Limited Company , Dalian 116036, Chi na ) Abstract: Exopolysaccharide was produced by cordyceps militaris in the liquid culture.The optimum conditions were as follows: glucose 30 g/L, bean cake 20 g/ L, MgSO4 2 g/ L, KH2PO4 4 g/ L, the original pH is 7.0, inoculum concentration is 10 , temperature 24 and rotatory speed 140r/ min. In this condition, the production of exopolysaccharidesreachedto 3. 928g/L andtheproductioncycles can be shortened effectively. Key words: Cor dy cep s si ne ns is ; polysaccharide; liquid fermentation 0 引 言 !, [9] , (Cor dy cep s s i ne ns is ), , [ 10] , [ 11]