活性干酵母SOD摇瓶发酵条件的研究  

Fermentation conditions of superoxide dismutase from active dry yeast

作　　者：王岁楼[1] 张鑫[1] 张平之[1] 章银良[1] 郭永强 

机构地区：[1]郑州轻工业学院食品与生物工程系,郑州450002

出　　处：《工业微生物》2000年第3期36-39,共4页Industrial Microbiology

基　　金：河南省自然科学基金项目的部分工作!(豫科 9840 3330 0号 )

摘　　要：研究了营养与环境条件对耐高温酒精活性干酵母 (TH -AADY)SOD摇瓶发酵的影响。实验结果表明 ,初糖浓度、金属离子、pH值、通气量 (装液量 )和培养时间等均对AADY摇瓶发酵的生物量和SOD含量有较大的影响。在初步优化的发酵条件下 ,细胞生物量为 39.6 g/L ,菌体SOD含量为 1 948U/g ,发酵液产酶能力为7.7万U/L。The fermentation conditions of superoxide dismutase(SOD) from alcohol active dry yeast (AADY) were studied in the flask .The results showed that the nutrition and culture conditions,such as initial glucose concentration,the kinds and content of metal ions and culture time,initial pH value,as well as the volume of mediun in shaking flask,etc.had a great influence on the SOD content and biomass.Under the initial optimum conditions,the yeast biomass,SOD content and SOD yield were 39.6g/L,1948 u/g and 7.7×10 4U/L respectively.

关 键 词：活性干酵母 SOD 摇瓶发酵 培养条件 

分 类 号：TQ920.1[轻工技术与工程—发酵工程]