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.
出处
《工业微生物》
CAS
CSCD
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 )
关键词
活性干酵母
SOD
摇瓶发酵
培养条件
active dry yeast
superoxide dismutase (SOD)
fermentation in the flask
culture conditions
