作　　者： ; ; ;

机构地区： 天津科技大学生物工程学院

出　　处： 《工业微生物》 2007年第3期20-23,共4页

摘　　要： 菌球的松散程度和菌球直径通过调节发酵培养基的初始pH和接种量来实现。实验结果证明直径越小,结构越松散的菌球可以获得高11α羟基坎利酮转化率。7L罐可以形成颗粒小,且松散的菌球。终了转化率92%,且节省了发酵时间。 Morphology was manipulated by means of inoculum level and initial pH value. The physiological state of mycelial pellets was estimated according to the growth kintics, pH value, and 11α hydroxy-canrenone conversion ratio. It was found that more efficient biotransformation was performed with small and fluffy pellets. The highest 11α hydroxy-canrenone conversion ratio of 92 % was achieved in 7L fermentor under the optimum conditions and the fermentation time was saved.

关 键 词： 赭曲霉 菌球 羟基坎利酮 转化率

领　　域： [理学] [理学]