摘要
以高产赤藓糖醇菌株RH-UV-L4-F9为研究对象,采用生物统计方法分别对该菌株的发酵培养基和培养条件进行优化。发酵培养基最佳配比为葡萄糖30%,酵母膏0.5%,脲1%,MgSO_4 0.05%;最适发酵条件为34℃,初始pH值6.0.摇床转数180r/min。最适条件下赤藓糖醇产量为157.4mg/mL。
Hyper-produced strain of erythritol was studied; the fermentation medium and conditions were optimized by the biotic statistical methods. The study showed that 30% of glucose, 0.5% of yeast paste, 1% of urea and 0.05% of MgSO4 were the better components of the culture medium. The optimum fermentation conditions were： temperature 34℃, initial pH 6.0, rotation speed 180 rpm and fermentation period of 6d. Under the above conditions, the yield of erythritol reaches 157. 4mg/ml. The results from the present study indicate that RH-UV-L4-F9 is a high yield strain on production of erythritol and present application opportunity in industry.
出处
《食品与发酵工业》
CAS
CSCD
北大核心
2007年第9期70-73,共4页
Food and Fermentation Industries
基金
吉林省科技发展计划项目(No.200302-04)
关键词
高渗假丝酵母
发酵条件
赤藓糖酵
Osmopilic yeast, fermentation conditions, ervthritol
