摘要
以甘油为底物,利用克雷伯氏菌发酵生产1,3-丙二醇的实验中,考察了初始甘油浓度、温度、pH、通气策略等发酵条件对1,3-PDO产量的影响。实验结果表明:积累1,3-PDO的适合条件为:甘油的初始浓度为40g/L、发酵温度37℃、pH7.0、0.5V/V·min的通气量,发酵30h,反应液中PDO的产量可达57.63g/L。
The effects of glycerol concentrations,temperature,pH and aeration strategies were investigated on the production of 1,3-propanediol with glycerol as substrate by Klebsiella pneumoniae. The results showed that the most suitable condition of accumulating 1,3-PDO were glycerol concentrations 40g/L,temperatures37℃,pH7. 0 and aeration rate 0. 5V/V·min,fermentation time 30h,respectively. The PDO concentration in the fermentation broth reached 57. 63g/L.
出处
《食品工业科技》
CAS
CSCD
北大核心
2011年第12期136-138,141,共4页
Science and Technology of Food Industry
基金
江西教育厅计划项目资助(GJJ10603)
关键词
生物合成
1
3-丙二醇
发酵
工艺
biosynthesis
1
3-propanediol
fermentation
technique
