脱胚玉米粉原料发酵生产柠檬酸的研究  

Fermentation of Citric Acid Using Corn Meal as Material

作　　者：蔡其海 

机构地区：[1]中粮生物化学(安徽)股份有限公司,安徽蚌埠233010

出　　处：《安徽化工》2013年第3期31-32,36,共3页Anhui Chemical Industry

摘　　要：以干法脱胚玉米粉为原料进行柠檬酸发酵，脱胚玉米粉液化pH值控制为5．8～6．0，液化时间90min，500L发酵罐发酵周期为72h，产酸可达14．5％，残总糖≤1．2％，糖酸转化率≥96．6％。The corn meal which was degerminated by dry method was used as raw material for citric acid fermentation and the pH for the degerm meal liquefaction is between 5.8-6.0, for 90 minutes. Total period of the process in 500L fermentor is 72 hours, the acidity can reach up to 14.5%（w/v）, total sugar residue is not more than 1.2%（w/v）, and the version rate of glucose to citric acid is not lower than 96.6%.

关 键 词：干法脱胚 玉米粉 柠檬酸 黑曲霉 

分 类 号：TQ921.1[轻工技术与工程—发酵工程]