畜牧与饲料科学 ›› 2013, Vol. 34 ›› Issue (7): 3-3.doi: 10.12160/j.issn.1672-5190.2013.07.003

• 基础科学 • 上一篇    下一篇

混合氮源对以木薯为原料发酵生产柠檬酸的影响

杨为华   

  1. 安徽丰原集团有限公司,安徽蚌埠233010
  • 出版日期:2013-07-20 发布日期:2013-07-20
  • 通讯作者: 杨为华
  • 作者简介:杨为华(1979-),男,工程师,主要从事生物化工的研究与开发工作.

Effects of Mixed Nitrogen Sources on Fermentation Producing Citric Acid with Cassava as Raw Materials

YANG Wei-hua(Anhui BBCA Group Co., Ltd., Bengbu 233010, China)   

  • Online:2013-07-20 Published:2013-07-20

摘要: 以木薯液化清液作为发酵底糖,按3∶1的比例添加玉米浆和豆饼粉的混合物作为补充氮源,配制成蛋白质含量为0.6%(m/m)的发酵培养基,在该条件下进行柠檬酸发酵,发酵周期60 h,产酸16.8%(m/v),残总糖0.8%(m/v),转化率98.8%.

Abstract: Cassava liquefied supernatant was used as sugar, and corn syrup and soybean meal were added as nitrogen for citric acid fermentation according to the proportion of 3:1 to prepare the fermentation medium with total protein content of 0.6% (m/m). Under the conditions, the fermentation cycle was 60 h; the ratio of citric acid was 16.8% (m/v); the total sugar residues was 0.8% (m/v); and the ratio of transforming was 98.8%.

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