The Effect of Protectants and pH Changes on the Cellular Growth and Succinic Acid Yield of Mannheimia succiniciproducens LPK7

  • Oh, Young Hoon
  • Oh, In Jae
  • Jung, Changkyou
  • Lee, Sang Yup
  • Lee, Jinwon
Citations

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초록

The harmful effects of succinic acid and oxidative stress on cell growth were determined during batch fermentation with Mannheimia succiniciproducens LPK7, a powerful succinic acid-producing strain, and conditions were optimized to minimize these effects. In terms of toxicity, the cell concentration decreased as the concentration of succinic acid increased. By changing the pH from 6.5 to 7 during fermentation, the cell concentration increased by about 10%, and the level of succinic acid production was 6% higher than that of the control. In addition, by introducing protectants, the cell concentration increased by about 10%, and the level of succinic acid produced was increased by 3%.

키워드

Mannheimia succiniciproducens LPK7succinic acidprotectants (biotin, glutathione, trehalose)cellular growthoxidative stressACTINOBACILLUS-SUCCINOGENESANAEROBIOSPIRILLUM-SUCCINICIPRODUCENSPHOSPHOENOLPYRUVATE CARBOXYKINASEFERMENTATIONBACTERIUM
제목
The Effect of Protectants and pH Changes on the Cellular Growth and Succinic Acid Yield of Mannheimia succiniciproducens LPK7
저자
Oh, Young HoonOh, In JaeJung, ChangkyouLee, Sang YupLee, Jinwon
DOI
10.4014/jmb.1003.03032
발행일
2010-12
유형
Article
저널명
Journal of Microbiology and Biotechnology
20
12
페이지
1677 ~ 1680