Biotechnology Bulletin ›› 2015, Vol. 31 ›› Issue (3): 127-134.doi: 10.13560/j.cnki.biotech.bull.1985.2015.04.018

Previous Articles     Next Articles

Screening and Breeding of a Strain for High Yield of Succinic Acid

Wang Le Yu Guanghai Yang Shuoye Wang Weiwei Hui Ming   

  1. (College of Biological Engineering,Henan University of Technology,Zhengzhou 450001)
  • Received:2014-08-04 Online:2015-03-16 Published:2015-03-16

Abstract: It was to improve the production of succinic acid. After the primary and secondary screening, a strain with high-yield of succinic acid was isolated from the soil. The succinic acid production of 34.45% was determined by the high performance liquid chromatography(HPLC)after the fermentation. Later, the UV mutagenic breeding of strains has been performed, resulting in the succinic acid production of 50.30% which increased by 46% in the substrate of glucose concentration of 100 g/L with the residual sugar lower than 10 g/L. After the determinations of morphological characteristics, physiological and biochemical index and 16S rDNA sequence analysis, the strain was identified as actinobacillus.

Key words: succinic acid, high-producing strain, screen, mutagenesis, Actinobacillus