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Ke-quan Chen,Zhen Wang,Wen Xiao,Alie Zhang,Hanxiao Ying,Ping-Kai Ouyang 한국화학공학회 2016 Korean Journal of Chemical Engineering Vol.33 No.10
Actinobacillus succinogenes NJ113 is capable of microaerobic fermentation, which offers the possibility of a novel type of pyruvic acid production. A dissolved oxygen environment with stirring at 300 rpm was a key factor in the fermentative production of a maximum concentration of pyruvic acid. Potassium carbonate (K2CO3) was found to have a role in promoting pyruvic acid production, influencing the concentration of pyruvic acid and production of the by-product succinic acid. The final titer of pyruvic acid production was 36.8±0.1 g L−1 with an overall yield of 0.639±0.056 g g−1 glucose and 3.12±0.03mmol g−1 dry cell weight h−1. Significance and impact of the study: This study is the first to illustrate the advantage of using Actinobacillus succinogenes NJ113 with no genetic modification under microaerobic conditions for the production of pyruvic acid.