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In relation to this article, we declare that there is no conflict of interest.
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Received November 26, 2015
Accepted June 20, 2016
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Potential industrial application of Actinobacillus succinogenes NJ113 for pyruvic acid production by microaerobic fermentation

State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, P. R. China
kqchen@njtech.edu.cn
Korean Journal of Chemical Engineering, October 2016, 33(10), 2908-2914(7), 10.1007/s11814-016-0168-5
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Abstract

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_x000D_ 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.

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