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. 2014 Jul 28;3:387. doi: 10.1186/2193-1801-3-387

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© Ujor et al.; licensee Springer. 2014

This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited.

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The levels of acetate and butyrate and pH profiles of cultures of C. acetobutylicum and C. beijerinckii grown on milk powder medium. (A) Acetic acid concentration profile during ABE fermentation, (B) butyric acid concentration profile during ABE fermentation, and (C) pH profile during ABE fermentation. Ca 824: C. acetobutylicum; Cb 8052: C. beijerinckii.