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Selective production of lactic acid in continuous anaerobic acidogenesis by extremely low pH operation

Paper ID Volume ID Publish Year Pages File Format Full-Text
20580 43181 2012 3 PDF Available
Title
Selective production of lactic acid in continuous anaerobic acidogenesis by extremely low pH operation
Abstract

The selective production of lactic acid by anaerobic acidogenesis with low pH control was examined using a chemostat culture. By decreasing culture pH to 3.5 in a chemostat culture containing mixed microbial populations for anaerobic acidogenesis, heterolactic fermentation became dominant, resulting in the selective production of lactic acid and ethanol. This phenomenon was reversible between the acidic and neutral conditions, and was not affected by the dilution rate. The extremely low pH operation was effective for selective lactic acid production in anaerobic acidogenesis.

Keywords
Lactic acid; Anaerobic acidogenesis; Chemostat; pH; Heterolactic fermentation
First Page Preview
Selective production of lactic acid in continuous anaerobic acidogenesis by extremely low pH operation
Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Bioscience and Bioengineering - Volume 114, Issue 5, November 2012, Pages 537–539
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering