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Appl Environ Microbiol. Jan 1996; 62(1): 304–307.
PMCID: PMC167799
Aerobic and anaerobic metabolism of Listeria monocytogenes in defined glucose medium.
T L Romick, H P Fleming, and R F McFeeters
Food Fermentation Laboratory, USDA Agricultural Research Service, North Carolina State University, Raleigh 27695-7624, USA.
Abstract
A defined medium with glucose as the carbon source was used to quantitatively determine the metabolic end products produced by Listeria monocytogenes under aerobic and anaerobic conditions. Of 10 strains tested, all produced acetoin under aerobic conditions but not anaerobic conditions. Percent carbon recoveries of end products, typified by strain F5069, were as follows: lactate, 28%; acetate, 23%; and acetoin, 26% for aerobic growth and lactate, 79%; acetate, 2%; formate, 5.4%; ethanol, 7.8%; and carbon dioxide, 2.3% for anaerobic growth. No attempt to determine carbon dioxide under aerobic growth conditions was made. The possibility of using acetoin production to assay for growth of L. monocytogenes under defined conditions should be considered.
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