Kinetic Analysis of Bifidobacterial Metabolism Reveals a Minor Role for Succinic Acid in the Regeneration of NAD + through Its Growth-Associated Production

Author:

Van der Meulen Roel1,Adriany Tom1,Verbrugghe Kristof1,De Vuyst Luc1

Affiliation:

1. Research Group of Industrial Microbiology and Food Biotechnology (IMDO), Department of Applied Biological Sciences and Engineering, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium

Abstract

ABSTRACT Several strains belonging to the genus Bifidobacterium were tested to determine their abilities to produce succinic acid. Bifidobacterium longum strain BB536 and Bifidobacterium animalis subsp. lactis strain Bb 12 were kinetically analyzed in detail using in vitro fermentations to obtain more insight into the metabolism and production of succinic acid by bifidobacteria. Changes in end product formation in strains of Bifidobacterium could be related to the specific rate of sugar consumption. When the specific sugar consumption rate increased, relatively more lactic acid and less acetic acid, formic acid, and ethanol were produced, and vice versa. All Bifidobacterium strains tested produced small amounts of succinic acid; the concentrations were not more than a few millimolar. Succinic acid production was found to be associated with growth and stopped when the energy source was depleted. The production of succinic acid contributed to regeneration of a small part of the NAD + , in addition to the regeneration through the production of lactic acid and ethanol.

Publisher

American Society for Microbiology

Subject

Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology

Reference44 articles.

1. Ballongue, J. 1998. Bifidobacteria and probiotic action, p. 519-587. In S. Salminen and A. von Wright (ed.), Lactic acid bacteria: microbiology and functional aspects. Marcel Dekker Inc., New York, N.Y.

2. Bourriaud, C., R. J. Robins, L. Martin, F. Kozlowski, E. Tenailleau, C. Cherbut, and C. Michel. 2005. Lactate is mainly fermented to butyrate by human intestinal microfloras but inter-individual variation is evident. J. Appl. Microbiol.99:201-212.

3. Bifidobacterium longum Requires a Fructokinase (Frk; ATP: d -Fructose 6-Phosphotransferase, EC 2.7.1.4) for Fructose Catabolism

4. Chiappini, M. G. 1966. Carbon dioxide fixation in some strains of the species Bifidobacterium bifidum,Bifidobacterium constellatum,Actinomyces bovis and Actinomyces israelii. Ann. Microbiol.16:25-32.

5. Fermentation of Glucose, Lactose, Galactose, Mannitol, and Xylose by Bifidobacteria

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