Citrate Cycle Intermediates in the Metabolism of Aspartate and Lactate by Propionibacterium freudenreichii subsp. shermanii

Author:

Crow Vaughan L.1

Affiliation:

1. New Zealand Dairy Research Institute, Palmerston North, New Zealand

Abstract

Propionibacterium freudenreichii subsp. shermanii metabolized 7 mol of aspartate to 6 mol of succinate, 4 mol of CO 2 , and 7 mol of ammonia. When lactate, sparged with 100% CO 2 , was fermented at pH 5.5, unexpectedly high ratios of propionate to acetate were obtained (i.e., 3.2 to 3.8:1). Citrate cycle intermediates may be involved in these fermentations.

Publisher

American Society for Microbiology

Subject

Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology

Reference23 articles.

1. Bergmeyer H. U. E. Bernt H. Mollering and G. Pfleiderer. 1974. L-Aspartate and L-asparagine p. 1696-1700. In H. U. Bergmeyer (ed.) Methods of enzymatic analysis 2nd ed. vol. 4. Verlag Chemie Weinheim Federal Republic of Germany.

2. Pathways of terminal oxidation in propionic acid bacteria;Bonartseva G. A.;Microbiology (EngI. Transl. Mikrobiologiya),1973

3. A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye binding;Bradford M. M.;Anal. Biochem.,1976

4. The pyruvate oxidizing system of Propionibacterium freudenreichii subsp. shermanii;Castberg H. B.;Milchwissenschaft,1978

5. Utilization of lactate isomers by Propionibacterium freudenreichii subsp. shermanii: regulatory role for intracellular pyruvate;Crow V. L.;Appl. Environ. Microbiol.,1986

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