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Influence of Cobalt on Propionibacterium freudenreichii

Nature volume 202, pages 212–213 (1964)Cite this article

Abstract

IN recent years some attention has been devoted to study of Propionibacterium chiefly because of its ability to synthesize appreciable amounts of vitamin B12. Several authors1–6, working with different species of Propionibacterium, reported high vitamin B12 activity under different culture conditions3–6. However, there is lack of sufficient experimental evidence to ascertain optimum conditions for its growth and synthesis of vitamin B12. In this connexion, we have carried out experiments on the influence of cobalt on the growth characteristics of P. freudenreichii. This work was undertaken as a consequence of our recent report7 that cobalt stimulated vitamin B12 content of activated sludge.

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Authors and Affiliations

  1. Environmental Engineering Division, Rensselaer Polytechnic Institute, Troy, New York

    S. SATHYANARAYANA RAO & D. R. WASHINGTON

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  1. S. SATHYANARAYANA RAO
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  2. D. R. WASHINGTON
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RAO, S., WASHINGTON, D. Influence of Cobalt on Propionibacterium freudenreichii. Nature 202, 212–213 (1964). https://doi.org/10.1038/202212a0

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