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Etude de la nisinase produite par Streptococcus thermophilus

Published online by Cambridge University Press:  01 June 2009

Par R. Alifax  and
R. Chevalier
Par R. Alifax
Affiliation:
Laboratoire de Recherches de la Chaire de Microbiologie de l'Institut National Agronomique, Paris (France)
R. Chevalier
Affiliation:
Laboratoire de Recherches de la Chaire de Microbiologie de l'Institut National Agronomique, Paris (France)
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Summary

Of several strains of lactic acid bacteria which produced nisinase, Streptococcus thermophilus, strain TJ, was the most active. The optimum pH for extraction of the nisinase from an acetone preparation of bacterial cells and for incubation of the solution containing nisin and nisinase was in the neighbourhood of 7·0. The proportions of nisin destroyed by the nisinase under various conditions were determined. Also, it has been shown that nisinase has no action on a number of antibiotics, including subtilin.

Type
Original Articles
Information
Journal of Dairy Research , Volume 29 , Issue 3 , October 1962 , pp. 233 - 240
Copyright
Copyright © Proprietors of Journal of Dairy Research 1962

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References

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