Increase of nisin production by Lactococcus lactis in different media

Nisin production related to the growth conditions of Lactococcus lactis subsp. lactis ATCC 11454, the effects of various media components and concomitant release of nisin into the media, were studied through transfers (five times). Nisin production was assayed by agar diffusion using Lactobacillus s...

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Bibliographic Details
Published in:African journal of biotechnology 2005-03, Vol.4 (3), p.262-265
Main Authors: Jozala, A F, Novaes, LCDL, Cholewa, O, Moraes, D, Penna, TCV
Format: Article
Language:English
Subjects:
Lactobacillus
Lactococcus lactis
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Summary:Nisin production related to the growth conditions of Lactococcus lactis subsp. lactis ATCC 11454, the effects of various media components and concomitant release of nisin into the media, were studied through transfers (five times). Nisin production was assayed by agar diffusion using Lactobacillus sake ATCC 15521 as the sensitive test organism. The expression of nisin was strongly influenced by the addition of skimmed milk to both MRS and M17 broth, with the highest production obtained after the second and the fifth transfers, respectively, with maximum expression after 36 h of incubation.
ISSN:1684-5315
1684-5315