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Production of bacteriocin-like substances by lactic acid bacteria isolated from regional ovine cheese

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Production of bacteriocin-like substances by lactic acid bacteria isolated from regional ovine cheese

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Título Production of bacteriocin-like substances by lactic acid bacteria isolated from regional ovine cheese
Autor Nespolo, Cassia Regina
Brandelli, Adriano
Abstract Lactic acid bacteria (LAB) were isolated from ovine milk and cheeses manufactured in the South Region of Brazil. Among 112 bacterial isolates investigated, 59 were chosen through a screening for LAB. Among these 59 strains of LAB, 21% showed antimicrobial, proteolytic and lipolytic activities. Based on this screening, Lactobacillus plantarum LCN 17 and Lactobacillus rhamnosus LCN 43 were selected and tested for the production of bacteriocin-like substances (BLS). The BLS produced by both isolates showed antimicrobial activity against Listeria monocytogenes, whereas that produced by L. plantarum LCN 17 presented higher stability to different temperature, pH and enzyme treatments. These strains present potential for production of BLS, and for use as starter cultures.
Contido em Brazilian journal of microbiology. São Paulo. Vol. 41, no. 4 (oct./dez. 2010), p. 1009-1018
Assunto Bacterias laticas
Bacteriocina
Queijo de leite de ovelha
[en] Bacteriocin-like substances
[en] Brazilian ovine cheese
[en] Ewe’s raw milk
[en] Lactic acid bacteria
Origem Nacional
Tipo Artigo de periódico
URI http://hdl.handle.net/10183/100138
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