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The ability of Lactococcus lactis subsp. lactis bv. diacetylactis strains in producing nisin.
Fusieger, Andressa; Perin, Luana Martins; Teixeira, Camila Gonçalves; de Carvalho, Antônio Fernandes; Nero, Luís Augusto.
Afiliación
  • Fusieger A; Departamento de Tecnologia de Alimentos, Universidade Federal de Viçosa, Campus UFV, Centro, Viçosa, MG, 36570-900, Brazil.
  • Perin LM; InsPOA - Laboratório de Inspeção de Produtos de Origem Animal - Departamento de Veterinária, Universidade Federal de Viçosa, Campus Viçosa, Centro, Viçosa, MG, 36570-900, Brazil.
  • Teixeira CG; InsPOA - Laboratório de Inspeção de Produtos de Origem Animal - Departamento de Veterinária, Universidade Federal de Viçosa, Campus Viçosa, Centro, Viçosa, MG, 36570-900, Brazil.
  • de Carvalho AF; Departamento de Tecnologia de Alimentos, Universidade Federal de Viçosa, Campus UFV, Centro, Viçosa, MG, 36570-900, Brazil.
  • Nero LA; Departamento de Tecnologia de Alimentos, Universidade Federal de Viçosa, Campus UFV, Centro, Viçosa, MG, 36570-900, Brazil.
Antonie Van Leeuwenhoek ; 113(5): 651-662, 2020 May.
Article en En | MEDLINE | ID: mdl-31838601
Lactococcus lactis subsp. lactis bv. diacetylactis is a relevant microorganism for the dairy industry because of its role in the production of aromatic compounds. Despite this technological property, the identification of bacteriocinogenic potential of obtained strains can offer the additional positive aspect of biosafety. A panel of 15 L. lactis subsp. lactis bv. diacetylactis strains was characterised for the presence and expression of bacteriocin related genes, and further investigated regarding the nisin operon. Eight strains were positive only for nisA, and one strain (SBR4) presented a full nisin operon, with sequencing that was shown to be similar to nisin Z. Only SBR4 presented inhibitory activity against 16 microbial target strains. The growth curves of selected targets strains confirmed the inhibitory activity of SBR4 and consequently the nisin production. This research has demonstrated the inhibitory potential of L. lactis subsp. lactis bv. diacetylactis strain, SBR4, due to its ability to produce nisin Z. This biopreservative potential, associated to previously characterised technological properties, allow the indication of this strain as a promising candidate to be used by the dairy industry as a starter or adjunct culture.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Lactococcus lactis / Industria Lechera / Nisina Idioma: En Revista: Antonie Van Leeuwenhoek Año: 2020 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Países Bajos

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Lactococcus lactis / Industria Lechera / Nisina Idioma: En Revista: Antonie Van Leeuwenhoek Año: 2020 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Países Bajos