Evaluation in vitro of the antagonistic substances produced by Lactobacillus spp. isolated from chickens

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorLima, Edna T.-
Autor(es): dc.creatorAndreatti Filho, Raphael L.-
Autor(es): dc.creatorOkamoto, Adriano S.-
Autor(es): dc.creatorNoujaim, José C.-
Autor(es): dc.creatorBarros, Mércia R.-
Autor(es): dc.creatorCrocci, Adalberto J.-
Data de aceite: dc.date.accessioned2025-08-21T19:44:54Z-
Data de disponibilização: dc.date.available2025-08-21T19:44:54Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2007-04-01-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/224903-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/224903-
Descrição: dc.descriptionTo determine the inhibitory Qacity of lactic acid bacteria due to the action of antagonistic substances, we tested 474 isolates of Lactobacillus from the crop and cecum of chickens against gram-positive and gram-negative indicator microorganisms by the spot-on-the-lawn and well-diffusion antagonism methods. Of the 474 isolates, 265 demonstrated antimicrobial activity against the indicator microorganisms. Isolates identified as L. reuteri, L. salivarius, or Lactobacillus spp. inhibited Enterococcus faecalis, E. faecium, Listeria monocytogenes, and Salmonella spp. but not L. casei, L. delbrueckii, L. fermentum, or L. helveticus by the well-diffusion simultaneous antagonism method under anaerobic incubation conditions. The antagonistic substances produced by some of the Lactobacillus isolates were inactivated after treatment by proteolytic enzymes, which suggested that the substances could be antimicrobial peptides or bacteriocins.-
Descrição: dc.descriptionDepartment of Clinical Veterinary Medicine College of Veterinary Medicine and Animal Science São Paulo State University, Distrito Rubião Junior S/N, Botucatu, São Paulo-
Descrição: dc.descriptionDepartment of Biostatistics Institute for the Biosciences São Paulo State University, Distrito Rubião Junior S/N, Botucatu, São Paulo-
Descrição: dc.descriptionDepartment of Clinical Veterinary Medicine College of Veterinary Medicine and Animal Science São Paulo State University, Distrito Rubião Junior S/N, Botucatu, São Paulo-
Descrição: dc.descriptionDepartment of Biostatistics Institute for the Biosciences São Paulo State University, Distrito Rubião Junior S/N, Botucatu, São Paulo-
Formato: dc.format103-107-
Idioma: dc.languageen-
Relação: dc.relationCanadian Journal of Veterinary Research-
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Título: dc.titleEvaluation in vitro of the antagonistic substances produced by Lactobacillus spp. isolated from chickens-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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