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Provedor de dados:  BABT
País:  Brazil
Título:  Isolation and Identification of a Potential Amylolytic Probiotic Bacterium from the Gut of Jundiá Catfish, Rhamdia quelen.
Autores:  Poletto,Tatiana Vieira
Vieira,Cleide Rosana Werneck
Silva,Carlos Peres
Fracalossi,Debora Machado
Data:  2018-01-01
Ano:  2018
Palavras-chave:  Enzymes
Probiotics
Aquaculture
Intestinal microbiology
Aeromonas veronii
Resumo:  ABSTRACT This study aimed to isolate a potential probiotic amylolytic strain from the gut of jundiá catfish to improve carbohydrate digestibility in fish. Two of 31 strains isolated from the foregut of Rhamdia quelen were able to grow on starch-agar medium and were considered amylolytic. The strain that presented higher amylolytic potential, based on a qualitative amylase assay, was chosen. The strain was phenotypically characterized and analysed to determine bile and pH tolerance and extracellular quantitative amylase activity. The probiotic candidate, identified as Aeromonas veronii, showed the ability to survive stresses from a range of pH and bile salt conditions and secreted an interesting enzymatic profile, which may exhibit a synergistic effect when combined with the enzymes secreted by the jundiá catfish, improving carbohydrate digestion in the host. The results demonstrated the potential of A. veronii to improve the digestion process in jundiá by providing exogenous enzymes for the breakdown and absorption of nutrients.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Identificador:  http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132018000100323
Editor:  Instituto de Tecnologia do Paraná - Tecpar
Relação:  10.1590/1678-4324-2018161205
Formato:  text/html
Fonte:  Brazilian Archives of Biology and Technology v.61 2018
Direitos:  info:eu-repo/semantics/openAccess
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