Data/hora: 01/06/2024 06:41:14

Provedor de dados: | 58
País: | Brazil
Título: | Bacteria of fecal origin in mangrove oysters (Crassostrea rhizophorae) in the Cocó River estuary, Ceará State, Brazil
Autores: | Silva,Ana I.M.; Vieira,Regine H.S.F.; Menezes,Francisca G.R.; Fonteles-Filho,Antonio A.; Torres,Regina C.O.; Sant'Anna,Ernani S.
Data: | 2004-06-01
Ano: | 2004
Palavras-chave: | Oyster; Total and fecal coliforms; Enterococci; Bacteriocins.
Resumo: | This study was aimed at evaluating the microbiological quality of mangrove oysters (Crassostrea rhizophorae), collected at a natural oyster bed in the estuary of Cocó river (Fortaleza, Ceará, Brazil). MPN values were used for estimating the total (TC) and fecal (FC) coliforms and Enterococcus spp. TC and FC MPN values in the whole muscle and intervalve liquid ranged from &lt;1.8 to &gt;1,600/g and from &lt;1.8 to 920/g, respectively. The MPN estimates for Enterococcus spp. were between &lt;3.0 and &gt;1,100/g. No correlation was found between the physico-chemical parameters (temperature, salinity and pH) of the surrounding water and the bacteriological contamination levels found in the tested oysters. The only correlation found was between TC and FC values. Enterococcus spp. strains were isolated and subjected to biochemical tests for species identification. The capacity of those strains for production of a bacteriocin-like inhibitory substance was tested using the Escherichia coli strain ATCC 25922 as a testing organism. Only one, E. faecalis, out of 121 Enterococcus strains tested, presented the inhibitory activity.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822004000100021
Editor: | Sociedade Brasileira de Microbiologia
Relação: | 10.1590/S1517-83822004000100021
Formato: | text/html
Fonte: | Brazilian Journal of Microbiology  v.35 n.1-2 2004
Fonte: | info:eu-repo/semantics/openAccess