Determination of microbiological quality and histamine levels in rainbow trouts (Oncorhynchus mykiss) Determination of microbiological quality and histamine levels in rainbow trouts (Oncorhynchus mykiss) El En

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28 janvier 2022

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https://ejournals.epublishing.ekt.gr/index.php/jhv [...]

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Copyright (c) 2022 A AKSOY, Ç SEZER, M ATASEVER, A ÇETINKAYA, G GÜLBAZ , https://creativecommons.org/licenses/by-nc/4.0

Mots-clés El En

Rainbow trout Microbial quality Histamine ELISA PCR Rainbow trout Microbial quality Histamine ELISA PCR

Sujets proches En

Salmo irideus Redband trout Salmo gairdneri Oncorhynchus mykiss

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A AKSOY et al., « Determination of microbiological quality and histamine levels in rainbow trouts (Oncorhynchus mykiss) », eJournals, ID : 10670/1.wc0nmt

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This study aims to determine the microbiological quality and histamine levels of fresh-marketed rainbow trouts (Oncorhynchus mykiss). The total mesophilic aerobic bacteria (TMAB), total psychrophilic aerobic bacteria (TPAB), coliform, fecal coliform, Enterobacteriaceae, Pseudomonas, Staphylococcus-Micrococcus and mold-yeast numbers were detected as 4.24, 4.00, 1.10, 0.17, 1.50, 3.05, 0.28 and 3.82 log10 cfu/g, respectively. Yersinia enterocolitica, Listeria monocytogenes, Escherichia coli O157:H7 and Vibrio spp bacteria were found in 18 (37.5%), 14 (29.1%), 8 (16.6%) and 14 (29.1%) respectively. Twenty-eight out of 51 Listeria isolates (54.9%) were verified through PCR analysis as L. monocytogenes. It was determined that the histamine level in the samples was above the detectable level (>2.5 mg/kg) in 8 of the samples (16.6%)determined using an ELISA method. It was concluded that the detection of foodborne pathogens in fresh-marketed fish samples potentially constitutes a public health hazard.

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