Occurrence and role of lactic acid bacteria in seafood products

Food Microbiology
Leroi Françoise

Abstract

Lactic acid bacteria (LAB) in fish flesh has long been disregarded because the high post-mortem pH, the low percentage of sugars, the high content of low molecular weight nitrogenous molecules and the low temperature of temperate waters favor the rapid growth of pH-sensitive psychrotolerant marine Gram-negative bacteria like Pseudomonas, Shewanella and Photobacterium. In seafood packed in both vacuum (VP) and modified atmosphere (MAP) packaging commonly CO(2) enriched, the growth of the Gram-negative aerobic bacteria group (predominantly pseudomonads) is effectively inhibited and the number reached by LAB during storage is higher than that achieved in air but always several log units lower than the trimethylamine oxide (TMA-O) reducing and CO(2)-resistant organisms (Shewanella putrefaciens and Photobacterium phosphoreum). Accordingly, LAB are not of much concern in seafood neither aerobically stored nor VP and MAP. However, they may acquire great relevance in lightly preserved fish products (LPFP), including those VP or MAP. Fresh fish presents a very high water activity (aw) value (0.99). However, aw is reduced to about 0.96 when salt (typically 6% WP) is added to the product. As a result, aerobic Gram-negative bacteria are in...Continue Reading

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Citations

Sep 15, 2011·International Journal of Food Microbiology·Cecilie Smith Svanevik, Bjørn Tore Lunestad
Jul 5, 2012·International Journal of Microbiology·Patrizia GambarinMichela Favretti
Jul 23, 2014·Journal of Food Science·Bjorn RothAlbert Kjartansson Imsland
Jun 6, 2015·International Journal of Food Microbiology·Françoise LeroiJean-Jacques Joffraud
Jan 24, 2012·Food Microbiology·S M Powell, M L Tamplin
May 8, 2015·Journal of Food Protection·Sunniva HoelAnita Nordeng Jakobsen
Jan 10, 2019·International Journal of Molecular Sciences·Loris Riccardo LopetusoGiovanni Cammarota
Jan 14, 2016·Korean Journal for Food Science of Animal Resources·Ko-Eun HwangCheon-Jei Kim
Jul 21, 2020·Evolutionary Applications·Nicolas Derome, Marie Filteau
Jan 26, 2021·Biotechnology Reports·Andrea Micaela DallagnolGraciela Margarita Vignolo
Jan 10, 2021·Animals : an Open Access Journal From MDPI·Michael G KontominasCosmas I Nathanailides

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