Open AccessInfluence of treatments in the quality of Nile tilapia ( Oreochromis niloticus ) fillets
Author(s) -
Fonseca Gustavo Graciano,
CavenaghiAltemio Angela Dulce,
Fátima Silva Mariangela,
Arcanjo Verônica,
SanjinezArgandoña Eliana Janet
Publication year - 2013
Publication title -
food science and nutrition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.614
H-Index - 27
ISSN - 2048-7177
DOI - 10.1002/fsn3.33
Subject(s) - nile tilapia , oreochromis , food science , mesophile , tilapia , chemistry , psychrotrophic bacteria , fish <actinopterygii> , bacteria , shelf life , fishery , biology , genetics
In this study, the influence of different treatments was evaluated: nonwashing, washing in chlorinated water and washing/soaking in chlorinated water and sodium chloride on the quality of Nile tilapia ( Oreochromis niloticus ) fillets during storage at 1.0 ± 0.5°C through daily analysis of pH , moisture, and lipids content. Microbiological analysis and growth modeling for mesophilic and psychrotrophic bacteria and Staphylococcus sp. were also carried out. Finally, we confirmed the microbiological safety through sensory analyses. The main results suggest that fillets washed or soaked in chlorinated water and sodium chloride present clear and narrower blood line coloration; that is, they are less oxidized than those that received other treatments and are microbiologically safe for use within 12 days of storage. It was concluded that the treatments in chlorinated and salinized water favored the quality maintenance of fillets.