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Effect of biodegradable film (lyophilised alga F ucus spiralis and sorbic acid) on quality properties of refrigerated megrim ( L epidorhombus whiffiagonis )
Author(s) -
GarcíaSoto Bibiana,
Miranda José M.,
RodríguezBernaldo de Quirós Ana,
Sendón Raquel,
RodríguezMartínez Ana V.,
BarrosVelázquez Jorge,
Aubourg Santiago P.
Publication year - 2015
Publication title -
international journal of food science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.831
H-Index - 96
eISSN - 1365-2621
pISSN - 0950-5423
DOI - 10.1111/ijfs.12821
Subject(s) - sorbic acid , polylactic acid , food science , preservative , chemistry , shelf life , polyethylene , extender , fish <actinopterygii> , peracetic acid , biology , organic chemistry , hydrogen peroxide , polymer , fishery , polyurethane
Summary The effect of replacing the on‐board currently employed polyethylene film by a novel type of environmentally friendly packaging was studied. For it, a polylactic acid ( PLA ) biodegradable film including lyophilised alga Fucus spiralis and sorbic acid was applied during megrim ( Lepidorhombus whiffiagonis ) refrigeration and its effect on fish quality loss was evaluated. Thus, sensory assessment showed that samples wrapped up with PLA film including 8% alga and 1% sorbic acid were still acceptable on day 11, while control fish specimens (kept under polyethylene film) were rejected at that time. Under such biodegradable film condition, a preservative effect was also implied according to chemical indices assessment related to microbial activity (trimethylamine–N) and lipid oxidation development (peroxide and fluorescent compounds formation); additionally, lower mean numbers for different microbiological groups (aerobes, Enterobacteriaceae and psychrotrophs) were detected. This result provides a promising replacement strategy to enhance refrigerated fish quality and reduce the waste material content.