Lipid oxidation and fishy odour development in protein hydrolysate from Nile tilapia (Oreochromis niloticus) muscle as affected by freshness and antioxidants

dc.contributor.authorYarnpakdee, Suthasinee
dc.contributor.authorBenjakul, Soottawat
dc.contributor.authorNalinanon, Sitthipong
dc.contributor.authorKristinsson, Hordur G.
dc.date.accessioned2026-08-06T10:04:27Z
dc.date.available2026-08-06T10:04:27Z
dc.date.issued2012-06-15
dc.description.abstractLipid oxidation and fishy odour development in protein hydrolysate from fresh and ice-stored Nile tilapia (Oreochromis niloticus) were investigated. During iced storage of 18 days, heme iron content decreased with a concomitant increase in non-heme iron content (P < 0.05). Peroxide value (PV) and thiobarbituric acid reactive substances (TBARS) values increased. Phospholipid content decreased with a corresponding increase in free fatty acid content. The results suggested that lipid hydrolysis and oxidation took place during storage. When protein hydrolysates were produced from fresh and 18 days ice-stored Nile tilapia muscle, higher lipid oxidation and fishy odour/flavour along with higher amount volatile compounds were obtained in hydrolysate for unfresh sample (P < 0.05). However, the addition of mixed antioxidants during hydrolysis process markedly lowered lipid oxidation, b <sup>·</sup>, ΔC <sup>·</sup>, ΔE <sup>·</sup> values, fishy odour/flavour as well as the formation of volatile compounds in the resulting hydrolysates prepared from both fresh and unfresh samples. Therefore, hydrolysate from Nile tilapia muscle with reduced fishy odour and lighter colour could be prepared by using fresh fish and incorporation of mixed antioxidants during hydrolysis. © 2011 Elsevier Ltd. All rights reserved.
dc.identifier.citationFood Chemistry, 132(4), 1781-1788, 2012
dc.identifier.doi10.1016/j.foodchem.2011.11.139
dc.identifier.issn03088146
dc.identifier.other2-s2.0-84857042059
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/4247
dc.sourceFood Chemistry
dc.subjectFishy odour
dc.subjectIced storage
dc.subjectLipid oxidation
dc.subjectNile tilapia
dc.subjectProtein hydrolysate
dc.titleLipid oxidation and fishy odour development in protein hydrolysate from Nile tilapia (Oreochromis niloticus) muscle as affected by freshness and antioxidants
dc.typeConference Paper

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