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Myofibrillar protein, lipid and myoglobin oxidation, antioxidant profile, physicochemical and sensory properties of Caprine longissimus thoracis during postmortem conditioning


Citation

Adeyemi, Kazeem Dauda and Shittu, Rafiat Morolayo and Sabow, Azad Behnan and Karim, Roselina and Sazili, Awis Qurni (2017) Myofibrillar protein, lipid and myoglobin oxidation, antioxidant profile, physicochemical and sensory properties of Caprine longissimus thoracis during postmortem conditioning. Journal of Food Processing and Preservation, 41 (4). pp. 1-14. ISSN 0145-8892; ESSN: 1745-4549

Abstract / Synopsis

The study examined the impact of refrigerated storage on antioxidant profile, oxidative changes in myoglobin, lipids and myofibrillar proteins and quality attributes of longissimus thoracis (LT) muscle from goats. Analyses were conducted on LT obtained from carcasses of sixteen Boer bucks on 0, 1, 5 and 10 days postmortem. Ageing had no effect on antioxidant enzyme activities. Concentration of tocopherols and total carotenoids decreased over storage. Myoglobin, metmyoglobin reducing activity, redness and shear force decreased while metmyoglobin content and drip loss increased over storage. Free thiol decreased while carbonyls and TBARS increased over storage. The relative density of myosin heavy chain, actin and troponin T and the concentration of n−6 and n−3 fatty acids were stable until day 5 but declined afterward. Tocopherol and carotenoid were correlated (P < 0.05) with oxidative changes. Ageing did not affect consumer preference for juiciness, flavor and overall acceptability. However, preference for tenderness increased over storage.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Agriculture
Faculty of Food Science and Technology
Halal Products Research Institute
Institute of Tropical Agriculture
DOI Number: https://doi.org/10.1111/jfpp.13076
Publisher: Wiley Periodicals
Keywords: Postmortem ageing; Oxidation; Sensory; Refrigerated storage; Longissimus thoracis muscle
Depositing User: Nabilah Mustapa
Date Deposited: 14 Mar 2018 03:50
Last Modified: 14 Mar 2018 03:50
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1111/jfpp.13076
URI: http://psasir.upm.edu.my/id/eprint/59628
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