Impact of chill storage on antioxidant status, lipid and protein oxidation, color, drip loss and fatty acids of semimembranosus muscle in goats

Adeyemi, K.D. and Sabow, A.B. and Shittu, R.M. and Karim, R. and Karsani, S.A. and Sazili, A.Q. (2015) Impact of chill storage on antioxidant status, lipid and protein oxidation, color, drip loss and fatty acids of semimembranosus muscle in goats. CyTA - Journal of Food, 14 (3). pp. 405-414. ISSN 1947-6337

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Official URL: http://dx.doi.org/10.1080/19476337.2015.1114974

Abstract

The study examined the effect of refrigerated storage on antioxidant activities, lipid and protein oxidation, fatty acids (FAs), drip loss and color of semimembranosus (SM) muscle from goats. Samples of SM were obtained from carcasses of 15 Boer bucks (7 months old; body weight, 32.18 ± 0.81 kg) subjected to an 8 d storage at 4°C. Superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPX) activities were stable while carotenoid, tocopherol, water holding capacity and redness declined (P < 0.05) as storage progressed. Carbonyl content increased from 1.85 to 4.73 nmol/mg protein while thiol content reduced from 54.22 to 42.82 nmol/mg protein. The TBARS value increased from 0.2 to 0.8 mg MDA/kg. SDS-PAGE expression of myosin heavy chain (MHC) decreased (P < 0.05) from 72.45 to 49.82 density/mm2 while actin reduced (P > 0.05) from 14.00 to 13.08 density/mm2. The concentrations of n-3 and n-6 FA decreased while the saturated FA increased over storage. Correlations (P < 0.05) were found between antioxidant vitamins and quality indicators of chevon.

Item Type: Article
Uncontrolled Keywords: Actin; Catalase; Carbonyl; Glutathione peroxidase; Myosin; Thiol; Superoxide dismutase
Subjects: Q Science > Q Science (General)
Q Science > QH Natural history > QH301 Biology
Divisions: Faculty of Science > Institute of Biological Sciences
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 23 Oct 2017 06:04
Last Modified: 23 Oct 2017 06:04
URI: http://eprints.um.edu.my/id/eprint/18063

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