Fatty acid composition, cholesterol and antioxidant status of infrasprinatus muscle, liver and kidney of goats fed blend of Canola oil and palm oil
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Date
2016
Journal Title
Journal ISSN
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Publisher
Taylor and Francis
Abstract
The study assessed the lipid profile, cholesterol and antioxidant status of infraspinatus muscle,
kidney and liver from goats supplemented with increasing levels of blend of 20% palm oil and
80% canola oil. Twenty-four Boer bucks were randomly assigned to diets containing 0, 4 and 8%
oil blend, fed for 100 d and slaughtered. The tissues were subjected to 7 d postmortem storage
at 4 C. Diet did not affect total lipid and cholesterol content in the tissues. The proportions of
C14:0 in infraspinatus muscle and kidney, and C15:0 in all tissues were lower (p<0.05) while the
proportion of C18:3n:3 was greater in supplemented goats than the control goats. Proportion of
C18:1n-9 in infraspinatus muscle was higher (p<0.05) in goats fed oil blend than the control
goats. The liver and the infraspinatus muscle of the control goats had higher C18:1 trans-10 but
lower C18:1 trans-11 compared with those fed other diets. Diet had no effect on catalase, superoxide
dismutase and glutathione peroxidase activities, and the concentration of c and d-tocopherol
and lipid oxidation in all tissues. The concentrations of a-tocopherol and total carotenoid
were greater in the tissues of oil-fed goats compared with the control goats. Regardless of tissue,
the catalase and superoxide dismutase activities were stable throughout storage. Lipid oxidative
stability, glutathione peroxidase activity, tocopherol and carotenoid contents in the tissues
decreased (p<0.05) as postmortem storage progressed. Dietary 20% palm oil and 80% canola oil
blend modified the fatty acids in goat meat and offal without compromising their oxidative
stability.
Description
Keywords
antioxidant, fatty acid
Citation
https://www.tandfonline.com/doi/pdf/10.1080/1828051X.2016.1158081?needAccess=true