Cholesterol, fatty acids profile and the indices of atherogenicity and thrombogenicity of raw lamb and mutton offal
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Date
Authors
Pretorius, Beulah
Schonfeldt, H.C. (Hettie Carina)
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier
Abstract
Dietary fats may affect blood lipid levels and the development of cardiovascular diseases. Offal, may contribute to food security in marginalised communities and information on the contribution to dietary fat intake is needed to inform dietary guidelines and recommendations and consumers. This study aimed to describe the fatty acid profile, cholesterol content and indexes of lipid quality. The fatty acid profile and cholesterol were determined by gas chromatography coupled with flame ionisation detection (GC-FID). To evaluate lipid quality the indices of atherogenicity (IA) and thrombogenicity (IT) were calculated. Offal products can contribute beneficial fatty acids to the diet, not only in terms of essential fatty acids such as linoleic (C18:2n-6) and alpha linolenic (C18:3n-3) acids, but also the polyunsaturated fatty acids, arachidonic (C20:4n-6) and eicosapentaenoic (C20:5n3) acids. The offal studied in the present work showed a P/S ratio of 0.04–0.12 and the n-6/n-3 ratio varied between 3.9 and 12.5.
Description
Keywords
Liver, Tongue, Lipid quality, Saturated fatty acids, Unsaturated fatty acids, Gas chromatography coupled with flame ionisation detection (GC-FID)
Sustainable Development Goals
Citation
Pretorius, B. & Schönfeldt, H.C. 2021, 'Cholesterol, fatty acids profile and the indices of atherogenicity and thrombogenicity of raw lamb and mutton offal', Food Chemistry, vol. 345, art. 128868, pp. 1-8.