Fatty acids and lipid indices of buffalo milk yogurt

N. Naydenova, T. Iliev, G. Mihaylova
Abstract. The present investigation had the objective to study the changes in the atherogenic index and the lipid preventive score as nutrition indicators for assessment of the risk of cardio-vascular diseases. The study was performed with buffalo milk, obtained from purebred Bulgarian Murrah buffaloes from II lactation, reared in the herd of the private farm in Dimitrievo village. The content of saturated fatty acids in buffalo yogurt is higher than in raw milk at the expense of unsaturated fatty acids. Omega-6/omega-3 ratio varies from 3.58 for yogurt to 4.30 for raw milk, which is within the range of the optimal values for healthy nutrition. The atherogenic index was calculated on the obtained values for the lauric (C12:0), myristic (C14:0) and palmitic (C16:0) acids and the unsaturated fatty acids. The obtained data for the raw milk and yoghurt are 2.68 and 3.24, respectively. The values of lipid preventive score calculated on the basis of fat content and fatty acid groups – saturated, monounsaturated and polyunsaturated, showing the degree of preventive effect regarding the risk of cardiovascular disease, are 12.42 for raw milk and 14.52 for the produced yogurt, respectively.