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  • Title: Fatty acid profile of milk and Cacioricotta cheese from Italian Simmental cows as affected by dietary flaxseed supplementation.
    Author: Santillo A, Caroprese M, Marino R, d'Angelo F, Sevi A, Albenzio M.
    Journal: J Dairy Sci; 2016 Apr; 99(4):2545-2551. PubMed ID: 26851850.
    Abstract:
    The study aimed to determine the effects of adding flaxseed to the diet on the fatty acid profile of the milk of Italian Simmental cows and on the Cacioricotta cheese thereby produced. The experiment involved 24 Italian Simmental cows divided into 2 groups of 12 animals according to the diet fed: a control diet (CO) with no flaxseed supplementation, and a diet supplemented with whole flaxseed (FS). Milk yield and composition was not significantly changed by diet, whereas saturated fatty acids, monounsaturated fatty acids (MUFA), and polyunsaturated fatty acids (PUFA) were increased by flaxseed supplementation. Cows fed flaxseed showed higher percentages of long-chain fatty acids: in particular, linolenic acids, mainly represented by C18:3n-3, and n-3 series were higher in the FS group than in the CO group. The percentage of MUFA was higher by about 12% in FS than in CO, mainly due to the contribution of C18:1 cis-9. The percentage of conjugated linoleic acid (CLA) in milk was not significantly changed by flaxseed supplementation. Furthermore, atherogenic and thrombogenic indices were lower by about 30 and 16%, respectively, in the FS group compared with the CO group. The fatty acid profile of Cacioricotta cheese produced using Italian Simmental cow milk showed higher levels of MUFA, PUFA, and n-3, and improved atherogenic and thrombogenic indices in FS than in CO, confirming the ability to transfer beneficial molecules from milk into cheese. In particular, cheese-making technology contributed to the increased CLA content in Cacioricotta cheese.
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