Abstract
AbstractIn this study, the fatty acid profile of 42 margarines marketed in Mexico was identified and quantified including the total trans fatty acids (TFA). The ratio of the sum of cholesterol‐lowering fatty acids CLFA (cis‐oleic, linoleic and α‐linolenic fatty acids) to the sum of cholesterol‐raising fatty acids CRFA (C12:0, C14:0, C16:0, TFA) and the ω6/ω3 ratio were calculated to evaluate the nutritional quality of the margarine samples. The results showed that the high content of C12:0, C14:0 and C16:0 fatty acids in some samples indicated the use of coconut and palm oils instead of partially hydrogenated fatty acids in order to decreased TFA content. Of the samples, 33% had less than 1 g/100 g of fat which could be considered as “free from TFA” according to the Danish Legislation. The ω6/ω3 ratio ranged between 5.85:1 and 25.85:1, the ideal relation being 5–10:1. The CLFA/CRFA ranged from 0.46 to 3.10, being the recommended ratio as high as possible. Of the 42 margarines, only five samples had an acceptable fatty acid profile, that is, low TFA and saturated fatty acids, high monounsaturated fatty acids content and adequate ω6/ω3 and CLFA/CRFA ratios.
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