Monitoramentodo perfil de ácidos graxos do queijo minas padrão enriquecido com CLA durante o processo de maturação

Abstract

It has been proposed for this work to obtain milk enriched with CLA manipulating the diet of cows adding vegetable oils rich in linoleic acid and thus produce fresh cheese, comparing it to the one traditionally produced. Fatty acids were quantified through gas chromatographic analysis, identified by comparison between the retention time of fame-mix standard and other commercial standards, 62 peaks were obtained. The results obtained proved to be satisfactory, as much in the increase of CLA in milk, as on its presence without changes in the cheeses, the level of C18:1 trans-11 in milk showed an average increase of 1.367g/100g of fat (120.76%); and CLA Cis-9 trans-11 showed an average increase of 0.535g/100g of fat (95.36%). During the maturation process the level of CLA didn't present changes. A sensory analysis was performed with 30 untrained tasters/ treatment/ repetition, in order to compare the obtained cheeses with and without CLA and the same acceptance among treatments was observed. It was possible to obtain a dairy product, fresh cheese within the class of functional foods, which has been a persistent pursuit of the consumer market that has proven to be demanding regarding nutritional quality.