Artículos de revistas
Effects Of Grilling On Cholesterol Oxide Formation And Fatty Acids Alterations In Fish [efeito Do Cozimento Na Formação De óxidos De Colesterol E Alteração Da Composição De ácidos Graxos Em Peixes]
Registro en:
Ciencia E Tecnologia De Alimentos. , v. 30, n. 2, p. 385 - 390, 2010.
1012061
2-s2.0-77955589160
Autor
Tatiana S.
Bragagnolo N.
Institución
Resumen
Due to the adverse effects of the cholesterol oxidation products for the human health, the search of the occurrence and the quantification of these compounds in foods are considered of great importance. In this paper the effect of grilling in hake and sardine on cholesterol oxides formation and fatty acids alterations was investigated. The main fatty acids determined in both fishes were docosahexaenoic (DHA), oleic, eicosapentaenoic (EPA) and palmitoleic. The total lipids, fatty acids and cholesterol contents were decreased significantly (p < 0.02) after thermal treatment, with simultaneous increase of the cholesterol oxides contents. The cholesterol oxides determined in both species in the present study were: 19-hydroxycholesterol, 24(S)-hydroxycholesterol, 22(S) hydroxycholesterol, 25-hydroxycholesterol, 25(R)-hydroxycholesterol and 7-ketocolesterol. 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