Effects of duration and temperature on heating of sunflower oil on ruminal linoleic acid biohydragenation in vitro
Résumé
Conjugated linoleic acids would be benefit for human health. The major source of CLA in human food is dairy products. One way to increase CLA in cow milk is to add oilseeds in their diet, and the best results are obtained with heat treated oilseeds (Chouinard et al. 2001*). Heating leads to a lipid peroxidation, which could reduce the amount of fatty acids subjected to biohydrogenation and produce peroxides which could act directly on this reaction. This study investigated the effects of the two main modulators of fat peroxidation, heating duration (experiment 1) and temperature (experiment 2), on the biohydrogenation in ruminal cultures.