Abstract
This study aimed to evaluate the antioxidant and hypolipemiant effect of oregano and thyme
oleoresins under the lipid profile and the oxidation of the LDL fraction in vivo. Wistar
rats were used and fed with a hypercholesterolemic diet and oleoresin supplementation by
gavage, for 40 days. Analyses of the lipid profile and LDL oxidation were performed. The
isolated administration of oleoresins significantly reduced the values of total cholesterol when
compared to the group that received only the hypercholesterolemic diet. The supplementation
with oregano oleoresin was the most effective one, regarding the reduction of total cholesterol.