Abstract
The anti‐oxidative properties of trans‐resveratrol were studied in the concentration range 0.02–0.20% (8.8 × 10−4–8.8 × 10−3 M) during autoxidation of pure triacylglycerols of lard (TGL) and of pure triacylglycerols of sunflower oil (TGSO), as well as of commercial sunflower oil at 100 °C. In sunflower oil trans‐resveratrol showed no anti‐oxidative activity. In pure lipid systems trans‐resveratrol considerably retarded the oxidation process, the effect being stronger in the less oxidizable substrate (TGL). The effectiveness (stabilization factor F), strength (oxidation rate ratio, ORR) and activity (A=F/ORR) of the different anti‐oxidant concentrations were determined. The activity A was found to increase dose dependency as follows: A=3750–15425 for TGL, A=79–207 for TGSO. The participation of trans‐resveratrol in the side reactions of inhibited oxidation was discussed.
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