Abstract
Sunflower oil has been oxidized at 25 and 100°C in the presence and in the absence of 0.01,0.02 and 0.05% 3,4-dihydroxybenzoic acid, caffeic acid, esculetin and fraxetin. 3,4-Dihydroxybenzoic acid shows no antioxidative activity at either temperature. Esculezin possesses a relatively low effectiveness at 100°C (stabilization factorF=1.3 for 0.05% esculetin), and at 25°C it does not improve the oxidative stability. Sunflower oil is more easy to stabilize at 100°C:F=3.0 for 0.05% fraxetin, andF=1.9 for 0.05% caffeic acid. Native sunflower oil is much more difficult to stabilize than are its kinetically pure triacylglycerols.
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Yanishlieva, N.V., Marinova, E.M. Antioxidative effectiveness of some natural antioxidants in sunflower oil. Z Lebensm Unters Forch 203, 220–223 (1996). https://doi.org/10.1007/BF01192867
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DOI: https://doi.org/10.1007/BF01192867