Bond reactivity and antioxidant effect on the autoxidation of soybean oil

作者：Lee Kyu Wan^*; Hong Zhenyu; Piao Fengnv; Kim Young Wun; Chung Keun Woo

来源：Journal of Industrial and Engineering Chemistry, 2010, 16(3): 419-424.

DOI：10.1016/j.jiec.2010.01.041

• Soybean oil
• Autoxidation
• Active oxygen
• Antioxidant
• Bond reactivity
• Phenol adduct

Soybean oil (SBO) contains many unsaturated fatty acids, so that it can be easily oxidized by air/oxygen. Therefore the autoxidation of soybean oil was performed to investigate the bond reactivities of allylic, bisallylic CH(2), alpha-CH(2), beta-CH(2), chain CH(2) and CH(2)O of backbone in the presence and absence of phenolic and aniline antioxidants by means of iodometry and 500 MHz (1)H NMR spectroscopy. From the active oxygen concentration, the inhibiting effect and by application of proton integration of each bond of pure and oxidized soybean oil to the first order rate equation, got firstly the orders of the reactivity of each CH bond and inhibiting effect of antioxidants. In the presence of 2,6-di-t-butyl-4-cresol, three phenol adducts from oxidation product also firstly were identified by means of GC-MS spectroscopy.

• 出版日期2010-5-25
• 单位延边大学