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首页> 外文期刊>Journal of industrial and engineering chemistry >Bond reactivity and antioxidant effect on the autoxidation of soybean oil
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Bond reactivity and antioxidant effect on the autoxidation of soybean oil

机译：键反应性和抗氧化作用对大豆油自氧化的影响

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摘要

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 CH2, α-CH2, β-CH2, chain CH2 and CH2O of backbone in the presence and absence of phenolic and aniline antioxidants by means of iodometry and 500 MHz ~1H 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 C-H 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.
机译：豆油（SBO）包含许多不饱和脂肪酸，因此很容易被空气/氧气氧化。因此，通过碘量法和500 MHz方法，进行了大豆油的自氧化，以研究骨架中烯丙基，双烯丙基CH2，α-CH2，β-CH2，链CH2和CH2O在有无酚和苯胺抗氧化剂存在下的键反应性。 〜1H NMR光谱。从活性氧浓度，抑制作用以及通过将纯大豆油和氧化大豆油各键的质子积分应用于一级速率方程，首先得到各C-H键的反应性和抗氧化剂的抑制作用的顺序。在2,6-二叔丁基-4-甲酚的存在下，还首先通过GC-MS光谱法鉴定了氧化产物中的三个苯酚加合物。

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