Study by proton nuclear magnetic resonance of the thermal oxidation of oils rich in oleic acyl groups

被引：41

作者：

Guillén, MD ^{[1
]}

Ruiz, A ^{[1
]}

机构：

[1] Univ Basque Country, Fac Farm, Vitoria 01006, Spain

来源：

JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY | 2005年 / 82卷 / 05期

关键词：

H-1 nuclear magnetic resonance; olive; hazelnut and peanut oils; oxidation process; oxygenated aldehydes; primary oxidation compounds; secondary oxidation compounds;

D O I：

10.1007/s11746-005-1077-2

中图分类号：

O69 [应用化学];

学科分类号：

081704 [应用化学];

摘要：

The oxidation process of olive, hazelnut, and peanut oils at 70 degrees C with circulating air has been studied by means of H-1 NMR. The evolution of the process, including the rate of degradation of the acyl groups and of formation and degradation of primary oxidation products, as well as the rate of formation of secondary oxidation products such as aldehydes, is commented on and compared with the oxidation of oils rich in polyunsaturated acyl groups. Differences that are due not only to the rate of the processes but also to the nature and concentration of the generated aldehydes are observed. Oils rich in monounsaturated acyl groups generate smaller amounts of the geno- and cytotoxic oxygenated aldehydes than oils rich in polyunsaturated acyl groups.

引用

页码：349 / 355

页数：7

共 33 条

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