Triacylglycerols Oxidation in Oils and Fats Monitored by Easy Ambient Sonic-Spray Ionization Mass Spectrometry

被引：30

作者：

Simas, R. C. ^{[1
]}

Barrera-Arellano, D. ^{[2
]}

Eberlin, M. N. ^{[1
]}

Catharino, R. R. ^{[3
]}

Souza, V. ^{[4
]}

Alberici, R. M. ^{[1
]}

机构：

[1] Univ Estadual Campinas, ThoMSon Mass Spectrometry Lab, Inst Chem, UNICAMP, BR-13083970 Campinas, SP, Brazil

[2] Univ Estadual Campinas, Fats & Oils Lab, Fac Food Engn, UNICAMP, BR-13083970 Campinas, SP, Brazil

[3] Univ Estadual Campinas, Dept Clin Pathol, Sch Med Sci, UNICAMP, BR-13083970 Campinas, SP, Brazil

[4] Natl Inst Metrol Qual & Technol, Div Chem Metrol, BR-25250020 Duque De Caxias, RJ, Brazil

来源：

JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY | 2012年 / 89卷 / 07期

基金：

巴西圣保罗研究基金会;

关键词：

Ambient mass spectrometry; Vegetable oils; Triacylglycerols; Hydroperoxides; Accelerated oxidation; Rancimat method; PERFORMANCE LIQUID-CHROMATOGRAPHY; LIPID OXIDATION; QUALITY-CONTROL; VEGETABLE-OILS; PRODUCTS; AUTOXIDATION;

D O I：

10.1007/s11746-012-2010-5

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Oxidation is the major cause of fat and oil deterioration which produces rancid and unpleasant flavors that drastically reduces their quality and nutritional value. The primary oxidation products are triacylglycerols (TAG) containing unsaturated fatty acyl hydroperoxides formed by a chain process occurring through free radical intermediates. The Rancimat method is currently the gold standard for measuring the oxidative stability of oils and fats. In this report, easy ambient sonic-spray ionization mass spectrometry (EASI-MS) is demonstrated to function as a direct (no pre-separation or sample preparation steps), fast and accurate method to monitor oils and fats oxidation, providing detailed overviews of the most immediate TAG hydroperoxide products. The EASI-MS results were compared to those obtained via the classical Rancimat test.

引用

页码：1193 / 1200

页数：8

共 32 条

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