Triacylglycerol compositions of sunflower, corn and soybean oils examined with supercritical CO2 ultra-performance convergence chromatography combined with quadrupole time-of-flight mass spectrometry

被引：51

作者：

Gao, Boyan ^{[1
,2
]}

Luo, Yinghua ^{[2
]}

Lu, Weiying ^{[1
]}

Liu, Jie ^{[1
,3
]}

Zhang, Yaqiong ^{[1
]}

Yu, Liangli ^{[2
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Agr & Biol, Inst Food & Nutraceut Sci, Shanghai 200240, Peoples R China

[2] Univ Maryland, Dept Nutr & Food Sci, College Pk, MD 20742 USA

[3] Beijing Technol & Business Univ, Beijing Adv Innovat Ctr Food Nutr & Human Hlth, Beijing 100048, Peoples R China

来源：

FOOD CHEMISTRY | 2017年 / 218卷

基金：

国家高技术研究发展计划(863计划);

关键词：

Triacylglycerol; Sunflower oil; Corn oil; Soybean oil; Ultra-performance convergence chromatography (UPC2); Quadrupole time-of-flight mass spectrometry (Q-TOF MS); VEGETABLE-OILS; IONIZATION; MS; OPTIMIZATION; ADULTERATION; MULTIVARIATE; FAT;

D O I：

10.1016/j.foodchem.2016.09.099

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A supercritical CO2 ultra-performance convergence chromatography (UPC2) system was utilized with a quadrupole time-of-flight mass spectrometry (Q-TOF MS) to examine the triacylglycerol compositions of sunflower, corn and soybean oils. UPC2 provided an excellent resolution and separation for the triacylglycerols, while the high performance Q-TOF MS system was able to provide the molecular weight and fragment ions information for triacylglycerol compound characterization. A total of 33 triacylglycerols were identified based on their elementary compositions and MS2 fragment ion profiles, and their levels in the three oils were estimated. The combination of UPC2 and Q-TOF MS may determine triacylglycerol compositions for oils and fats, and provide sn-position information for fatty acids, which may be important for food nutritional value and stability. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：569 / 574

页数：6

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