title: Triacylglycerol compositions of sunflower, corn and soybean oils examined with supercritical CO2ultra-performance convergence chromatography combined with quadrupole time-of-flight mass spectrometry.
abstract: A supercritical CO2ultra-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. UPC2provided 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 MS2fragment ion profiles, and their levels in the three oils were estimated. The combination of UPC2and 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.
authors.affiliation: Institute of Food and Nutraceutical Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China; Department of Nutrition and Food Science, University of Maryland, College Park, MD 20742, USA.
authors.forename: Boyan
authors.initials: B
authors.lastname: Gao
authors.affiliation: Department of Nutrition and Food Science, University of Maryland, College Park, MD 20742, USA.
authors.forename: Yinghua
authors.initials: Y
authors.lastname: Luo
authors.affiliation: Institute of Food and Nutraceutical Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China.
authors.forename: Weiying
authors.initials: W
authors.lastname: Lu
authors.affiliation: Institute of Food and Nutraceutical Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China; Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology & Business University, Beijing 100048, China.
authors.forename: Jie
authors.initials: J
authors.lastname: Liu
authors.affiliation: Institute of Food and Nutraceutical Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China. Electronic address: yqzhang2006@sjtu.edu.cn.
authors.forename: Yaqiong
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Department of Nutrition and Food Science, University of Maryland, College Park, MD 20742, USA. Electronic address: lyu5@umd.edu.
authors.forename: Liangli Lucy
authors.initials: LL
authors.lastname: Yu
mesh_terms: D002845:Chromatography / Q000379:methods; D003314:Corn Oil / Q000032:analysis*; D013058:Mass Spectrometry / Q000379:methods; D010938:Plant Oils / Q000032:analysis*; D013024:Soybean Oil / Q000032:analysis*; D000074242:Sunflower Oil; D014280:Triglycerides / Q000032:analysis*
chemical_list: D010938:Plant Oils; D000074242:Sunflower Oil; D014280:Triglycerides; D013024:Soybean Oil; D003314:Corn Oil
keywords: Corn oil; Quadrupole time-of-flight mass spectrometry (Q-TOF MS); Soybean oil; Sunflower oil; Triacylglycerol; Ultra-performance convergence chromatography (UPC(2))