title: Characterization of volatile components in four vegetable oils by headspace two-dimensional comprehensive chromatography time-of-flight mass spectrometry.
abstract: Edible oil adulteration is the biggest source of food fraud all over the world. Since characteristic aroma is an important quality criterion for edible oils, we analyzed volatile organic compounds (VOCs) in four edible vegetable oils (soybean, peanut, rapeseed, and sunflower seed oils) by headspace comprehensive two-dimensional gas chromatography time-of-flight mass spectrometry (Headspace-GC×GC-TOFMS) in this study. After qualitative and quantitative analysis of VOCs, we used unsupervised (PCA) and supervised (Random forests) multivariate statistical methods to build a classification model for the four edible oils. The results indicated that the four edible oils had their own characteristic VOCs, which could be used as markers to completely classify these four edible oils into four groups.
authors.affiliation: Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China; Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan 430062, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Hu
authors.affiliation: Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China; Laboratory of Risk Assessment for Oilseeds Products (Wuhan), Ministry of Agriculture, Wuhan 430062, China; Quality Inspection and Test Center for Oilseeds Products, Ministry of Agriculture, Wuhan 430062, China. Electronic address: liangxiao_zhang@hotmail.com.
authors.forename: Liangxiao
authors.initials: L
authors.lastname: Zhang
authors.affiliation: Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China; Key laboratory of Detection for Mycotoxins, Ministry of Agriculture, Wuhan 430062, China; Laboratory of Risk Assessment for Oilseeds Products (Wuhan), Ministry of Agriculture, Wuhan 430062, China; Quality Inspection and Test Center for Oilseeds Products, Ministry of Agriculture, Wuhan 430062, China. Electronic address: peiwuli@oilcrops.cn.
authors.forename: Peiwu
authors.initials: P
authors.lastname: Li
authors.affiliation: Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China; Quality Inspection and Test Center for Oilseeds Products, Ministry of Agriculture, Wuhan 430062, China. Electronic address: wangxiupin@caas.cn.
authors.forename: Xiupin
authors.initials: X
authors.lastname: Wang
authors.affiliation: Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China; Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan 430062, China; Key laboratory of Detection for Mycotoxins, Ministry of Agriculture, Wuhan 430062, China.
authors.forename: Qi
authors.initials: Q
authors.lastname: Zhang
authors.affiliation: Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China; Quality Inspection and Test Center for Oilseeds Products, Ministry of Agriculture, Wuhan 430062, China.
authors.forename: Baocheng
authors.initials: B
authors.lastname: Xu
authors.affiliation: Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China; Quality Inspection and Test Center for Oilseeds Products, Ministry of Agriculture, Wuhan 430062, China.
authors.forename: Xiaoman
authors.initials: X
authors.lastname: Sun
authors.affiliation: Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China; Key laboratory of Detection for Mycotoxins, Ministry of Agriculture, Wuhan 430062, China; Quality Inspection and Test Center for Oilseeds Products, Ministry of Agriculture, Wuhan 430062, China.
authors.forename: Fei
authors.initials: F
authors.lastname: Ma
authors.affiliation: Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China; Laboratory of Risk Assessment for Oilseeds Products (Wuhan), Ministry of Agriculture, Wuhan 430062, China.
authors.forename: Xiaoxia
authors.initials: X
authors.lastname: Ding
mesh_terms: D010367:Arachis; D029741:Brassica rapa; D016000:Cluster Analysis; D005504:Food Analysis / Q000379:methods*; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D015999:Multivariate Analysis; D010938:Plant Oils / Q000737:chemistry*; D025341:Principal Component Analysis; D015203:Reproducibility of Results; D013025:Glycine max; D000074242:Sunflower Oil; D055549:Volatile Organic Compounds / Q000032:analysis*
chemical_list: D010938:Plant Oils; D000074242:Sunflower Oil; D055549:Volatile Organic Compounds
keywords: Chemometrics; Classification; Edible vegetable oil; Headspace GC×GC–TOFMS; Volatile organic compounds