title: Comparison and analysis of fatty acids, sterols, and tocopherols in eight vegetable oils.
abstract: The similarities and differences of eight vegetable oils produced in China were investigated in terms of their fatty acid, sterol, and tocopherol compositions and subsequent data processing by hierarchical clustering analysis and principal component analysis. The lipid profiles, acquired by analytical techniques tailored to each lipid class, revealed great similarities among the fatty acid profiles of corn and sesame oil as well as few differences in their sterol profiles. It turns out that not only was there great similarity between the fatty acid profiles of corn oil and sesame oil but also there were not too many differences for the sterol profiles. Sunflower and tea-seed oil showed similar sterol compositions, while the tea-seed oil tocopherol was very similar to palm oil. The results demonstrated that the use of only one of these profiles was unreliable for indentifying oil origin and authenticity. In contrast, the use of the sterol or tocopherol profile together with the fatty acid profile more accurately discriminates these oils.
authors: Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin University of Science and Technology, Tianjin, 300457, China.
authors: Changmo
authors: C
authors: Li
authors: Yunping
authors: Y
authors: Yao
authors: Guozhong
authors: G
authors: Zhao
authors: Wen
authors: W
authors: Cheng
authors: Huilin
authors: H
authors: Liu
authors: Chunyang
authors: C
authors: Liu
authors: Zhen
authors: Z
authors: Shi
authors: Yao
authors: Y
authors: Chen
authors: Shuo
authors: S
authors: Wang
mesh_terms: D002681:China; D005227:Fatty Acids / Q000032:analysis*; D005506:Food Contamination / Q000032:analysis; D010938:Plant Oils / Q000737:chemistry* / Q000145:classification; D011786:Quality Control; D015203:Reproducibility of Results; D013261:Sterols / Q000032:analysis*; D024505:Tocopherols / Q000032:analysis*
chemical_list: D005227:Fatty Acids; D010938:Plant Oils; D013261:Sterols; D024505:Tocopherols