title: Chemical components of cold pressed kernel oils from different Torreya grandis cultivars.
abstract: The chemical compositions of cold pressed kernel oils of seven Torreya grandis cultivars from China were analyzed in this study. The contents of the chemical components of T. grandis kernels and kernel oils varied to different extents with the cultivar. The T. grandis kernels contained relatively high oil and protein content (45.80-53.16% and 10.34-14.29%, respectively). The kernel oils were rich in unsaturated fatty acids including linoleic (39.39-47.77%), oleic (30.47-37.54%) and eicosatrienoic acid (6.78-8.37%). The kernel oils contained some abundant bioactive substances such as tocopherols (0.64-1.77mg/g) consisting of α-, β-, γ- and δ-isomers; sterols including β-sitosterol (0.90-1.29mg/g), campesterol (0.06-0.32mg/g) and stigmasterol (0.04-0.18mg/g) in addition to polyphenols (9.22-22.16μgGAE/g). The results revealed that the T. grandis kernel oils possessed the potentially important nutrition and health benefits and could be used as oils in the human diet or functional ingredients in the food industry.
authors.affiliation: State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, PR China. Electronic address: zyhe@jiangnan.edu.cn.
authors.forename: Zhiyong
authors.initials: Z
authors.lastname: He
authors.affiliation: State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, PR China.
authors.forename: Haidong
authors.initials: H
authors.lastname: Zhu
authors.affiliation: State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, PR China.
authors.forename: Wangling
authors.initials: W
authors.lastname: Li
authors.affiliation: State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, PR China.
authors.forename: Maomao
authors.initials: M
authors.lastname: Zeng
authors.affiliation: State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, PR China.
authors.forename: Shengfang
authors.initials: S
authors.lastname: Wu
authors.affiliation: State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, PR China.
authors.forename: Shangwei
authors.initials: S
authors.lastname: Chen
authors.affiliation: State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, PR China.
authors.forename: Fang
authors.initials: F
authors.lastname: Qin
authors.affiliation: State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, PR China; Synergetic Innovation Center of Food Safety and Nutrition, Jiangnan University, Wuxi, Jiangsu 214122, PR China. Electronic address: chenjie@jiangnan.edu.cn.
authors.forename: Jie
authors.initials: J
authors.lastname: Chen
mesh_terms: D002681:China; D003080:Cold Temperature; D005227:Fatty Acids / Q000737:chemistry; D006801:Humans; D010938:Plant Oils / Q000737:chemistry* / Q000302:isolation & purification; D012639:Seeds / Q000737:chemistry / Q000145:classification; D013261:Sterols / Q000737:chemistry / Q000302:isolation & purification; D032490:Taxaceae / Q000737:chemistry* / Q000145:classification; D024505:Tocopherols / Q000737:chemistry
chemical_list: D005227:Fatty Acids; D010938:Plant Oils; D013261:Sterols; D024505:Tocopherols
keywords: Fatty acid; Kernel oil; Physicochemical property; Polyphenol; Sterol; Tocopherol; Torreya grandis