title: Characterization of medium-chain triacylglycerol (MCT)-enriched seed oil from Cinnamomum camphora (Lauraceae) and its oxidative stability.
abstract: Medium-chain triacylglycerol (MCT)-enriched oil was extracted by supercritical fluid extraction of carbon dioxide (SFE-CO(2)) from Cinnamomum camphora seeds. The SFE-CO(2) process was optimized using the Box-Behnken design (BBD). The maximum oil yield (42.82%) was obtained under the optimal SFE-CO(2) conditions: extraction pressure, 21.16 MPa; extraction temperature, 45.67 °C; and extraction time, 2.38 h. Subsequently, the physicochemical characteristics, fatty acid composition, triacylglycerol (TAG) composition, tocopherol content, and DSC profile as well as oxidative stabilities of C. camphora seed oil (CCSO) were studied. Results showed that CCSO contained two major medium-chain fatty acids, capric acid (53.27%) and lauric acid (39.93%). The predominant TAG species in CCSO was LaCC/CLaC (ECN 32, 79.29%). Meanwhile, it can be found that CCSO had much higher oxidative stabilities than coconut oil due to the higher content of tocopherols in CCSO (α-tocopherol, 8.67 ± 0.51 mg/100 g; γ-tocopherol, 22.6 ± 1.02 mg/100 g; δ-tocopherol, 8.38 ± 0.47 mg/100 g). Conclusively, CCSO with such a high level of MCTs and high oxidative stabilities could be potentially applied in special food for specific persons such as weak patients and overweight persons because oils enriched in MCTs can be rapidly absorbed into body to provide energy without fat accumulation.
authors: State Key Laboratory of Food Science and Technology, Institute for Advanced Study, Nanchang University, Nanchang, Jiangxi, China.
authors: Jiang-Ning
authors: JN
authors: Hu
authors: Bing
authors: B
authors: Zhang
authors: Xue-Mei
authors: XM
authors: Zhu
authors: Jing
authors: J
authors: Li
authors: Ya-Wei
authors: YW
authors: Fan
authors: Rong
authors: R
authors: Liu
authors: Liang
authors: L
authors: Tang
authors: Ki-Teak
authors: KT
authors: Lee
authors: Ze-Yuan
authors: ZY
authors: Deng
mesh_terms: D027423:Cinnamomum camphora / Q000737:chemistry*; D015394:Molecular Structure; D010084:Oxidation-Reduction; D010938:Plant Oils / Q000737:chemistry* / Q000302:isolation & purification; D012639:Seeds / Q000737:chemistry; D014280:Triglycerides / Q000737:chemistry*
chemical_list: D010938:Plant Oils; D014280:Triglycerides