Fabrication, characterization, and purification of nutraceutical diacylglycerol components from Camellia oil
文献类型： 外文期刊
作者： Huang, Chuanqing 1 ; Liu, Zeyu 1 ; Huang, Wenqian 2 ; Li, Lu 1 ; Ye, Yong 1 ;
作者机构： 1.South China Univ Technol, Sch Chem & Chem Engn, Dept Pharmaceut Engn, Guangzhou 510006, Peoples R China
2.Guangdong Acad Agr Sci, Sericulture & Agrifood Res Inst, Guangdong Key Lab Agr Prod Proc, Key Lab Funct Foods,Minist Agr & Rural Affairs, Guangzhou, Peoples R China
3.Jiangxi Environm Engn Vocat Coll, Forestry Dept, Ganzhou, Peoples R China
关键词： 1; 3-diacylglycerol; enzymatic esterification; linoleic acid; modified camellia oil; structured oil
期刊名称：JOURNAL OF FOOD SCIENCE （ 影响因子：3.693； 五年影响因子：3.856 ）
ISSN： 0022-1147
年卷期：
页码：
收录情况： SCI
摘要： Converting triacylgycerols (TAGs) from edible oils and fats into structured diacylglycerols (DAGs) is meaningful for reducing obesity. Camellia oil, rich in linoleic acid, has the potential to form structured linoleic acid-1,3-diacylglycerol (LA-1,3-DAG) nutrients in the industry. In this research, the physicochemical properties of modified Camellia oil (MCO) by enzymatic esterification were analyzed by Gas Chromatography-Mass Spectrometry (GC-MS), Differential Scanning Calorimetry (DSC), High Performance Liquid Chromatography-Evaporative Light Scattering Detection (HPLC-ELSD), and Ultra Performance Liquid Chromatography-Tandem Mass Spectrometry (UPLC-MS/MS). The relationship between reaction conditions and the DAG compositions is disclosed using multiple factors. It is found that high constituents of DAG increase the melting and crystallization temperature of MCO, lipase Novozym 435 gives the best yield of targeted nutrients (DAG, 1,3-DAG, LA-DAG), and the mixture of lipases, Lipozyme TL IM and Lipozyme RM IM, shows a synergistic effect in the synthetic process of DAG. Subsequently, MCO containing 65.4% DAG, 54.7% LA-DAG, and 47.6% 1,3-DAG content at optimal conditions (2% enzyme dosage, 4 h reaction time, 2.4:1 substrate molar ratio, 25.8% t-butanol as solvent, 60 degrees C temperature) has been obtained and purified using silica column to obtain the final DAG oil containing 96.1% DAG, 64.7% 1,3-DAG, and 78.4% LA-DAG. High constituents of structured DAG oil rich in LA-1,3-DAG can be obtained by enzymatic esterification for industrial production.
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