超临界CO_(2)萃取石榴籽油及石榴酸甲酯富集  

Pomegranate Seed Oil Extracted by Supercritical CO2 and Enrichment of Punicic Acid Methyl Ester

作　　者：任小娜 李兴梅 吴江超 库尔班江·艾买提 REN Xiaona;LI Xingmei;WU Jiangchao;Kuerbanjiang·Amaiti(College of Life and Geographic Sciences,Kashi University,Kashi 844000,Xinjiang,China;Key Laboratory of Biological Resources and Ecology of Pamirs Plateau in Xinjiang Uygur Autonomous Region,Kashi 844000,Xinjiang,China)

机构地区：[1]喀什大学生命与地理科学学院,新疆喀什844000 [2]新疆帕米尔高原生物资源与生态重点实验室,新疆喀什844000

出　　处：《食品研究与开发》2024年第8期85-90,共6页Food Research and Development

基　　金：喀什大学校内课题(19⁃2645)。

摘　　要：采用超临界CO_(2)萃取技术从石榴籽中提取石榴籽油,对其脂肪酸和甘三酯组成和含量进行分析;通过单因素和正交优化试验研究尿素包合法富集石榴酸甲酯。超临界CO_(2)萃取技术与有机溶剂萃取相比更有利于获得高石榴酸含量的石榴籽油,石榴籽油中检测出14种甘三酯。尿素包合法富集石榴酸甲酯的最佳工艺为尿素包合温度5℃、包合时间20 h、尿素与脂肪酸甲酯的质量比1∶1、尿素和95%乙醇的质量比1∶5,此最佳包合条件下获得的石榴酸甲酯的含量为78.82%。It was extracted from pomegranate seeds by supercritical CO_(2),and the composition and content of fatty acids and triglycerides were analyzed.The enrichment of punicic acid methyl ester by urea inclusion was studied by single factor and orthogonal optimization experiments.Compared with organic solvent extraction,supercritical CO2 was more favorable to obtain pomegranate seed oil containing high punicic acid,where 14 tri⁃glycerides were detected.The optimal conditions for the enrichment of punicic acid methyl ester by urea inclusion were as follows:the inclusion temperature 5℃,inclusion time 20 h,mass ratio of urea to methyl ester 1∶1,and mass ratio of urea to 95%ethanol 1∶5.Under these conditions,the content of punicic acid methyl ester was 78.82%.

关 键 词：石榴籽油 石榴酸甲酯 尿素包合 石榴酸 超临界CO_(2) 

分 类 号：TS224.4[轻工技术与工程—粮食、油脂及植物蛋白工程]