油茶籽油及茶叶籽油特征组分分析与比较  

The Analysis and Comparison of Characteristic Components of Oil-Tea Camellia Seed Oil and Tea Camellia Seed Oil

作　　者：张东[1] 张东生[2] 薛雅琳[1] 钟诚[2] 徐冉[2] 朱琳[1] 

机构地区：[1]国家粮食局科学研究院,北京100037 [2]江南大学食品学院,无锡214222

出　　处：《中国粮油学报》2014年第12期69-72,共4页Journal of the Chinese Cereals and Oils Association

基　　金：公益性行业科研专项(2012104010-3)

摘　　要：研究比较了油茶籽油和茶叶籽油的脂肪酸组成、三酰甘油组成、甾醇、生育酚、角鲨烯等特征组分.结果显示：油茶籽油主要脂肪酸为油酸、棕榈酸和亚油酸;其单不饱和脂肪酸占77.50％～ 84.44％;茶叶籽油主要脂肪酸为油酸、亚油酸和棕榈酸;其饱和脂肪酸含量为18.86％～ 23.04％,单不饱和脂肪酸为56.53％～58.54％.2种油脂主要三酰甘油均为OOO、SLO、LOO,但相对比例各不相同;甾醇含量分别为1 099～2 298,499 ～927 mg/kg,主要组分为β-谷甾醇和△7-豆甾烯醇,占甾醇总量80％以上.油茶籽油和茶叶籽油中生育酚以α型为主,占总生育酚90％以上;前者角鲨烯含量为21 ～ 336 mg/kg,后者为108 ～198 mg/kg.研究可为油茶籽油和茶叶籽油的开发和应用提供基础数据支持.The characteristic components such as fatty acid composition, triacylglycerol composition, sterol, to- copherol, and squalene of oil - tea camellia seed oil and tea camellia seed oil were compared. The results showed that predominant fatty acids in oil -tea camellia seed oil were oleie acid, palmitic acid and linoleic acid, respectively; the percentage of mono- unsaturated fatty acid was 77.50%-84.44%. Oleic acid, linoleic acid, and palmitic acid were the main fatty acids in tea camellia seed oil ; the percentages of saturated and mono - unsaturated fatty acid were 18.86%-23.04% and 56.53%-58.54%. The major triglycerides in two oils were OOO, SLO and LOO, but the relative percentage of each triacylglycerol was different. The content of sterols in the oils was 1 099 -2 298 and 499 - 927 mg/kg ; the content of β- sitosterol and A7 - stigmastenol was 80%. α- Tocopherol was the main composition of total tocopherol and had a content of 90% in two oils. Squalene content in oil - tea camellia seed oil was 21 - 336 mg/kg while 108 - 198 mg/kg in tea camellia seed oil. The research provides basic data support for the development and application of oil -tea camellia seed oil and tea camellia seed oil.

关 键 词：油茶籽油 茶叶籽油 三酰甘油 脂肪酸组成 甾醇 

分 类 号：TS225.1[轻工技术与工程—粮食、油脂及植物蛋白工程] TQ646[轻工技术与工程—食品科学与工程]