不同地区茶叶籽油活性成分的比较分析

摘要

The active constituents in tea seed oils from Zhejiang, Jiangsu, Hubei, Hunan, Fujian, Henan, Yunnan, Sichuan and Guizhou were compared and analyzed. The results showed that the con-tents of total phenols in tea seed oils from Sichuan, Guizhou and Yunnan were the highest, above 900 mg/kg,while the total phenols in tea seed oils from other six areas had no obvious difference (400-660 mg/kg);the content of VE in tea seed oil from Sichuan was the highest, reaching 68. 55 mg/100 g, but the content of α- VE with the strongest biological activity in tea seed oil from Jiangsu was the highest, about 31. 94 mg/100 g;squalene, triterpene like lupeol and four kinds of sterols substances (campester-ol, stigmasterol, lanosterol and sitosterol ) were detected in tea seed oils from the nine areas, and β-amyrin was detected in tea seed oils from all the nine areas except Hunan, Hubei and Fujian; besides, astaxanthin, a kind of carotenoid, was detected in tea seed oils from the nine areas;the contents of total sterols in tea seed oils from Sichuan and Guizhou were the highest, about 5 710. 4 mg/kg and 5 539. 3 mg/kg respectively. The comprehensive analysis result indicated that the tea seed oils from Sichuan and Guizhou with the highest active constituents contents had the best quality.%对浙江、云南、四川、江苏、湖南、湖北、福建、河南、贵州9个地区的茶叶籽油活性成分进行比较分析。结果表明,茶叶籽油中总酚含量以四川、贵州和云南最为突出,在900 mg/kg以上,其他地区差异不显著(400~660 mg/kg)；VE含量以四川茶叶籽油最高,可达68.55 mg/100 g,而江苏茶叶籽油中生理活性最强的α-VE含量(31.94 mg/100 g)最多；角鲨烯、三萜类物质羽扇豆醇与4种甾醇类物质(菜油甾醇、豆甾醇、羊毛甾醇和谷甾醇)在所有地区茶叶籽油中均被检出；除湖南、湖北、福建外,其他几个地区茶叶籽油中都含有β-香树脂醇；此外,在所有地区的茶叶籽油中都检出1种类胡萝卜素———虾青素；四川和贵州的茶叶籽油中总甾醇含量最多,分别为5710.4 mg/kg和5539.3 mg/kg。综合分析,四川、贵州的茶叶籽油中活性成分含量最高,品质最好。