| 乙醇水剂法提取武夷水仙茶叶籽油及其品质分析 |
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| 引用本文： | 于立志,刘奇琳,张婷婷,傅春金. 乙醇水剂法提取武夷水仙茶叶籽油及其品质分析[J]. 热带作物学报, 2021, 42(4): 1120-1126. DOI: 10.3969/j.issn.1000-2561.2021.04.031 |
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| 作者姓名： | 于立志 刘奇琳 张婷婷 傅春金 |
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| 作者单位： | 武夷学院茶与食品学院/中国乌龙茶产业协同创新中心,福建武夷山 354300;上海海洋大学食品学院,上海 201306;武夷学院茶与食品学院/中国乌龙茶产业协同创新中心,福建武夷山 354300 |
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| 基金项目： | 福建省教育厅中青年教师教育科研项目(JAT170583);武夷学院校科研基金资助项目(XD201802) |
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| 摘 要： | 以武夷水仙茶叶籽为原料,采用乙醇水剂法提取武夷水仙茶叶籽油,通过单因素试验考察了提取温度、料液比、乙醇浓度和pH对提取率的影响,并采用正交试验设计优化了提取工艺条件.结果显示,武夷水仙茶叶籽油最佳提取条件为乙醇浓度30％(V/V)、料液比1:7、pH 9、提取温度60℃,在该条件下武夷水仙茶叶籽油提取率为93.61％....
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| 关 键 词： | 武夷水仙茶籽 茶叶籽油 乙醇水剂法 提取 品质 |
| 收稿时间： | 2020-03-24 |
Extraction of Camellia Oil from Wuyi Shuixian Tea by Ethanol and Quality Analysis |
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| YU Lizhi,LIU Qilin,ZHANG Tingting,FU Chunjin. Extraction of Camellia Oil from Wuyi Shuixian Tea by Ethanol and Quality Analysis[J]. Chinese Journal of Tropical Crops, 2021, 42(4): 1120-1126. DOI: 10.3969/j.issn.1000-2561.2021.04.031 |
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| Authors: | YU Lizhi LIU Qilin ZHANG Tingting FU Chunjin |
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| Affiliation: | 1. College of Tea and Food Science, Wuyi University / Collaborative Innovation Center of Chinese Oolong Tea Industry, Wuyishan, Fujian 354300, China2. College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China |
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| Abstract: | The extraction of camellia oil of Wuyi Shuixian tea was carried out by aqueous ethanol. The effects of extraction temperature, ratio of material to liquid, concentration of ethanol and pH on the extraction rate were investigated by the single factor experiment. The orthogonal experiment design was used to optimize the extraction conditions. The results showed that the best extraction conditions were ethanol concentration 30% (V/V), material to liquid ratio 1∶7, pH 9, extraction temperature 60 ℃, under which the extraction rate of camellia oil was 93.61%. 18 kinds of fatty acids were detected in the extracted camellia oil from Wuyi Shuixian tea, mainly oleic acid (51.77%), linoleic acid (23.14%), ΣSFA∶ΣMUFA∶ΣPUFA = 1∶2.64∶1.27, and all physicochemical indexes measured meet the national standards. The results show that camellia oil from Wuyi Shuixian tea is a kind of plant edible oil with high nutritional value. The conclusion could provide theoretical basis for the extraction and quality evaluation of tea seed oil in Wuyishan tea production area. |
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| Keywords: | Wuyi Shuixian tea seed tea camellia seed oil aqueous ethanol methodology extraction quality |
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