| GC-MS测定绿茶及速溶绿茶的游离脂肪酸 |
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| 引用本文： | 朱旗,施兆鹏,童京汉,任春梅. GC-MS测定绿茶及速溶绿茶的游离脂肪酸[J]. 茶叶科学, 2001, 21(2): 137-139. DOI: 10.13305/j.cnki.jts.2001.02.014 |
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| 作者姓名： | 朱旗 施兆鹏 童京汉 任春梅 |
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| 作者单位： | 湖南农业大学食科院,湖南农业大学食科院,中国茶叶进出口公司,湖南农业大学理学院 湖南长沙410128 ,湖南长沙410128 ,北京100001 ,湖南长沙410128 |
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| 基金项目： | 国家重点科技项目 (攻关 )计划 85_51 3_2 3_0 6 |
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| 摘 要： | 以绿茶及速溶绿茶为材料 ,采用硫酸_甲醇甲酯化 ,经GC_MS能够较好地分离和分析茶叶中的游离脂肪酸 ,三氟硼酸甲酯化不适合茶叶脂肪酸的分析。速溶绿茶中游离脂肪酸的含量十分少 ,只有绿茶原料的0 5 %。
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| 关 键 词： | 速溶绿茶 游离脂肪酸 分析方法 |
| 文章编号： | 1000-369X(2001)02-0137-03 |
| 修稿时间： | 2000-12-11 |
Analysis of Free Fatty Acids in Green Tea and Instant Green Tea by GC-MS |
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| ZHU Qi ,SHI Zhao_peng ,TONG Jing_han ,REN Chun_mei. Analysis of Free Fatty Acids in Green Tea and Instant Green Tea by GC-MS[J]. Journal of Tea Science, 2001, 21(2): 137-139. DOI: 10.13305/j.cnki.jts.2001.02.014 |
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| Authors: | ZHU Qi SHI Zhao_peng TONG Jing_han REN Chun_mei |
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| Affiliation: | ZHU Qi 1,SHI Zhao_peng 1,TONG Jing_han 2,REN Chun_mei 3 |
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| Abstract: | The free fatty acids in green tea could be well separated and analyzed by GC_MS, which were methylated by refluxing with anhydrous methanol in the presence of H 2SO 4, and the methylation of F3PO3 was not suitable to the analysis of tea free fatty acids. There were little free fatty acids in instant green tea, and it was only 0 5% of free fatty acids in green tea. |
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| Keywords: | Instant green tea Free fatty acids Analysis method |
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