| 普洱茶茶褐素的分级及相关性质初步研究 |
| |
| 引用本文： | 杨新河,王丽丽,黄建安,吴文亮,刘仲华.普洱茶茶褐素的分级及相关性质初步研究[J].茶叶科学,2011,31(3):187-194. |
| |
| 作者姓名： | 杨新河 王丽丽 黄建安 吴文亮 刘仲华 |
| |
| 作者单位： | 1. 湖南农业大学茶学教育部重点实验室, 湖南 长沙 410128; 2. 孝感学院生命科学技术学院, 湖北 孝感 432000; 3. 国家植物功能成分利用工程技术研究中心, 湖南 长沙410128 |
| |
| 基金项目： | 科技部支撑计划重大项目(2007BAD58B00-03); 云南省政府茶叶专项(2007YNCXB-01-01) |
| |
| 摘 要： | 普洱茶水提物依次经氯仿、乙酸乙酯、正丁醇萃取后剩余的水层色素-茶褐素上羟丙基葡聚糖凝胶（sephadex LH-20）柱,以丙酮-水溶液进行洗脱,按照色素条带分别收集得到级分并初步研究它们的理化与光谱性质。结果表明,以40%丙酮-水溶液为洗脱剂,流速为0.05BV/h时,茶褐素的分级效果最好,柱中呈现6条明显的条带,它们的色差参数值、还原力、pH值、常规成分含量、紫外-可见光谱扫描、红外光谱扫描及稳定性等存在差异。该研究进一步表征了普洱茶茶褐素组成与性质的复杂性,同时为深入研究茶褐素的生物活性与化学成分的本质奠定了基础。
|
| 关 键 词： | 普洱茶 茶褐素 分级 性质 |
| 收稿时间： | 2010-12-13 |
Preliminary Study on Fractions and Correlative Properties of Theabrownin from Pu-erh Tea |
| |
| YANG Xin-he,WANG Li-li,HUANG Jian-an,WU Wen-liang,LIU Zhong-hua.Preliminary Study on Fractions and Correlative Properties of Theabrownin from Pu-erh Tea[J].Journal of Tea Science,2011,31(3):187-194. |
| |
| Authors: | YANG Xin-he WANG Li-li HUANG Jian-an WU Wen-liang LIU Zhong-hua |
| |
| Institution: | 1. Key Lab of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410128, China; 2. School of Life Science and Technology, Xiaogan College, Xiaogan 432000, China; 3. National Research Center of Engineering & Technology for Utilization of Botanical Functional Ingedients, Changsha 410128, China; |
| |
| Abstract: | The water extract of pu-erh tea was extracted with chloroform,ethyl acetate,n-butanol in turn.The remaining water pigment-theabrownin obtained was installed in hydroxypropyl glucan gel(sephadex LH-20) column with acetone-aqueous solution for elution and the fractions of theabrownin were collected respectively and their physico-chemical and spectral properties were studied preliminarily.The results indicated that the 40% acetone-aqueous solution was the optimum eluent and flow was 0.05 BV/h and classificatio... |
| |
| Keywords: | pu-erh tea theabrownin fraction property |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《茶叶科学》浏览原始摘要信息 |
| 点击此处可从《茶叶科学》下载免费的PDF全文 |
|
