学术
摘 要:
目的：研究竹康宁中竹叶总黄酮的提取及测定方法。方法：在单因素试验的基础上，采用L9（3^4）正交设计对乙醇回流提取法和硝酸铝比色测定法进行试验。结果：确定了乙醇回流提取法的最佳提取工艺是：70％乙醇，料液比1：30，90℃回流提取2次，每次2h。比色法测定3批次竹康宁中的竹叶黄酮，回收率为88．0％～92．0％，RSD为1．3％～2．2％，样品含量在5．1％～5．3％之间。结论：本方法简单，易于推行，结果令人满意。[著者文摘]
文章出处:
《中国食品添加剂》-2008年1期 -164-166页
栏目信息:
分 类 号:
文献标识码:
A
文章编号:
1006-2513（2008）01-0164-03
Study on the methods of extract and determine of bamboo flavone from bamboo leaf essence
GONG Wei-na, YU Hui-chun, CHEN Wei（1. Yantai Ecnomic Technoic Development Zoon Hygiene ＆ Epidemic Station, Yantai 264006;2. Yantai Changyu Pioneer Wine Co. , LTD. , Yantai 264006）
Abstract:
Objective： To study on the methods of extract and determine of bamboo flavone from bamboo leaf essence. Methods： On the basic of monofactorial tests, the methods of extract and determine of bamboo flavone from bamboo leaf essence were studied by the L9 （3^4） orthogonal examination. Results ： The best ethanol circumfluence extraction conditions were as follows： leaves： extraction liquid （70% ethanol） = 1 ： 30; circumfluence extraction for twice at 90℃ and 2 hours each time. Three batchs bamboo leaf essence were determined by colorimetry. The recoveries were between 88. 0% and 92.0% and the RSD were between 1.3% and 2. 2%. The content of bamboo flavonoids in them were between 5.1% and 5.3%. Conclusuons ： The results are satisfied and the methods are worthy to spread with its easy operation.[著者文摘]
Key words:
bamboo leaf essence; bamboo flavonoids ; extract; determine ; colorimetry
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