苦荞麦麸皮中总黄酮的乙醇提取工艺研究.pdf

98 98 2005,, 食晶雨I学※工艺技术
苦荞麦麸皮中总黄酮的乙醇提取工艺研究
曹艳萍
(榆林学院化学系,陕西榆林 719000)
摘要:对苦荞麦麸皮[fJ总黄酮类物质的乙醇提取工艺进行了研究。以芦丁为对照品用吸光光度法,通过) L9(3
正交试验,优选了工业参数。结果表明: 对提取效果影响冈素依次为乙醇体积分数>提取时间>提取温度>料液
比。最佳提取工艺条件是:体积分数 65%乙醇、料液比 1:10、室温(25~30~C)T提取 6h,二级提取,提取得率为
%,纯度 65%。
关键词:苦荞麦麸皮;总黄酮;正交试验;提取工艺
StudyonExtractionTechnologyofTotalFlavonesinBitterBuck-wheatPeers
CAOYan—ping
(Department of Chemistry,Yulin(Department of College,Yulin 9000,China) 1 7
Abstract:Theextraction technology flavones totalofbuck-wheat bitterin peers was studied with e~onal
best conditions were chosen through L9(3 )orthographic experiments by adsorptive photospectrum based on rutin as standard standard as photospectrumrutin on based experimentsadsorptive by )orthographic L9(3werechosen through conditions best

thethirdoneswt~%ethonalasexlractor
withtheratioofl:10inmass atthetemperatureof25~30~C %withthe
purity of65%. purity
Key words:bitterbuckwheat peers; flavones;orthographictotal experiments;extraction technology
中图分类号: 文献标识码:A 文章编号:1002-6630(2005)03—0098-03
黄酮类化合物以前主要是指基本母核为苯基的色原原料苦荞麦麸皮干燥样品, 由定边鸿达荞麦加工
酮的化合物,现在则泛指两个