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Position: Home > Articles > Extraction,Separation and Purification of Flavones in Onionskin Food and Nutrition in China 2012,18 (08) 50-54

洋葱皮中黄酮类物质的提取及分离纯化研究

作  者:
张仁堂;秦静;孙欣;林云良
单  位:
华中农业大学食品科学技术学院;山东农业大学食品科学与工程学院;山东省分析测试中心
关键词:
洋葱皮;黄酮;聚酰胺柱层析;HPLC;槲皮素
摘  要:
采用超声波辅助法提取洋葱皮中黄酮类物质,通过柱层析等方法进行分离纯化,利用高效液相色谱对黄酮类物质进行检测,在超声波辅助萃取洋葱皮中总黄酮的研究中,确定乙醇浓度80%、料液比1∶10、超声时间20min条件下对总黄酮提取率最高。获得总黄酮物质后采用萃取、聚酰胺柱层析进行分离纯化,获得不同浓度乙醇洗脱组分,建立HPLC方法为进样量5μL、检测波长360nm、甲醇∶水(含0.1%冰乙酸)=45∶55、柱温为室温。分离纯化中得到结晶,通过质谱、核磁共振鉴定此晶体物质为槲皮素。
译  名:
Extraction,Separation and Purification of Flavones in Onionskin
作  者:
ZHANG Ren-tang1,QIN Jing2,SUN Xin1,LIN Yun-liang3(1College of Food Science and Engineering,Shandong Agricultural University,Tai'an 271018,China; 2College of Food Science and Technology,Huazhong Agricultural University,Wuhan 430070,China; 3Shandong Analysis and Test Center,Jinan 250014,China)
关键词:
onionskin;flavones;polyamine column chromatography;HPLC;quercetin
摘  要:
This paper studied the technological process of extracting flavones from onionskin,established a HPLC method for determining the flavones in the extraction of the onionskin.The optimum ultrasonic extraction conditions for flavones were also established which were soak onion for 20min with 80% ethanol concentration and ratio of liquid to solid was 1∶ 10.In the study of the HPLC method for determining the flavones,we got the condition of a 5μL sample injected,detection was carried out at 360 nm,a mixture of methanol and water with 0.1% glacial acetic acid(45∶ 55) was used as mobile phase.In the course of separation and purification,we got the crystallization with high pure.By the way of MS and NMR,we knew this material was quercetin.

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