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机构地区:[1]青岛科技大学化工学院,山东青岛266042 [2]青岛市海泊河污水处理厂,山东青岛266021
出 处:《林产化学与工业》2013年第5期83-87,共5页Chemistry and Industry of Forest Products
基 金:山东省中青年科学家科研奖励基金(BS2009SW033);青岛科技大学科研启动基金项目(qust20071217)
摘 要:采用加压技术提取菊花中黄酮类成分,在单因素试验的基础上,利用正交法优化菊花中黄酮类成分的提取工艺,并研究加压提取技术对菊花中黄酮类成分的抗氧化活性的影响。结果表明,采用60%的乙醇,在70℃、料液比1∶60(g∶mL)、压力0.25 MPa下,加压提取40 min,得率为8.07%;同时,与回流提取法相比,加压提取法对菊花中黄酮类成分的抗氧化活性没有影响。Flavonoids were extracted from the Chrysanthemum monfolium Ramat by pressurized liquid extraction. Conditions including extraction temperature, ratio of material to liquid, the ethanol concentration, extraction time, and extraction pressure were studied by using single factor analysis method. The optimal process conditions were obtained by orthogonal analysis as follows: the extraction temperature 70 ℃, ratio of material to liquid 1 : 60, the ethanol concentration 60 %, extraction time 40 min and extraction pressure 0.25 MPa. The yield of extraction was 8.07 %. Compared with the flavonoids extracted by traditional refluxing extraction , the flavonoids extracted by the pressurized liquid extraction had a similar elimination function on DPPH. radical with the traditional refluxing extraction.
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