大孔树脂对野菊花总黄酮吸附分离特性的影响

Food Science(2010)

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Abstract
选择12种大孔树脂,比较其对野菊花总黄酮的吸附和解吸性能。在此基础上,筛选出较优的3种大孔树脂,通过研究其静态吸附动力学特性,进一步筛选出适合分离野菊花总黄酮的理想树脂,并考察pH值和洗脱剂体积分数对其吸附容量和解吸率的影响。结果表明:XDA-1、LSA-21和AB-8树脂有较大的吸附容量和较高的解吸率,且其中XDA-1树脂显著优于另外两种,其吸附容量高达84.1mg/g、解吸率为96.2%,而且具有良好的静态吸附动力学特性,是更为适合吸附分离野菊花总黄酮的理想树脂。XDA-1树脂吸附分离野菊花总黄酮较合适的上样液pH值为4~5,洗脱剂为70%乙醇溶液。
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Key words
separation,total flavonoids,adsorption,macroporous resin,Chrysanthemum indicum L.
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