2013•Heilongjiang yiyao kexueRequires access

Study on the extraction technology of flavonoids from Portulaca oleracea L

Chun-Yue Yu

Abstract

Objective: To optimize the extraction technology of flavonoids from Portulaca oleracea L.Methods: Optimize the extraction technology on indexes of quercetin,study the influence of reflux extraction and ultrasonic extraction on the extraction efficiency of flavonoids from Portulaca oleracea L.Results: The best method is reflux extraction and the optimal condition was as follows:The concentration of ethanol was 95%,the feed-liquid rate was 1:40,the extraction time was 1h,extraction times was 1 time;in this condition,the extraction rate of flavonoids was 0.76%.Conclusion: The method is feasible and can be used to extract the flavonoids from Portulaca oleracea L.

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Key concepts: Portulaca, Extraction (chemistry), Chromatography, Chemistry, Quercetin, Traditional medicine, Medicine, Biochemistry