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OnExtractionofGeneralFlavonoidsfromEcliptaAlbawithPropylAlcoholandAmmoniumSulfateAqueousTwophaseSeparationandUltrasonicIntegratio

  

  1. 1.FacultyofEnvironmentalEngineering,KunmingMetallurgyCollege,Kunming650033,China;2.SchoolofChemistryand
    Biotechnology,YunnanNationalitiesUniversity,Kunming650031,China
  • Online:2010-09-30 Published:2010-09-30

Abstract: Ultrasonicextractiontechnology,integratedwithpropylalcoholandammoniumsulfateaqueous twophaseseparationwasusedtoextractgeneralflavonoidsfromEcliptaalba.Theoptimumextraction conditionsfromsinglefactorexperimentwere:theamountofammoniumsulfatewas12% (W %);pro pylalcoholoccupied50%;massandliquidratiowas1∶30andultrasonicextractionwas30min.Then, theaverageyieldofgeneralflavonoidswas422%,whichwasbetterthanthatfromheatingrefluxex traction.

Key words: Ecliptaalba, aqueoustwophase, ultrasonicextraction, generalflavonoids

CLC Number: