3、ws:Houttuyniacordatawasextractedwithultrasonictechnologyatsolid-liquidrationof1:30,60minandprecipitatedwith90%ethanol.Thepolysaccharidesyieldandcontentwere14.61%and12.22%,respectively.ConclusionTheoptimumpreparativeprocedureissimple,quicklyandhighlyefficient. Ke