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1、1cmFigure1AphotographofCortexMoutanCortexMoutan1.NAMESOfficialName:CortexMoutanChineseName:ChinesePhoneticName:Mudanpi2.SOURCECortexMoutanisthedriedrootbarkofPaeoniasuffruticosaAndr.(Fam.Ranunculaceae).Therootiscollectedinautumn,therootletsremoved,thebarkstrippedo
2、ff,thendriedinthesuntoobtainCortexMoutan.3.DESCRIPTIONQuailedorsemi-quailedshape,longitudinallyfissured,bothedgesofthecortexusuallycurvedinwards,varyinginsizeandupto20cminlength,5–16mmindiameter,1–4.5mminthickness.Externallydarkbrownoryellowish-brown,showingtransver
3、selenticels,outersurfacereddish-brown,pinkoryellow-whiteaftertheremovalofcork;theinnersurfacepalegreyish-yelloworpalebrown,withobviousfinelongitudinalstriation,usuallyshowingbrightcrystals.Texturehardandfragile,easilybroken,fracturerelativelyeven,palepinkorgreyish-w
4、hite,andmealy.Odour,aromatic;taste,slightlybitterandastringent.(Fig.1)4.IDENTIFICATION4.1MicroscopicIdentification(AppendixIII)TransversesectionThetransversesectionshowscorkconsistingofseveralrowsofcells.Cortexconsistingof10–21rowsofparenchyma,whichareprolongedtange
5、ntially.Pholembroad,occupyingupto80%inradialdirectionoftransversesection;phloemrays1–3cellswide.Clustersofcalciumoxalate,6–50µmindiameter,sometimescrystalcellsjoined,arrangedinrows,oronetoseveralclustersinonecell.(Fig.2)12CortexMoutanPowderWhitetogreyish-brown.Fairl
6、yabundantstarchgrainspresentinparenchymatouscells;simplegranulessuborbicularorpolygonal,3–27µmindiameter,withdotted,cleftorV-shapedhilum;compoundgranulescomposedof2–6units,showingablack,crossshapewhenexaminedunderapolarizingmicroscope.Clustersofcalciumoxalate6–50µmi
7、ndiameter,crystalcellssometimesjoined,arrangedinrowsoronetoseveralclustersinonecell;showingapolychromewhenexaminedunderapolarizingmicroscope.Corkcellsrectangular,slightlythick-walled.(Fig.3)4.2PhysicochemicalIdentificationProcedureWeigh1.0gofthepowderedsampleandputi
8、ntoa100-mLconicalflask,thenadd20mLofdiethylether.Shakethemixturefor2min.Filterandtransfer5mLofthefiltratetoatesttube.Evaporatetodrynessona
