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1、第32卷第5期中華中醫(yī)藥學刊Vol_32No.52014年5月CHINESEARCHfVESOFTRADITIONALCHINESEMEDICINEMav2014DOI:10.13193/j.issn.1673-7717.2014.05.080白芷香豆素微囊的制備及其體外釋藥研究姜建偉,章紅燕,何福根(浙江省腫瘤醫(yī)院藥劑科,浙江杭州310022)摘要:目的:研究白芷香豆素微囊的制備工藝,并考察其體外釋藥特性。方法:以包封率、載藥量為指標,采用復凝聚法制備白芷香豆素微囊,用Doehlert設計法對白芷香豆素的制備工藝進行優(yōu)化,用uV法測定
2、微囊在20h內(nèi)溶出的量并作釋放度考察曲線,且采用電鏡對其形態(tài)與粒徑進行考察。結(jié)果:白芷香豆素微囊的囊材囊心比、攪拌速度及體系的pH值對微囊的包封率與載藥量均有顯著影響,當囊材囊心比為4.3:1、攪拌速度為355r·rain~、pH值5.O時,制得的白芷香豆素微囊圓整光滑,無粘連,粒徑均勻,包封率可高達77.74%,載藥量為23.03%,囊徑在200Ixm以下,且有一定的緩釋作用。結(jié)論:復凝聚法制備白芷香豆素微囊工藝簡單、可靠,產(chǎn)品穩(wěn)定性好。關(guān)鍵詞:白芷香豆素;微囊;Doehlert設計;復凝聚法;體外釋藥中圖分類號:R283文獻標志碼:
3、A文章編號:1673—7717(2014)05—1197-03PreparationofAngelicaeDahuricaeCoumarinMicrocapsulesandStudyonItsReleaseBehaviorinvitroJIANGJianwei,ZHANGHongyan,HEFugen(PharmacyDepartment,ZhejiangProvincialTumorHospital,Hangzhou310022,Zhejiang,China)Abstract:0bjective:Tostudyandoptimizet
4、hepreparationtechnologyofAngelicaedahuricaeeoumannmicrocap·sules,andthentostudyitsreleasebehaviorinvitro.Methods:Takingtheencapsulationeficiencyanddrugloadingasin—dicators,theAngelicaedahuricaecoumarinmierocapsuleswerepreparedwiththecomplexagglutinationmethodandtheprepar
5、ationtechniqueofAngelicaedahuricaecoumarinmicrocapsuleswasoptimizedbyDoehlertdesign.ThedissolutionvolumeofAngelicaedahurieaecoumafinmicrocapsuleswithin20hoursandtheCHIVeofthereleasewasmeasuredbyul—travioletspectrophotometry,afterwardsitsmorphologyandparticlesizewerestudi
6、edbyelectronmicroscopy.Results:Theencapsulationratewassignificantlyrelatedtotheratioofcoatingmaterial,stirringspeedandthepH.ThehighestrateofproductionandtheminimaldiameterofmicrocapsuleswereobtainedwhentheratioofcoatingmaterialtoAngelicaedahu—rieaecoumarinwas4.3:1,thesti
7、rringspeedwas355revolutionsperminute,andthepHwas5.0.Theobtainedmicro—capsulesweresmoothroundcapsule—shaped,non—adhesions,withuniformparticlesize,andtheencapsulationeficiencywasupto77.74%,thedrugloading23.03%andthemicrocapsulediameterbelow200m,andcouldbeusedasthesustained
8、—releasepreparation.Conclusion:ComplexagglutinationusedtoprepareAngelicaedahuricaecoumafinmicro—capsule