苦楝樹(shù)皮中苦楝素提取及提取液分離的研究.pdf

1、合肥工業(yè)大學(xué)碩士學(xué)位論文苦楝樹(shù)皮中苦楝素提取及提取液分離的研究姓名：魏先霞申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：化學(xué)工程指導(dǎo)教師：崔鵬20100401StudyonseparationandpurificationoftechnologyandDroces$oftoosendaninextractionsolution一一●‘o‘ABSTRACTForAnhuirealestatenaturalplantNeemtrees，Soxhletultras

2、oundmethodfromtheNeemtreebarkextractactiveingredientsToosendaninmulti1evelfilmMacroporouscombinedprocessoftheextractwereisolated，andtostudytheactiveingredientsfromassociatedwiththeseparationmechanismandtheorySoxhletultra

3、soundcombinedmethodtoextractfromthebarkofMeliaazedarachLOptimizedconditionswere：extractionsolvent70％ethanol／watersolution，solidtoliquidratioof1：15gmL“1，refluxcycle11min，extractiontime3h，ultrasonicpower100W：ultrasonicfreq

4、uency40kHz，undertheconditionsofextractionrateWas1789％Aftertheextractconcentratedbydistillationto50mLnbutanolextractionof24h，extractionrateWas9812％Respectively045lam20～50KDa1OKDamultistagefiltrationultrafiltrationmembrane

5、combinedprocessandmulti—level—combinedtechnologymacroporousextractToosendaninstudywereisolatedCombinedinamultistagemembraneprocess，theoptimaloperationaltemperatureof45℃，pressureofO10MPapHvalue70solutionundertheconditions

6、ofthetransferToosendaninWas7250％，impurityremovalrateof9569％purityToosendaninincomeincreased1875％Inthemultilevelfilmcombinationofmacroporousresinadsorptionprocess，focusingonthestaticadsorptionanddynamicadsorptionanddesorp

7、tionprocesses，optimizationofS8macroporousresincombinedprocessandtheparameterswerestudiedintheoptimizationoftheadsorptionwashoffconditionsthepurityToosendaninfromO96％to862％SeparationofmicromembraneextractionToosendaninobj

8、ectofstudytheresistanceofmicrofiltrationbasedontheestablishedpartoftheblockmodel；Optimaloperatingconditionsofexperimentalresultsverifytheaccuracyofthemodeltodeterminethescopeofapplicationofthemodelisasfollows：pressureO06

9、～O10MPatemperature25～55℃pHvalueof30to70TheprocessandkineticmodeloftoosendaninextractionformChinaberrybarksusingsolutionextractionmethodwasstudied，andmakesuretheprimaryparameterintheequationtestifythereliabilityofthekinet

10、icmodelFoundthat，withinthediffusionprocessisToosendaninextractionprocesscontrolsteps，withinthespreadincludesthefollowingtwoprocesses：TheresultshowedintemaldiffusionprocessiSthecontrolstepsofthetoosendaninextractionproces