超臨界萃取技術提取煙草中茄尼醇的工藝研究.pdf

1、天津大學碩士學位論文超臨界萃取技術提取煙草中茄尼醇的工藝研究姓名：康鋒申請學位級別：碩士專業(yè)：化學工藝指導教師：呂惠生20040701ABSTRACTABSTRACTSolanesolisahighaddedvalueproductwhichhasremarkablemedicalefectssuchasdiminishinginflammationhemostariaandantibacterial.Asadditionitisani

2、mportantmaterialofmedicinemonomersandintermediatesforthesynthesisofvitaminK2andcoenzyneQo.Solanesolisusuallyproducedfromtobaccoinwhichthecontentis0.4%^2.6%.Thesolanesolfromtraditionalproductiontechnologyisextractedbyorga

3、nicsolventwhichhasanumberofdisadvantagessuchashighoperatingtemperaturehighsolventconsumptionenvironmentalpollution.SupercriticalC02extractionisahighlyefectiveenvironmentallybenighseparationtechnologybywhichtheresearchesa

4、ndapplicationsonextractingmedicalefectivecomponentsfromnaturalherbshaveachievedsignificativesuccess.InthispaperethanolischoosedastheentrainertothesolanesolsupercriticalCOextractionexperimentsbySoxhletextraction.Theoptimu

5、mconditionsofsupercriticalC02extractionaredeterminedbyorthogonalexperiments:pressuretemperatureentrainerflowrateC02flowrateandoperationtimeare18MPa540C3留min10gminand3hoursrespectively.Iritherangeoftheexperimentstheefects

6、ofeachfactortotheextractionyieldandselectivityarestudiedbyorthogonalexperiments:pressureentrainerflowratetemperature.ItisshownthattheextractionyieldofsupercriticalC02extractionishigherthanitofthetraditionalproduction.Sot

7、hetechnologysupercriticalC02extractionhasagreatadvantageandagoodindustrialprospect.InaccordancewiththeresultsoforthogonalexperimentsANNtechnologyisusedtotobaccosimulatethesupercriticalC02extractionprocessofextractingsola

8、nesolfromThe3222EBPmodelisbuiltup.Thetrainingerroris0.0707%andthetestingerroris0.0899%.Thereserachprovidesthetheorybasistothedesigningandoptimumtobacco.ofthesupercriticalC02extractionprocessofextractingsolanesolfromKeywo