微膠囊化薄荷油的制備.pdf

1、江南大學(xué)碩士學(xué)位論文微膠囊化薄荷油的制備姓名：朱衛(wèi)紅申請學(xué)位級別：碩士專業(yè)：食品科學(xué)指導(dǎo)教師：許時嬰20060601江南大學(xué)碩士學(xué)位論文AbstractMicroenc印sulation，whichtransf0蛐sliquidintoeasilyhalldledsolidpowder，hasbeengraduallywidelyusedinfoodindustr弘Microencapsulationstabilizest11ecore

2、material，contr01sthereleaseofthecorematerialandenhancesitsresistancetOheat，oxygen，moisture，a11dincompatibIecomponentsThispaperfocusedonthepreparationofencapsulatedmintoil、vitIldi行jremwallmaterialnleVolatilecomponentsofmi

3、nto訂weredete咖inedbyGC／MSThemintoilwasencapsulatedbyp—cydodextrin(pCD)，me0ptlmalpar鋤etersweredetemlinedbyonhogonalexperiments，andshowedasfollows：ratioofcoreandwallmateriaIl：8，4hr，50℃Yieldofenc印sulatedmintoilwaS9316％，aJldt

4、hemintoil10adingwas1035％(W／w)undertheoptimalconditionsGumambicandtwokindsofstarchoctenylsuccinates(HICAPl00alldNLOK)wereusedaswaIlmaterialtopreparethemicroencapsulatedminto訂byspraydryingTheyieldaJldenc印sulationemciencywi

5、thHI—cAPlooaswallmaterialwerehi曲erthaIlthose、vithgurn啪bicTheoptimalparaIlletersofenc印sulatedmintoilwithHI—CAPl00(40％mintoilloaded)wereobtainedbyorthogonalexperimemsandshowedasfollows：solidscontent45％(、卅w)，homogenizingpre

6、ssure35Mpa，dryerirⅡettemperature195℃Boththeenc印sulatedyielda11de伍ciencywere95％aboveInadditon，meretentionrateofenc印sulatedmintoil、vas9196％aRer6monthsstoredat40℃WitllHICAPl00aswaUmaterial，t11e91asstrallsitiontemperatureofe

7、ncapsuIatedmimoilmeasuredbyDSCwas53℃，whichindicatedtheencapsulatedmintoilcouldstoredatroomtemperatureandshowed900dstabili何TheresultsofGC—MSindicatedthatthemicmenc印sulationcoulde伍cientlypreVentthechangesofthev01atilecompo

8、nentsScalledwithscanningelectmnmicmscope(SEM)，themicrostructureofencapsulatedmintoilwasc鋤pact，whichcouldpreVentefficientIymeVolitiIizationofthemimoilduringtheperiodofstorageBothHI—CAPl00andN—LOKhadgoodemulsi母ingstabiliti

9、esThemintoilemulsionpreparedwithHI—CAPl00showedbetteremulsifyingstabilitythanthat、vithN—LOK，andthestabilityofemulsiondecreasedsli曲tlywiththeincreaseofthemintoiIHo、vever，homogenizingpressureshowed1ittlei11fluenceonemulsio

10、nstabili吼Thesubstitutede昏eeofHICAPl00washi曲erthan也atofN—LOK，ThemoleculeofHI—CAPl00hasmorchydrophobicgroup，a11dcouldreducetheimerfacialtensionmoree幣ciemly，whichcontributedtothestabilityofemulsionofmintoilHICAPl00absorbeda