胡蘿卜渣的干燥方法及其類胡蘿卜素提取工藝研究.pdf

1、西北農(nóng)林科技大學(xué)碩士學(xué)位論文胡蘿卜渣的干燥方法及其類胡蘿卜素提取工藝研究姓名：趙永彬申請學(xué)位級(jí)別：碩士專業(yè)：蔬菜學(xué)指導(dǎo)教師：尹明安張學(xué)杰20050601STUDYoNTHEDRYINGMETHoDoFCARRoTPOMACEANDTHEEXTRACTINGTECHNoLoGYoFCARoTENoIDSABSTRACTCarotenoids，akindoffunctionalpigment，wasfocusedonandwidelj，us

2、edinthefieldoffood，pharmaceuticals，feedingstuffandcosmeticIntermsofintegratedexploitationandutilizationforcarrot，thedryingmethodofcarrotpomaceandtheextractingtechnologyofcarotenoidsinthepomacewerestudied1)Thedryingmethod

3、ofcarrotpomaceThisresearchfocusedonthedynamiccurveofthewaterandcarotenoidscontentinthepomaceduringthedryingprogress，comparingtheeffectofhot—airdrying，vacuumdrying，andcombineddryingtechniquesTheresultshowedthattheoptimalw

4、ascombineddryingtechnique：firstdryingthecarrotpomacein85。Chot—airfor45minutes，andthenvacuuln75℃dryingWhenthewatercontentwas8％，thetimetakenwas135minutesandtheloserateofcarotenoidswas21％2)TheextractionofcarotenoidsDrycarro

5、tpomacewastakenasexperimentalmaterialOrganicsolventandsupercriticalC02fluidwereusedtoextractthecarotenoidsinit，andthetwoextractingtechniqueswerecomparedForsolventcarotenoidsextraction，themainaffectingfactors，suchassolven

6、t，grindinggranularityliquid—solidratio，extractingtimes，temperature，maddistillingtime，werestudiedBasedonthesinglefactorexperiment，thethree—factorquadricuniversalrotationalcombinationdesignwasadoptedtostudytheeffectsoftemp

7、erature，liquid—solidratioandgrindinggranularityoncarotenoidsextractionrateTheresultshowedthattheoptimizetechnologyforcarotenoidsextractionfromcarrotpomacewas：ethylacetate／ethanol(2：1，v／v)assolvent，008mmgrindinggranularit

8、y57“Ctemperature，15：1liquid—solidratio，and2timesextractionwith60minpertimeSupercriticalC02fluidextractionisakindofnewextractingtechnologyBasedonthefundamentalprincipleofthetechnologyextractingpressure，extractingtemperatu

9、re，extractingtime，grindinggranularityandC02flowratewerestudiedThefourfactorquadricuniversalrotationalcombinationdesignWasadoptedtostudytheeffectofgrindinggranularity，temperature，pressureandtimeonthecarotenoidsextractionw