一株產(chǎn)色素細菌的鑒定及所產(chǎn)色素性質(zhì)的研究.pdf

1、山東輕工業(yè)學院碩士學位論文一株產(chǎn)色素細菌的鑒定及所產(chǎn)色素性質(zhì)的研究姓名：郭鳳華申請學位級別：碩士專業(yè)：發(fā)酵工程指導教師：劉天明20080614摘要ABSTRACTThepigmentincludesnaturalpigmentandsyntheticpigmentInrecentyears，Sudan，malachitegreen，andothercommonlyusedsyntheticpigmentincidentsalsocaus

2、edalotoffoodsafetyalerts；whichthepeopleofpigmentsecurityconcemshavegraduallydeepenedButnaturalpigmentshascontinuouslydemonstrateditsownbeneficialtohumanhealthofthemanyuniqueadvantages：mostnaturalpigmentfromedibleplants、a

3、nimalsandmicroorganisms，safeandnontoxic；manynaturalpigmentscontainthenecessarynutrientstohumanoritselfisavitaminorthematerialwithvitaminnatures；somenaturalpigmentshavepharmacologicaleffectsandcantreatsomediseases；natural

4、pigmentcolorsalenatural，Call’beeasilyaccepted，andsomealsohavenicesmell，addedtothefoodwillbringahappyfeelingTherefore，moreandmorepeopleliketousethenaturalpigmentsHowever，thenaturalpigmentalsohasitsownshortcomings：ontheone

5、hand，thenaturalpigmenthaspoorstabilityandexpensive；ontheotherhand，mostofthenaturalpigmenttodayusedisbeenextractedfromplanttissue，atthesametimetheplantingisimpactedbytheclimateandoccupieslotsofland，whichRestrictitsExtensi

6、veuseDevelopmentsofnewsourcesofnaturalpigments，inparticularlytheUSeofmicrobestoproduce“naturalpigmentshavecausedwidespread、C0nCeInSInthiswork，abacteriawhichCanproducegreenpigmentisolatedfromsoilisstudiedFirstofall，condit

7、ionsofthestraintoproducethepigmentwereexploredandfoundthatpotatomedium，staticculture，glucoseorsucrosechoosecarbon，nitrogenchooseyeast(orcream)，cultureconditionsforthetemperatureof28℃，pHabout6，theculturetimeabout72hthesta

8、inwillproducethelargestpigmentSecondlyTheextractionandseparationofthepigmentwerestudied，wehaveusedorganicsolventextraction、activatedcarbonadsorption、paperchromatographyandothermethods，thispigmentiswatersolubleandCannotdi

9、ssolveinmostorganicsolvents，weextracttwokindsofpigments：theblueoneandtheyellowoneBothofthepigmentsextractedCannotheeasilydamagedbythehightemperature，pH，light，oxidantsandreducingagents，metalionsfactorsFinallywedosomephysi