番茄紅素的提取與純化工藝研究.pdf

1、山東師范大學碩士學位論文番茄紅素的提取與純化工藝研究姓名：王鋒申請學位級別：碩士專業(yè)：物理化學指導教師：李志華20070420ABSTRACTLycopeneisanimportantcarotenoidandhasseveralphysiologicaifunctionsLycopenealsoisapotentialfunctionalnaturalcolorantLycopeneisacarotenoidwithauniquest

2、ructurethatconsistsofalongchainofconjugateddoublebonds，longerthaninartyothercarotenoidthisconfigurationisresponsibleforLycopene’Sabilitytoinactivatefreeradicalsandtoaccelerateconnectionandconductionamongcellsandtoprevent

3、andrepelcance：rInthisexperimentlycopenewasextractedfromtomatobyorganicsolventTheprocessoflycopeneextractioncouldbedividedintoextractingstageandpurificationstageTheroughextractingtechnologyoflycopenewasstudiedFirst，thebef

4、orehandmethodoftomatoWasgivenThenwestudiedtheeffectsofsomesinglefactorssuchasextractingtime，extractingtemperature)pH)extractingnumberoftimes，agitationsolventamount，metalions)oxidantreducingagentandlightontheextractionofl

5、ycopeneTheexperimentresultsshowthatlycopeneisratherstabilizationonoxidizerandreducerandquiteinstabilityOillightExtractingtemperatureandpHaretheimportantcomplicationonextractionoflycopeneAtlast，wechoseextractingtime，extra

6、ctingtemperature，pH，solventamountaspositivecomplicationsThemoreefficientextractingsolventandoptimumtechnologyconditionsweredeterminedbyL9(34)orthogonalexperimentsusingacetone，hexaneandchloroformasextractingsolventTheexpe

7、rimentresultsshowedthatacetoneismoreefficientasextractingsolventthanchloroformandhexaneTheefficientextractingconditionswereIOmlacetone／lgtomatopower45“C，pH60，3hAmongabovefactors，pHaffectstheextractionmostandsolventamount