29628.紫腳板薯色素的提取、理化性質(zhì)及體外抗氧化活性的研究

1、南昌大學(xué)碩士學(xué)位論文紫腳板薯色素的提取、理化性質(zhì)及體外抗氧化活性的研究姓名：詹太華申請學(xué)位級(jí)別：碩士專業(yè)：食品工程指導(dǎo)教師：鄧澤元陳武20080601ABSTRACTDioscoreabatatasDecne，anannualorperennialtwininglianaplant，belongstodioscoreabatatasfamilyItismainlydistributedintropicalandsubtropicalar

2、easmAfrica，SouthAmerica，andSoutheastAsiaDioscoreabatatasDecneisrichincarbohydrates，andalsocontainsprotein，variousvitamins，chemicals，indicant，andmucilagewhicharebeneficialtohumanbodyItisbrightred，andhasdevelopedrhizomesin

3、theshapeofasole，thusnamedItscolorsvaryfromwhitetopuce“)urple)Purpleonesindicatethattheycontaincertainpigments，belongingtoanthocyaninAnthocyanin，akindofflavonoidcompound，isallediblenaturalpigmentofwatersolubilityAtpresent

4、，fewresearcheshavebeendoneonthepigmentofDioscoreabatatasDecneDomesticresearcheshaveandextractionofitInthepaperthewriterhasmadebeenlimitedtotheseparationaninitialexplorationintotheseparationaIldextractionofthepigmentsinpu

5、rpleDioscoreabatatasDecne，andthestabilityandthebiologicalactivityofextracorporealantioxidationhavealsobeenstudiedinthepaper，whichhasprovidedatheoreticalfoundationonwhichtotakeadvantageofanthocyanin，anddevelopfunctionalit

6、yfoodsfromDioscoreabatatasDecneBasedonOrthogonalexperiments，thepaperfirststudiesthebesttechnologicalconditionsunderwhichtolixiviatepigmentsofDioscoreabatatasDecneTheresultsshowthatpureanthocyanincanbeextractedbyfiltering

7、steep，adsorbingcolophonydecompressionandcubagereduction，undertheconditionthat15percentofcitricacidethanolliquorselvesasthebestlixiviator，whichshouldbeheatupundertheconstanttemperatureof60“Cfor60minutes，andtheproportionof

8、generalmaterialsshouldbe1：10AtthesametimethepaperalsostudiesthestabilityofthepigmentinpurpleDioscoreabatatasDecne，showingitsstabilityundertheconditionofpH5liquidsItpossessescertainheatresistance，butthetemperatureshouldno

9、tbeover90。CIthasrelativelypoorlightfastnessMostmetalionswillnothavegreateffectsonthestabilityofthepigment，whileA13、Fe3dohavegreatimpacts，amongwhichA13、Fe3tendtoincreasetheabsorbencyofthepigmentInthepaper，twoextracorporea