陰離子多糖對大豆分離蛋白功能特性的影響.pdf

1、河南工業(yè)大學碩士學位論文陰離子多糖對大豆分離蛋白功能特性的影響姓名：熊拯申請學位級別：碩士專業(yè)：糧食、油脂與植物蛋白指導(dǎo)教師：郭興鳳20070501AbstractTheinfluenceofanionicpolysaccharidesonemulsificationandgelpropertiesofSPIanditsapplicationinmodelsoymilkwcTestudied111eresultsshowedthatth

2、efracturabilityadhesivenessandhardnessofgelofSPIcarrageenanSPIxanthangumandSPlsodiumalgaaciddecreasedbutspringinessandcohesivenessdidnotchangeverymuchSotheeffectoftheformingconditionsoftheSPIcarrageenangelOnthetexturepro

3、pertiesWaSresearchedAlongwiththepHincreaSing，thefracRnabilityandhardnessofgelincreasedandthefraeturabilitychangedmoreobviously；TheadhesivenessandhardnessofgelincreasedgraduallywiththeadditiveamountincreasedofNaCl，butthef

4、racturabilityincreaseedfirstlyandthenlowered；theinfluenceoftemperatureonthetexturepropertiesofgelWasobviousbutitwasnotdifferenttoeachOnthebasisofsiglefactorexperimentRSMWasusedtooptimizetheconditionsForthemaxinmmfiactura

5、bility，theconditionsWereearrageenanO3％，NaCI5％，pH8andtemperature85℃；ForthemaximumhardnesswfffecarrageenanO3％，NaCI5％，pH8andtemperature90℃；ForthemaximumadhessivenesswereNaCI5％，pH65andtemperature90“CTheeffectofxanthanontheem

6、ulsionstabilityofSPIWasobviousalsoWhentheadditionofxanthanWaS02％theemulsionstabilityindex(ESI)ofSPIxanthansystemwasmaximumAlong、ⅣitlltheincreasingofpHtheESIofSPIxanthansystemincreasedgradually；WhentheadditionofNaClwas3％t

7、heESIofSPlxanthansystemWasmaximum；n圮temperaturedidnothaveobviouseffectOnESITheresultsofRSMshowedthattheSPIxanthansystemhadthebestESIonNaCl3％pH8andxanthan02％Amongthethreeanionicpolysaceharidesxanthangumhadthebestinfluence

8、ontheSPIemulsionModelsystemstudyshowedthattheprecipitationofthemodelsoymilkwasminimumwhenadditionofxanthangumWasO1％WhentheadditionofgumisO10％andtheratioofxanthangumandsodiumalgaacidWas3：2，themodelsystemhadbeststabilityTh

9、einteractionofSPlanionicpolysaccharideWasstudiedandtheresultshowedelectrostaticeffectvolumeexcusionhydrogenbondandhydrophobicinteractionwcrethemaininteractionofSPⅢonicpolysaccharideKeywords：SPIanionicpolysaccharideproper