甜高粱莖稈采后生理特性及乙醇發(fā)酵工藝研究.pdf

1、新疆農(nóng)業(yè)大學(xué)碩士學(xué)位論文甜高粱莖稈采后生理特性及乙醇發(fā)酵工藝研究姓名：孟伊娜申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：食品科學(xué)指導(dǎo)教師：傅力201005IIStudiesonthePhysiologicalactersTechnologyofEthanolFermentationofPostharvestSweetSghumStalkAbstractThenewsghumNo.3No.4sweetsghumstalkedbyXinjiangAcademy

2、ofAgriculturalSciencewereusedasthetrialmaterialtheirphysiologicalparameterscontentincludingwatertotalsugarreducesugartotalaciditystarchfiberdehydrationraterespirationrateSucroseSynthase(SS)SucrosePhosphateSynthase(SPS)ac

3、tivitywerestudiedunderdifferentstageconditions(defoliationstdefoliationlieleafstleafliepyratype)bothindifferentgrowthperiods(jointingstagematuritystagefullripenessstage)in220daysstageperiods.Fermatationtechnologyalsowere

4、studied.Theresultsshowedthat:indifferentgrowthperiod:theparametersaboveexcepttheSSSPSactivityshowedanincreasingtendencyduringthewholegrowthperiodstheincreasingratewassignificantlyfromthejointingstagetothematuritystage.ho

5、weverbothSSactivitySPSactivitywerelowestinmaturitystagehighestinjointingstage.TheparameterstestedofNo.3newsghumweresignificantlyhigherthanNo.4newsweetsghumduringthewholegrowthperiods.Duringwholestageperiod:theparametersa

6、boveexceptreducesugartotalaciditycontentdehydrationraterespirationrateshowedadecreasingtendencythereducesugarcontentshoweda”doublepeak”tendencyuponthewholestagemethod.Theparameterstestedexceptdehydrationraterespirationra

7、teofNo.3newsghumweresignificantlyhigherthanNo.4newsweetsghum.Asthestagetimegoesonthecontentofparametersexceptthetotalaciditydehydrationraterespirationratefromhighesttolowestwasdefoliationstdefoliationlieleafstleafliepyra

8、type5thpyratype4thpyratype3rdpyratype2ndpyratype1stinthewholestageperiodwhiledehydrationrateshowedtheoppositetendency.Respirationrateofthewholestalktypeswashigherthanthepyratypeduringthewholegrowthperiods.theTotalacidity

9、contentofpyratypewashigherthanthewholestalktypesduringthewholestageperiodin0130dtotalaciditycontentshowedanincreasingtendencyin130220dthewholestalktypesshowedadecreasingtendencywhilethepyratypeshowedandecreaseincreaseten

10、dency.TheoptimalSolidStatefermentationconditionfthesweetsghumstalkare:inoculum5%(vw)fermentationtime48htemperature30℃thesweetsghumstalkwaterratio14:1pH4.00.3%(NH4)2SO40.2%KH2PO40.1%MgSO40.1%cellulase0.08%glucoamylasethee