回用糖蜜酒精废液中砷、铅对酒精发酵的影响3

:2003-07-2832002(0235020)3Effectofarsenicandleadontherecyclingofslopfromalcoholicfermentationofsugarcanemolasses,,,WangJin,LiJianbin,LiuHuixiaandHeSilian(,530004)(BiotechnologyandSugarIndustryEngineeringCollege,GuangxiUniversity,Nanning,Guangxi530004):,,PbAsPbAs,PbAs,,As3+3mgöLPb2+21mgöL:;;;;;Pb;As:TS24913:A:1003-2673(2003)04-0014-03Abstract:Typicalmolassesofsulphitationandcarbonationprocessinsugarcanemillwasusedasmaterial,saccharifiedandfermentedintoalcoholadoptingthedoubleconcentrationflow.Themono2factortestforeffectofthetoxicion(Pb2+As3+)inrecycledsloponthealcoholicfermentationwascarriedout.Contentsoftoxicionfromdifferentmanufacturingprocessesweremeasuredadoptingatomabsorbingspectrummethod.Basingonthat,inthetestthedifferentcontentsofmetalironwereaddedinthefermentingmaterial.Theresultshowthattheseveraltoxicioninhibitedpointsinthealcoholicfermentationisasfollows:Pb2+21mgöL(gross),As3+3mgöL(gross).Keywords:Sugarcanemolasses,Slop,Fermentation,Inhibitionpoint,Toxicion,Pb,As1,,[1],,,()90120[2],PbAs,,,KCaPbAs,,[3,4]PbAs,Pb2+As3+,,,,2211(1):(2):212(1):(GBöT500911121996)(2)[5]41G1X1LightInd120034©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.72h100mL,95mL20213303015BxpH=315410(303015,72h)3311Pb2+Pb2+É,213212,,1pb2+,,,,,[6],Pb2+,,Pb2+,Pb2+,,Pb2+É1:Pb2+,,Pb2+,Pb2+,,Pb2+21mgöLÉPb2+012345mgöL0910111213(vöv)915491549130911191068182%-02152415151037155mgöL071115921(vöv)914091549140913091208184%--11490110631135196mgöL02125333741(vöv)101091809150914091349112%-21005100610061608180312AsAsÊ,213212,,2,,[7],,AsO43-ATP,,,122321,32,,32,ATP,,,[7],,,As3+,,As3+,As3+,,As3+Ê2:3mgöLAs3+,3mgöL,5120034G1X1LightInd1©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.ÊAs2+012345mgöL023456(vöv)916091609144910081948190%-01167612561887129mgöL057---(vöv)914091068164---%-31548109---mgöL038---(vöv)913691208104---%-117114110---1Pb2As313PbAs,,,,,,[6,7];,,Pb2+,Pb2+Zn(Ê)Pb2+,,,,,,,()4(1),213mgöL(2),,(22)61G1X1LightInd120034©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,,,,,,,,3038%,,,,,012%(500ppm)5500ppm,,,,,pH612,,2002ö2003:311,(),,312,,,313,3142;23152;316,317,60;;pH815;,4,,,,,,,(16)(3),,[1],,1[J]1,2001,(3):62641[2]1[J]1,1998,(6):31321[3],,1[J]1,2001,(6):76781[4]B.Maiorrella,G.Blanch,andC.Wilk.By2productInhibitionEffectsonEthanolicFermentationbySaccharomycescerecisiae.Biotechnol[J].Bioeng,1983,(125):14.[5]11[M],19841[6]1[M]1,20021[7]1[M]1,20001[8]1[M]1,20021[9]1[J]1,2000,(2),1011122G1X1LightInd120034©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.