花饮料中沉淀成分的分析

312()Vol.31No.220034Jour.ofNorthwestSci2TechUniv.ofAgri.andFor.(Nat.Sci.Ed.)Apr.2003X,,,(,712100)[],,,,,;0.15gökg0.25gökg,;0.60gökg,[];;;;;[]TS275.4[]A[]167129387(2003)0220133204,,,,,[15],[67],,[4,6],1997,,,,,,,,,11.1,,:25.45gökg,11.78gökg,13.27gökg,23.38gökg1.21.2.1:333333=110(),50751h,4,10Lm,0.0210Lm;0.0010.02Lm1.2.2,(3),6,(),1d,,,,1.2.32,,2,3,2.3gökg,3.1gökg,2.3gökg+3.1gökg,34,24h1.2.4,X[]2002204203[](1971-),,,,,,[8],,(600nm)1.2.5,,721,,,,211Table1Thecontentofprotein,pectin,tannicacidandmineralinsampleSampleö(mgg-1)Proteinö(mgg-1)Pectinö(mgg-1)Tannicacidö(mgg-1)Mineralö%TransmittanceFiltrateofextraction1.943.0992.311.06717Unrefinedfiltrate0.990.9621.470.99964Filtrateofmicrofiltration0.680.8001.120.96973Filtrateofultrafiltration0.570.4830.630.93694Semifinishedproducts2.810.2880.611.77290Drink1.980.2080.461.77192:4Note:Thetestresultisthemeanof4repetitions.2.11,1.94mgög,,48.97%,,,(10Lm),0.0210Lm,0.0010.02Lm,,,,,,,N,,,,,(pH=3.5)Fe2+,,,N,N,,2.21,0.1gökg,(),3.099mgög,,70%,,,,,,,,1,,,,,,,,,,2.31,,,,,,,,,,0.0010.02Lm,431()31,,,,,,,2.41,,,,,,,,2.524h3,424h,,,,,,2.61,,,,,,90%33.1,,,,,,,,,,,0.60gökg,(115,10s),,,,0.15mgökg,3.2,,,,,,,,,,,,,0.25mgökg,3.32,,,,,,,,,,,,,,,,0.60gökg,3.4,,,5312:,4,0.15gökg0.25gökg,,;0.60gökg,(115,10s),[][1].[J].,1992,(1):30-32.[2].[J].,1994,(6):62-63.[3].[J].,1996,(1):38-40.[4].[J].,1993,(4):67-69.[5].[J].,1992,(11):53-56.[6].[J].,1990,(7):12-14.[7].[J].,1992,(12):37-39.[8].[J].,1992,(6):50-54.ThestudyofdepositinflowerdrinksLUOAn-wei,LIULin-wei,XUHuai-de,JIANGLi(CollegeofFoodScienceandEngineering,NorthwestSci2TechUniversityofAgricultureandForestry,Yangling,Shaanxi712100,China)Abstract:Tofindtheingredientsofdepositinflowerdrinks,andtofindthemethodstopreventde2posit,inthisexperiment,westudiedtheprotein,tannicacid,pectin,mineralinflowers,filtrateanddrinkwhichwouldleadtodepositindrink.Theresultisthattheprotein,tannicacidandpectincausedeposit.Ifweadd0.15gramproteinase,0.25grampectinaseand0.6grampolyvinylpyrrolidonetoonekilogramfil2trateofextraction,wecanpreventthedepositinflowerdrinks.Keywords:driedflowerdrinks;protein;tannicacid;pectin;minineral;deposit631()31