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鳕鱼中多磷酸盐添加工艺的分析-analysis of adding process of polyphosphate in cod
AStudyofAdditiontechniqueofPolyphosphatesonPollockAbstractPolyphosphatesarewidelyusedinaquaticproductsaswater-retainingagent.Butifthephosphatesarenotusedproperly,iteasilycausesaproblemofphosphateexceedinglimits.Theseafoodproductsfromourcountryarealertedbyauthoritiesoftheimportingcountry.Theabuseofpolyphosphatescausesabadeffectonsensoryqualityofaquaticproducts.Thisisoneofreasonsofso-calledfilthysubstancebyFDA.Sotheproblemofpolyphosphatesexceedinglimitsisveryimportance.Itcausesabadeffectonaquaticproductsimportedtoabroad.ThispaperusesPollockexportedfromRussiaasobjectsofstudy.Sodiumtripolyphosphatewhichusuallyusedbyaquaticenterpriseassignal-ingredientwater-retainingagentisusedinthisexperiment.ThechangesbetweenconcentrationofSTPPandweightingpercentageoffillets,residueofSTPPinfilletsareinducedbymeansofsignal-factorexperiment.Thesecondsignal-factoristostudytheeffectofconcentrationofsolution,soakingtime,temperatureofsolutionandtherateinsolutionandfilletonweightingpercentageandorganolepticqualityoffillets.Basingonthesestwosignal-factorexperiments,thispaperusestheincreasingweightinfilletsaftersoaking,drippingwaterafterthawing,drippingwaterafterboiled,andphosphateresidueasindexinorthogonalexperimentL9(34)study.Therangeanalysisisusedwiththeexperimentdata.Thispapergivesanoptimizedprocessaddingpolyphosphate.Theresultsofthisexperimentindicatethat,weightaftersoaking,dropwaterweightafterthawingandboilingareaffectedbysolutionconcentration,soakingtime,temperature,andtherateoffishtosolution,etc….Thesoakingtimehasthegreatesteffectonweightaftersoaking,anddropwaterweightafterboiling.Thecapacityofwater-retainingismostaffectedbysolutionconcentration.Theoptimumpolyphosphatesadditiontechniquedeterminedbythisexperimentisasbelow:sodiumtri-polyphosphateconcentrationis3%,soakingtimeis5minutes,solutiontemperatureis0℃,andtheratioofsolutiontofilletis1:0.5.Keywords:aquaticproducts;water-retainingagent;polyphosphates;addtechnique目录第一章文献综述................................................................
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