加速的货架期测试设计

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1、Topic8DESIGNOFACCELERATEDSHELFLIFETESTSTopic8ShelflifedesignandsensorytestingPage#2A.AcceleratedShelfLifeTestingPrinciplesA.Whatisshelflife?1.Definitiona.Timewhenproductisunacceptableb.Basedon%ofconsumersyouarewillingdissatisfy(1).consumervarieswithtime(2).notallcomplainonecomplaintper60i

2、ncidents(3).threetriesandyouareoutforuptotwoyears(4).distributionconditionsvarysodifferentresponse2.functionofenvironmenttemperatureandhumiditymainvariableseg.forshelfstableanddryworldis73°Fand50%RHdependsonfilmpermeanceTopic8ShelflifedesignandsensorytestingPage#33.relationshiptostatedope

3、ndate(1)pack(2)sell-by(3)use-by(4)best-if-used-by(5)minimum-durability(6)freezeby(7)combinations4.RelationshiptoHACCPIngredientsProcessDistributionTopic8ShelflifedesignandsensorytestingPage#4B.Howtoestimateshelflife1.literaturevalues2.distributionturnovertimefunctionforcurrentproducts1.ma

4、rketingdata2.homeusequestions3.complaintfilebyregion3.distributionabuseArmourtest4.AcceleratedShelfLifeTesting"ASLT"1.whentotestnewproducts2.isitapplicabletofinalproduct3.whatconditionsdoyouusetemperatureandorhumiditypackagingmaterialinteraction4.whatisthemagicnumberTopic8Shelflifedesigna

5、ndsensorytestingPage#5C.GeneralASLTprinciples1.Kineticsofdeterioration-generalratefactordA=fCE{},xxdtA=measureddeteriorationfactort=time±dA/dt=rate(amountofchangeperunittime)+forgain-forlossCx=compositionfactorsamountmechanismcatalystspHwatercontentandawEx=Environmentalfactorswhichvarytem

6、peraturerelativehumiditylightoxygencarbondioxide-CAP/MAPethylene-CAP/MAPmechanicalvibrationvariationsTopic8ShelflifedesignandsensorytestingPage#62.Kineticsofdeterioration-principlesa.choseorder(1)statisticalfit(2)mechanisticfit3.Problemsa.whattestproceduredoyouuse(1)sensoryvschemistryorph

7、ysical(2).amountofchangeand#ofpoints(3)precisionoftest(4)lengthoftimevsmarketshipmentdatec.benchvspilotplantvsfullscaleproductionFEFS-failearlyfailsmalld.ingredientshavedecreasingshelflifee.costreductionschangeproductandorpackageduringdevelopmentandafterwardsTopic8S