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明胶-酪蛋白酸钠可食性膜的包装性能研究.docx

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明胶-酪蛋白酸钠可食性膜的包装性能研究 Title:StudyonthePackagingPerformanceofEdibleFilmwithGelatinandSodiumCaseinate Abstract: Ediblefilmshavegainedsignificantattentionasanenvironmentallyfriendlyalternativetonon-biodegradablepackagingmaterials.Inthisstudy,wefocusedoninvestigatingthepackagingperformanceofediblefilmsmadefromgelatinandsodiumcaseinate.Theaimwastoevaluatetheirpotentialassustainablepackagingmaterials,ensuringtheirfunctionalityandsuitabilityforvariousfoodproducts.Thisresearchprovidesvaluableinsightsintothedevelopmentofediblefilmswithimprovedpackagingproperties. Introduction: Packagingplaysacrucialroleinthepreservation,transportation,andpresentationoffoodproducts.However,conventionalpackagingmaterialssuchasplasticfilmshaveraisedseriousconcernsduetotheirnon-biodegradabilityandnegativeimpactontheenvironment.Ediblefilms,composedoffood-gradematerials,offeragreenalternativethatcanaddresstheseconcerns.Gelatinandsodiumcaseinatearewidelyutilizedinthefoodindustryandexhibitpromisingpropertiesforthedevelopmentofediblefilms.Therefore,thisstudyaimedtoexplorethepackagingperformanceofediblefilmsderivedfromgelatinandsodiumcaseinate. MaterialsandMethods: 1.Preparationofediblefilms:Gelatinandsodiumcaseinateweredissolvedseparatelyindistilledwater,followedbyblendingthesolutionstofabricatehomogeneousmixtures.Theresultingblendwasthenpouredonaflatsurfaceanddrieduntilitformedasolidfilm. 2.Filmcharacterization:Thethickness,tensilestrength,elongation,watervaportransmissionrate(WVTR),andoxygentransmissionrate(OTR)oftheediblefilmsweremeasuredtoevaluatetheirpackagingperformance.Scanningelectronmicroscopy(SEM)wasemployedtoexaminethesurfacetopographyofthefilms. ResultsandDiscussion: Theediblefilmsweresuccessfullyfabricatedusingacombinationofgelatinandsodiumcaseinate.Theadditionofsodiumcaseinateimprovedthemechanicalstrengthofthefilmscomparedtoindividualgelatinfilms.SEMimagesrevealedahomogeneousstructurewithasmoothsurface,indicatingthepotentialforeffectivepackaging. Thethicknessofthefilmswasmeasured,anditwas