肉用多功能可食性膜的制备、性能与应用-.研究

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1、青岛农业大学硕士学位论文摘要Studyonpreparation，performanceandpplicafionofmultofunction⋯lefilmandaDphcatlonmunotionedibleandlmcoatinginporkqualitycontrolAbstractInthispaper,ediblefilmwasmadeofsodiumalginateandglycer01．TensileStrength，Elongation，WaterVaporPermeabilitywasusedastheindextoassessthemostoptimumconditi

2、onofsodiumalginateediblefilm．Filmpropertiesweremodifiedbyltrasonicandmicrowaveinordertoobtainbetterones．TeaPolyphenolsWasaddedintOsodiumalginateediblesolutionasanaturalantimicrobialagenttoprepareantimicrobialalginate-basedediblefilm．Antimicrobial，Activitytransparency,TensileStrength，Elongation，and

3、WaterVaporPermeabilityWasusedastheindexthemostoptimumadditionofTeapolyphenolswasobtained．Onthisbasis，themostoptimumediblesolutionWasappliedtoavoidwaterlosswithdifferentcoolingmethodsoneatingqualityofporkandensurechilledporkkeepfreshduringstorage，andthismethodachievedsatisfactoryresults．Theresultsw

4、eresummarizedasfollows：SodiumaiginateediblepackingfilmWasobtained．Theresultshowedthatwhenalginatesodiumconcentrationwas3％(w／v)，glycerol1％(w／v)，dryingat55。Cfor6h，thefilmhadthebestproperties．Effectsofultrasonicwaveandmicrowavetreatmentonthepropertiesofsodiumalginateediblefilmwerestudied．Theresultedi

5、ndicatedthatbothultrasonicwaveandmicrowavetreatmentcouldimprovepropertiesofsodilumalginatefilm．Theediblesolutionwastreatedbyultrasonicwave，whenthepowerWas300w,timeWas10min，thefilmgotbetterproperties，；thefilmtreatedbymicrowave，undertheconditionof15s，powerWasmediumheat,thefilmgotbetterproperties．Com

6、paredthefilmsmadebyultrasonicwaveandmicrowaveundertheoptimumfilm-makingcondition，theresultshowedthattheeffectofultrasonicwavewasbetterthanmicrowave．Thefilmgotbetterpropertieswithuntransicwavetreatment．TeapolyphenolsWasaddedintoediblesolutionbyultrasonicwavetreatmenttoobtainantimicrobialsodiumalgin

7、atefilm．ThefinalresultshowedthatthemostoptimumadditionofTeapolyphenolsWas0．3％．TheediblepackagingfilmWasusedin雠Shmeatpacking，waterresistenceWasusedastheindex,andtheresultwasbadIl青岛农业大学硕士学位论文摘要Bystudyingthenormalco