硅窗气调包装延长茶树菇贮藏期的工艺及机理研究

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1、江南大学博士学位论文硅窗气调包装延长茶树菇贮藏期的工艺及机理研究姓名：李铁华申请学位级别：博士专业：食品科学指导教师：张慜20070601坚堕查兰竖主兰堡堡兰AbstractAgrocybechaxinguisanewlydevelopedvaluableediblemushroom．Itisrotteneasilyatambienttemperature．anddi伍culttostore．Sofarthestudyonthemushroomismainlyfocusollthecultivatetechnologyan

2、ditsfunctionalfactors．NotmuchresearchonthepreservationofAgrocybechaxinguhasbeenreported．Inthisstudy，MAPwithsilicongumfilmwindow(MAPW)wasusedtostoreAgrocybechaxingu,andtheeffectswereobviously,whichprolongedtheshelflifeofAgrocybechaxingutomorethan20days．Thechangesof

3、physiologicalcharacteristicsduringstoragewerediscussed，andtheeffectofthesechangestothestoragequalityofAgrocybechaxinguwasanalyzedinthispaper,whichprovidesatheoreticalbasisfortheselectionofstoragemethodanddeterminationofstorageconditions．Itwasfoundfromtheexperiment

4、sthatthelowestlimitof02concentrationforstoringAgrocybeehaxinguwas1．1‰andtheanaerobicrespirationwouldoccurifthe02concentrationwaslowerthantheminimumvalue,Amongthesestoragemethods，thequalityofAgrocybechaxingustoredbyMAPWwasatebest；withlongeststorageperiodandnochemic

5、alpollution．ItisagoodmethodforAgrocybeehaxingustorage．InordertoimprovethestorageeffectofMAPw'3factors(initialgascomposition，silicongumfilmwindowareaofpackagingmadstoragetemperature)whichstronglyaffectthephysiologicalcharacteristicsduringstoragew聃selectedasthestudy

6、objects．Theeffectsofthesefactorsonthegasonvimamentofthepackages．10ssrateofAscorbicacid,titratableacidity,changingofsolublesolids，increasingrateofcellmembranepermeabilityanddecreasingofsensoryqualityduringAgrocybechaxingustorageperiodwereexplored．Onthebasisoftheses

7、tudy,Ascorbicacidretentionandsensoryevaluation$cA)resweresetasresponsevalue．3-factorand3-levelofresponsesurfaceanalysiswasdesigned．ThebestparmnetersofMAPWforAgrocybechaxingustoringwereacquired：initialgascompositionswere5％02anA10％C02。siliconwindowareaofpackingwas0．

8、9cmzandthestoragetemperana'ewas3"C．TakingconventionalMAPascontrol,theeffectofMAPWstorageonthequalityofAgrocybechaxinguwasstudied．TheAgrocybeehaxingustor