高氧氣調(diào)包裝對鮮切果蔬品質(zhì)的影響—鮮切梨和土豆的研究.pdf

1、江南大學(xué)碩士學(xué)位論文高氧氣調(diào)包裝對鮮切果蔬品質(zhì)的影響—鮮切梨和土豆的研究姓名：梁小玲申請學(xué)位級別：碩士專業(yè)：包裝工程指導(dǎo)教師：盧立新20080701AbstractAbstractForthefreshnessandconvenience，舶shcutfruitsandvegetablesaregrowinginpopularityHowevertheflesh—cutfruitsandvegetablesorganizationisd

2、estructedbymanmadeprocessingthesensoryandnutritionalqualitydeteriorationwillbeshowedinthestorageNowthegeneraltechnologytokeepthequalityisModifiedAtmospherePackagingButthiswillleadtoanaerobicbreathinpackageInthispaperthef

3、leshcutpearsandpotatoeswereresesrchedinhighoxygencombinedwithdifferentpretreatmentTheresearchworkmainlyincludedasfollow：Theresearchoffresh—cutpears(1)Highoxygen(70％)canpreventedbrowningInthepackagesoffoodadditivecombined

4、withhighoxygen，whenthestartoxygenover76％，themore，theeffectbetterButinthepackagesofmildheatpretreatmentcombinedwithhighoxygen，thebesttoinhibitbrowningisthe8084％ofoxygenmorethanthosetheeffectbegantodecrease(2)Thelonely90％o

5、foxygenmaystimulatethehardnessoffreshcutpearstodepress(3)Thelonely90％ofoxygenshownagoodeffectonsolublesugarbutabadeffectontitratableacidity(4)Atthebeginofstorage，thelonely90％ofoxygennotonlyWasnoeffectiveoncontaintheconte

6、ntofVc，butalsoacceleratethelostSothelonely90％ofoxygenisnotsuittokeepthequalityoffresh—cutpears，butat25％ascorbicacid，l％calciumLactateand80％ofoxygen，or50“C，60minmildheatpretreatmentand92％ofoxygenwerefoundgoodatkeepthequali

7、tyoffresh—cutpearsTheresearchoffresh—cutpotatoes(1)Thelonely80％ofoxygenWasincreasedtheL木changeoffreshcutpotatoes(2)Thelonely80％ofoxygenandfoodadditivecombinedwithhighoxygenwerenoeffectiveinkeepingthea宰o(hù)ffresh—cutpotatoes

8、，themildheatpretreatmentcombinedwithllighoxygenCanpreventthechangeonlyatthelastofstorage(3)Thelonely80％ofoxygenstimulatethehardnessoffresh—cutpotatoestodepress(4)Thefoodadditivecombinedwithhi曲oxygenretainthefreshcutpotat

9、oeslostofweighbetterthantnelonely80％ofoxygenAndthecontentsofC02inthepackagesof90％oxygenlessthanthe70％oxygenInthepackagesofmildheatpretreatmentcombinedwithllighoxygen，Highoxygen(80％)canreducetherateofrespirationoffreshcut

10、potatoes，andtheeffectofcombinationbetterthanthelonelyhi曲oxygenSothelonely80％ofoxygenisnotsuittokeepthequalityofflesh—cutpotatoes，butat25％ascorbicacid，0785％calciumLactateand80％ofoxygen，or40℃，20minmildheatpretreatmentand92