西鄉(xiāng)櫻桃異地鮮銷關(guān)鍵技術(shù)研究.pdf_第1頁
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1、西北農(nóng)林科技大學(xué)碩士學(xué)位論文西鄉(xiāng)櫻桃異地鮮銷關(guān)鍵技術(shù)研究姓名:汪勇申請學(xué)位級別:碩士專業(yè):食品工程指導(dǎo)教師:劉興華20070901STUDYoNKEYTECHNoLoGYOFTHEREMOTEFRESHSALEoFXIXIANGCHERRYABSTRACTXixiangCountyofHanzhongShaanxiprovincehasbeenthesecondlargestproductionbaseofcherryinP&China

2、XixiangcherrywhichwasfamousforitSbeautifuIcolorandpleasantpalate,reachesanearlymaturityonabout2礦1,AprilHoweverthedifficultyofstorageandtransportationrestrictedthelotagdistancedistributionandsale,whichlostacostofmorethan4

3、0%everyyearBasedontheactualsituationofproductionandsaleofXixiangcherrythispaperproposeedallideaofremote舶shsaleillSwellasresolvingtheproblemofcorrelatedkeytechnologysuchaswaterpre—cooling,packageandpreservation111leideaof

4、remotefreshsaleofXixiangcherry:Afterthetreatmentoffastprecooling,preservativesandmodifiedatmospherepackagingintheproducingplace,thepickedcherryWastransportedtothesupermarketsinlargecitiespromptlyofthecountriesbycoldtrain

5、thenfollowedbysalesincoldstorageshowboxofsupermarkets2Thekeytechnicalparametersofthecherry’Swaterpre—cooling:thetemperaturedifferencebetweencoolingwaterandcherryshouldbelCSSthan18℃otherwisethecherrymaybecomedehiscentfrui

6、teasily;immersedthecherryinthecoolingwaterwith50mgL1stabilizedC102for5minutes,whichwouldinhibitthepathogensfromcrossinfection3PackagedwithPPbowlrefrigeratedundertheconditionof4℃1℃alterwaterpreeooling,withthebestattacheds

7、iliconerubberwindowareaof100ram25009“’,Xixiangcherrywouldhaveanoptimumediblepreservationperiodof6days4AsapreservativethestablestateC102couldsignificantlyinhibitthecontentdecliningofcherryTSS、TA、Vc、reducingsugaraswellasth

8、eriseoftheethanol,meanwhile,theaddingofCl02especiallyprovidedagoodeffectonthemouldyinhibitionofthecherryandthebestusageconditionistheconcentrationof50ragL1with5mnutesimmersionAfterthecherrysurfacebecomingdry,packagedinth

9、ePPbowlattachedwithlOOmm25009。1siliconerubberwindowandrefrigeratedundertheconditionof4℃士l℃thecherrywouldreachanoptimumediblepreservation餓病odoflO11days5Immersedthecherryincoolmgwatersolutionofthecompoundpreservativesandan

10、tistalingagentfor5minutes,afterthesurfacebecomingdrypackagedtheeberryinthePPbowlattachedwithlOOmm25009‘1siliconerubberwindowandrefrigeratedthemundertheconditionof4“C士1“C111egoodproportioningofthecoolingwaterscontentsforq

11、ualityindexWas08%potassiumsorbate2O%calciumchlorinationO1%citricacid02%VcandthegoodproportioningforsensoryindexWas02%potassiumsorbate3O%calciumchlorinationo5%citricacido2%Vcnleoptimumediblepreservationperiodofthecherrywo

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