“銀帝”甜瓜揮發(fā)性物質的分析及BTH或Harpin對其釋放的影響.pdf

1、甘肅農業(yè)大學碩士學位論文“銀帝”甜瓜揮發(fā)性物質的分析及BTH或Harpin對其釋放的影響姓名：李軒申請學位級別：碩士專業(yè)：農產品加工及貯藏工程指導教師：畢陽20050620Quan“tativeAnalyseofVolatileCompoundsinMuskmelons(cvYindi)andEffectofBTHorHarpinTreatmentonFlavorVolatilesPostgraduate：LiXuaaSuperviso

2、r：ProfBiYangSummaryMuskmelonisoneoftheimportantcropswiththegoodeconomicalbenefitinGansuprovinceHowever，decayeasilyoccurreddudngpostharvestApplicationofBTHorHarpincouldeffectivelyinduceresistantdiseaseanddecreasetherotoff

3、ruitTheobjectivesofthisstudyweretofirstlyanalysethevolatilecompoundsofmuskmelons(cvYindi)withSPMEandGC—MS，andfindtheirreleasepattemandcharacterimpactcompounds(CIC)duringstorageatambienttemperature；secondlyinvestigatewhet

4、herelicitortreatmenteffectonthereleaseofvolatilecompoundsofthemelonstreatedwith100mg／LofBTHor50mg／LofHarpinattheharvestday1dayor1weekbeforeharvestTheresultsshowedasbelow：1Theesterswereobviouslyincreasedasthestoragetimepr

5、olonged，especiallyforacetate，bothkindsandamountincreasedOnthecontrarythereleaseofaldehydewasreduced，suchas(E，z)2，6Nonadienaldecreasedobviouslygradually2Thecharacterimpactcompoundsofthemuskmelons(cvYindi)wereidentifiedase

6、thylacetate，butylacetate，isobutylacetate，2methylbutylacetatehexylacetate，methylacetate，phenylmethylacetate，ethylbutyrate，methyl(methylthio)acetate，trmls6Nonenal，(E，Z)2，6Nonadienal，eis4Nonenal，andethan01Esterswereinthemaj

7、oritytheamountofthemaccountedfor6498％ofthetotalvolatilecompounds3BTHorHarpinsuppressedsignificantlythereleaseofvolatilecompoundsoffruitduringthestorageatambienttemperature，After12claysofstorage，thetotalvolatilecompoundso

8、ffruittreatedwithBTHattheharvestday1dayand1weekbeforeharvestwereaccountedfor745％、779％and777％ofthecontr01SimilarlyasforHarpintreatmentsaccountedfor76|4％、801％and793％respectively4BTHdecreasedsignificantlytheamountofsomechar