不同MAP包装内气体变化情况及其对山楂果实品质的影响-论文.pdf

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1、中国雇擘c童提2014，30(24)：283—288ChineseAgriculturalScienceBulletin不同MAP包装内气体变化情况及其对山楂果实品质的影响王亮，赵迎丽，闫根柱，陈嘉，王春生(山西省农业科学院农产品贮藏保鲜研究所，太原030031)摘要：为延长山楂果实的保鲜期，提高果实贮藏品质，筛选适宜山楂果实长期低温贮藏的塑料薄膜包装。本研究采用4种不同薄膜包装(MAr)，对‘大金星’山楂果实进行冷藏(04-0．5)℃试验，研究了不同MAP处理中O、CO和乙烯气体体积分数的变化趋势，以及山楂果实生理和贮藏品质的变化。结果表明：在4~(04-0．5)oc条件下，厚度为3

2、0岬的PVC薄膜包装有利于减缓山楂果肉硬度和可滴定酸含量的下降，但加速了贮藏后期果实中MDA含量和果肉褐变率的上升；而厚度为15gm的高渗出CO保鲜袋，对抑制果实硬度下降和减缓果实可滴定酸降解效果不显著，但对减缓MDA含量和果肉褐变率的上升有积极作用。4种不同薄膜包装(MAP)处理中，厚度为15Ixm的高渗出CO保鲜袋贮藏效果最佳，适宜山楂果实长期保鲜。关键词：山楂；自发气调包装；贮藏品质中图分类号：$661．5文献标志码：A论文编号：2014．0258ChangesofGasinDiferentMAPandEfectoftheChangesonQuaHtyofHawthornFrui

3、tWangHang，ZhaoYingli，YanGenzhu，ChenJia，WangChunsheng．(TheInstituteofAgriculturalProductStorageandFresh-keeping,ShanxiAcademyofAgriculturalSciences，Taiyuan030031)Abstract：Inordertoprolongfresh—keepingperiodofhawthornfruits，improvestoragequalityofthefruits，andscreenMAPfilmpackagesuitableforlong—pe

4、riodlow—temperaturestorageofhawthornfruits，thestudytook‘Dajinxing’hawthornasmaterialsandcarriedouttherefrigerationtestwithfourdiferentMAPfilmpackages(PEperforatedbagwith201~mthickness，PVCbagwith30mthickness，PVCbagwith5Omthickness，andfresh—keepingbagefectivelypenetratingC02with15p,mthickness)．Cha

5、ngingtendenciesofvolumefraction0f02，CO2，andethylene，changesoffruitphysiologyandstoragequali~ofhawthornindiferentMAPtreatmentswereresearchedduringrefrigeration(0~0．5℃)．Theresultsshowedthatundertheconditionof(0±0．5)℃，PVCbagwith30mthicknesswasbeneficialtolessenfruithardnessandtitratableacidcontent．

6、However，inthelateperiodofstorage，itpromotedriseofMDAcontentandbrowningrate．Comparatively，fresh—keepingbagefectivelypenetratifigCO2with15mthicknesshadinsignificantefectonrestrictionofhardnessdeclineandretardoftitratableaciddecomposition，butpossessedactiveefectonlesseningtheriseofMDAcontentandbrow

7、ningrate．AmongfourdiferentMAPfilmpackages，fresh—keepingbagefectivelypenetratingCO2with15mthicknesshadthebeststorageefectandwassuitableforlong—periodfresh—keepingofhawthornfruits．．．Keywolds：hawthorns；modifiedatmospherepackage