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1、中國農(nóng)業(yè)科學(xué)2013,46(6):1230—1236ScientiaAgriculturaSinicadoi:10.3864/j.issn.0578-1752.2013.06.017不同包裝方法對藍莓采后貯藏品質(zhì)和抗氧化活性的影響陳杭君,王翠紅,郜海燕,毛金林,周擁軍(浙江省農(nóng)業(yè)科學(xué)院食品科學(xué)研究所,杭州310021,南京農(nóng)業(yè)大學(xué)食品科技學(xué)院,南京210095)摘要:【目的】研究低溫條件下,不同包裝方法對藍莓果實采后貯藏品質(zhì)和抗氧化活性的影響,探索適宜的貯藏包裝方式,為藍莓保鮮技術(shù)的發(fā)展與應(yīng)用提供理論指導(dǎo)?!痉椒ā恳浴疇N爛’藍莓品種為試材,在(5±0.5)℃貯藏條件下,分別采用不打孔聚乙烯
2、(PE)保鮮袋、打孔聚乙烯保鮮袋包裝和不包裝處理。通過分析營養(yǎng)品質(zhì)、抗氧化酶活性和抗氧化物質(zhì)含量等指標(biāo)的變化,探討包裝方式對藍莓采后貯藏品質(zhì)及抗氧化活性的影響。【結(jié)果】藍莓果實在低溫貯藏條件下,采用PE保鮮袋包裝能有效防止果實失水、延緩硬度和可溶性固形物(TS8)的變化,并能較好維持果實抗氧化性能,但對可滴定酸含量變化無顯著影響?!窘Y(jié)論】采用不同包裝方式對藍莓貯藏品質(zhì)存在明顯差異,其效果依次為:不打孔PB袋>打孔PE袋>無膜包裝。關(guān)鍵詞:藍莓;包裝;貯藏品質(zhì);抗氧化活性EfectofPackagingonthePostharvestQualityandtheAntioxidantActiv
3、ityofBlueberryCHENHang-jun,WANGCui—hong’。,GAOHai—yan,MAOJin.1in,ZHOUYong~un(InstituteofFoodScience,ZhejiangAcademyofAgriculturalSciences,Hangzhou310021;CollegeofFoodScienceandTechnology,NanjingAgriculturalUniversity,Nanjing210095)Abstract:[Objective]Thisresearchwasconductedtostudytheefectofpackagi
4、ngonthepostharvestqualityandtheantioxidantactivityofblueberry,andtoexploretheoptimalpackagingmethodsatlowtemperature.Furthertheoreticalguideforthedevelopmentandapplicationofstoragetechniqueofblueberry.[Method]‘Canlan’blueberryfruitswerestoredat(5:L0.5)ocusingunpacked,polyethylene(PE)filmpackaginga
5、ndperforatedPEfilmpackaging.Basedonsensoryevaluationandanalysesofantioxidantenzymeactivitiesandantioxidantcontents,theefectsofdiferentpackagingmethodsonthepostharvestqualityandtheantioxidantcapacityofblueberrywerestudied.[Result]Theresultsshowedthat,ascomparedtoothertwopackagings,thePEfilmpackagin
6、gwassignificantlybetterinpreventingdehydrationandatrophy,slowingdownthechangesofhardnessandthetotal-solublesolids(TSS),andmaintainingtheantioxidantcapacityofblueberryduringstorage.However,thePEfilmpackagingshowednosignificantefectontitratableacid(TA)content.[Conclusion]Diferentpackagingsexhibiteda
7、greatefectonthestoragequalityofblueberryfruit.Bytheendofthestorageperiod(42days),thefresh—keepingefectofthePEfilmpackagingmethodwasbeterthanthatoftheperforatedPEfilmpackagingornon-PE-packedmethod.Keywords:blueber