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1、維普資訊http://www.cqvip.com果樹學(xué)報(bào)2008,25(4):537-541JournalofFruitScience溶茵酶對豐水梨果實(shí)貯藏保鮮效果的影響韓艷麗一,張紹鈴,吳俊,吳華清,肖家欣(南京農(nóng)業(yè)大學(xué)梨工程技術(shù)研究中心,南京210095;江蘇農(nóng)林職業(yè)技術(shù)學(xué)院,江蘇句容212400)摘要:以成熟的豐水梨果實(shí)為材料,研究了常溫條件下0.01%、0.05%N0.15%溶菌酶涂膜處理對豐水梨果實(shí)采后生理及保鮮效果的影響。結(jié)果表明,貯藏20d后,溶菌酶處理能顯著降低果實(shí)的失重率、爛果率和呼吸強(qiáng)度,平均比對照分別降低了35%、19.8%和12.2%;溶菌酶處理能有效維持豐水梨果實(shí)
2、的內(nèi)在品質(zhì),經(jīng)溶菌酶處理的豐水梨果實(shí)硬度、抗壞血酸(VC)含量平均比對照分別高出0.47kg/cIll和3.5mg/kg,可滴定酸和還原糖含量平均比對照分別高6.6%和9.8%:溶菌酶處理在一定程度上抑制了果實(shí)膜透性和丙二醛(MDA)含量的增加,顯著抑制了超氧化物歧化酶(SOD)和過氧化氫酶(CAT)~N性的降低,貯藏20d后,SOD、CAT活性平均比對照分別高57.1%、37.1%。在3種溶菌酶濃度中.以0.05%濃度溶菌酶涂膜處理效果最好。關(guān)鍵詞:豐水梨;溶菌酶;果實(shí)保鮮;品質(zhì)變化中圖分類號(hào):$661.2文獻(xiàn)標(biāo)識(shí)碼:A文章編號(hào):1009—9980(2008)04—537—05Effec
3、toflysozymecoatingtreatmentsonthestorabilityofHosuipearfruitHANYan—li一,ZHANGShao—ling,WUJun,WUHua-qing,XIAOJia—xinPeatEngineeringandTechnologyResearchCenter,NanjingAgriculturalUniversity,Nanjing,Jiangsu210095China;2JiangsuPolytech—nicCollegeofAgricultureandForestry,Jurong,Jiangsu212400China)Abstra
4、ct:Theeffectsof0.01%.0.05%and0.15%concentrationsoflysozymecoatingtreatmentsonthefruitstorabilityandeatingqualityofHosuipearcuhivarwerestudiedatthenormalstoredtemperature.Theresultsshowedtllatafterstoredfor20dlysozymecoatingtreatmentssignificantlyreducedtheratesoffruitweightloss,rottenfruitrateandf
5、ruitrespiration,aver—agelyreducedby35%.19.8%and12-2%comparedwiththecontro1.LysozymecoatingtreatmentseffectivelyretainedthefruitfirmnessandVCcontent.higherby0.47kg/cmand3.5mg/kg;thetitratableacidityandsugarcontentwerehigherthanthoseofthecontrolby6.6%and9.8%respectively.Lysozymecoatingtreatmentscoul
6、dinhibittheincreaseoffruitmemhranepermeabilityandMDAcontent.a(chǎn)ndremarkablyrestrainthedecreaseofSODandCATactivities.Afterstoredf0r20d.theSOD,CATactivityaveragelywerehigherthanthoseofcontrolby57.1%and37.1%.Furthermore.tlleeffectof0.05%con—centrationoflysozymecoatingwasthebestamongthe3treatments.Theef
7、ectsoflysozymecoatingtreatmentsonthefruitkeepingqualityofHosuipearcultivarwerediscussed.Keywords:Pear;Hosui;Lysozyme;Fruitstorability;Qualitydamage豐水梨是日本培育的中熟砂梨品種.自引入我acetylmuramideglycanohydralase),根據(jù)其作用的微國以來,至2