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冬雪蜜桃在气调冷藏期间品质及相关酶活性的变化
引用本文:田世平,徐勇,姜爱丽,汪沂.冬雪蜜桃在气调冷藏期间品质及相关酶活性的变化[J].中国农业科学,2001,34(6):656-661.
作者姓名:田世平  徐勇  姜爱丽  汪沂
作者单位:中国科学院植物研究所.北京,100093
基金项目:国家科技部"九五"攻关项目(99-010-01-3)和中国科学院农业重大项目资助
摘    要: 本研究主要探讨晚熟冬雪蜜桃(Prunus persica L.Batsch)在1℃普通冷藏,自发性气调(MA)和气调(CA)贮藏条件下果实酶活性变化与褐变的反应,品质特性和贮藏性。试验结果表明,与普通冷藏和MA相比,CA贮藏的桃表现出较高的果实硬度和可滴定酸含量。在相同的贮藏时间果实多酚氧化酶(PPO)和过氧化物酶(POD)活性也显著较低(P=0.05)。气调贮藏能够更有效地抑制晚熟冬雪蜜桃果肉的褐变,对保持果皮颜色和品质有利,在5%O2+10%CO2气体条件下82d果肉不褐变。但是,CA贮藏的果实维生素C和可溶性固形物含量与其它处理的果实没有 明显差异。冬雪蜜桃在CA下贮藏92d果实的风味正常。

关 键 词:冬雪蜜桃  气调贮藏  PPO  POD  品质
文章编号:0578-1752(2001)06-0656-06
修稿时间:2000年6月27日

Changes in Enzymatic Activity and Quality Attributes of Dongxue Peaches in Response to Controlled Atmosphere Conditions
TIAN Shi-ping,XU Yong,JIANG Ai-li,WANG Yi.Changes in Enzymatic Activity and Quality Attributes of Dongxue Peaches in Response to Controlled Atmosphere Conditions[J].Scientia Agricultura Sinica,2001,34(6):656-661.
Authors:TIAN Shi-ping  XU Yong  JIANG Ai-li  WANG Yi
Abstract:Late-mature peaches(Prunus persica L. Batsch, cv Dongxuemi) were stored in air, modification atmosphere(MA) and controlled atmospheres(CA) at 1 C and samples removed at intervals. The fruit were then analysed for color, firmness, titratable acidity, vitamin C and total soluble solids(TSS) contents, polyphenol oxidase(PPO) and peroxidase(POD) activities as well as measuring flesh browning. CA-stored peaches showed lower PPO and POD activities when compared with MA or air-stored fruit. Fruits kept in 5 0002 100 0C02 for 82 days did not shown any flesh browning, and retained firmness and compositional quality. No differences in vitamin C content or TSS were detected through the imposition of the storage regimes. It was found that peaches could be stored for up 92 days in CA without unacceptable loss of consumer quality.
Keywords:Dongxue peaches  Controlled atmospheres  PPO  POD  Quality attributes
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