1-MCP处理对甜樱桃果实凹陷、贮藏品质及活性氧代谢的影响  

Effect of 1-MCP treatment on fruit pitting,storage quality and reactive oxygen species metabolism of sweet cherry fruit

作　　者：候杰 杨青珍[2,3] 王锋[2,3] 齐英舰 刘鹏 畅元生 HOU Jie;YANG Qingzhen;WANG Feng;QI Yingjian;LIU Peng;CHANG Yuansheng(College of Food Science and Engineering,Shanxi Agricultural University,Taigu 030801,China;Life Science Department,Yuncheng University,Yuncheng 044000,China;Characteristic Fruit Quality Control and Application Laboratory,Yuncheng University,Yuncheng 044000,China;Fruit Development Center in Linyi County of Yuncheng,Linyi 044100,China)

机构地区：[1]山西农业大学食品科学与工程学院,山西太谷030801 [2]运城学院生命科学系,山西运城044000 [3]运城学院特色果品品质调控与应用实验室,山西运城044000 [4]临猗县果业发展中心,山西临猗044100

出　　处：《食品与发酵工业》2024年第21期280-286,共7页Food and Fermentation Industries

基　　金：山西省科技厅自由探索面上项目(202303021211112);山西省高等学校科技创新计划创新平台项目(2022P012);山西省现代农业产业技术体系建设项目(SXFRY-2023);山西省研究生教育教学改革课题(2022YJJG271);甜樱桃保鲜技术研究(202312E0006);食品科学与工程重点学科项目(XK-2021012,XK-2021015)。

摘　　要：为探究1-甲基环丙烯(1-methylcyclopropene,1-MCP)处理对采后甜樱桃果实凹陷、贮藏品质和活性氧代谢的影响,该研究以“萨米脱”甜樱桃为材料,用1.0μL/L 1-MCP熏蒸处理甜樱桃果实12 h,于(0±0.5)℃下贮藏,定期取样进行相关指标的测定。结果表明,1-MCP处理有效降低甜樱桃果实凹陷率、凹陷指数和腐烂率,并显著抑制果实硬度、可溶性固形物和可滴定酸含量的下降,较好的维持了果实外观和口感。同时1-MCP处理保持较高的超氧化物歧化酶、过氧化氢酶、抗坏血酸过氧化物酶和谷胱甘肽还原酶活性,促进了抗坏血酸含量和谷胱甘肽含量的上升,提高了果实的DPPH自由基和ABTS阳离子自由基清除能力,显著降低超氧阴离子自由基和H_(2)O_(2)含量,抑制丙二醛积累和相对电导率上升。这些结果表明,1-MCP处理可能通过提高抗氧化酶活性,抑制活性氧累积,从而减轻细胞膜氧化损伤,保护细胞膜的完整性,进而抑制甜樱桃果实表面凹陷。该研究为1-MCP在甜樱桃冷链物流保鲜中的应用提供了理论依据。In order to investigate the effect of 1-MCP treatment on fruit pitting,storage quality and reactive oxygen species metabolism of sweet cherry after harvest,sweet cherry‘Samituo’was fumigated with 1.0μL/L 1-MCP for 12 h and stored at(0±0.5)℃.Regular sampling for the determination of relevant indicators.The results showed that 1-MCP treatment effectively reduced the pitting incidence,pitting index and decay incidence of sweet cherry,and significantly inhibited the decline of fruit firmness,soluble solid and titratable acid content and better maintained the appearance and taste of fruit.At the same time,1-MCP treatment maintained high activities of superoxide dismutase,catalase,ascorbate peroxidase and glutathione reductase,promoted the increase of ascorbate content and glutathione content,improved the free radical scavenging ability of DPPH free radical and ABTS cation free radical,significantly decreased the contents of·O_(2)-and H_(2)O_(2),and inhibited the accumulation of malondialdehyde and the increase of relative conductivity.These results suggest that 1-MCP treatment may reduce cell membrane oxidative damage,protect the integrity of cell membrane,and inhibit the surface pitting of sweet cherry by increasing the activity of antioxidant enzymes and inhibiting the accumulation of reactive oxygen species.This study provides a theoretical basis for the application of 1-MCP in cold chain logistics preservation of sweet cherry.

关 键 词：甜樱桃 凹陷 1-MCP 品质 活性氧代谢 

分 类 号：TS255.3[轻工技术与工程—农产品加工及贮藏工程]