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当前位置: 首页 > 文章 > 6-苄氨基嘌呤对采后空心菜品质及其活性氧代谢的影响 食品科学 2016,37 (4) 266-271
Position: Home > Articles > Effect of 6-Benzylaminopurine Treatment on Postharvest Quality and Reactive Oxygen Species Metabolism of Ipomoea aquatica FOOD SCIENCE 2016,37 (4) 266-271

6-苄氨基嘌呤对采后空心菜品质及其活性氧代谢的影响

作  者：
芦航;高建晓;胡花丽;李鹏霞
单  位：
江苏省农业科学院农产品加工研究所
关键词：
空心菜;6-苄氨基嘌呤;品质;活性氧代谢
摘  要：
以大叶空心菜为材料,在(10±1)℃、相对湿度为90%~95%条件下进行货架模拟,以清水处理为对照,研究了30 mg/L 6-苄氨基嘌呤(6-benzylaminopurine,6-BA)处理对采后空心菜品质及活性氧代谢的影响。结果表明:30 mg/L 6-BA处理维持了采后空心菜较高的叶绿素含量,提高了超氧化物歧化酶的活性,降低了贮藏4 d和8 d时抗坏血酸过氧化物酶的活性,但其对空心菜过氧化物酶的活性无显著影响;同时,6-BA处理显著推迟了采后空心菜内源性抗氧化物质含量的下降,如还原型抗坏血酸和还原型谷胱甘肽含量的下降;此外,6-BA处理还减缓了空心菜组织中O_2~-·生成速率及H_2O_2、丙二醛含量的增加。这些结果表明30 mg/L 6-BA处理可延缓采后空心菜的衰老,从而维持其品质。
译  名：
Effect of 6-Benzylaminopurine Treatment on Postharvest Quality and Reactive Oxygen Species Metabolism of Ipomoea aquatica
作  者：
LU Hang;GAO Jianxiao;HU Huali;LI Pengxia;Institute of Agro-product Processing,Jiangsu Academy of Agricultural Sciences;College of Food Science and Technology,Nanjing Agriculture University;
关键词：
Ipomoea aquatica;;6-benzylaminopurine;;quality;;active oxygen metabolism
摘  要：
Large-leafed Ipomoea aquatica was pretreated with 0(as the control) and 30 mg/L 6-benzylaminopurine(6-BA),and then stored at(10 ± 1) ℃ with 90%–95% relative humidity. Changes in the reactive oxygen species(ROS) metabolism and quality of Ipomoea aquatica were assessed. The results showed that treatment with 30 mg/L 6-BA maintained higher content of chlorophyll,increased the activity of superoxide dismutase,and decreased the activity of ascorbate peroxidase in Ipomoea aquatica after 4 and 8 days of storage. However,no difference in peroxidase activity was observed between 6-BA treatment and the control. Meanwhile,6-BA treatment significantly delayed the decrease in endogenous antioxidants of posthtarvest Ipomoea aquatica. For example,the decline in the contents of ascorbic acid and glutathione was slowed down. Moreover,compared to the control sample,the increase in the production of superoxide anion radicals,and the contents of hydrogen peroxide and malonaldehyde in 6-BA-treated samples were mitigated. These results suggested that 6-BA treatment could alleviate the senescence of postharvest Ipomoea aquatica,thereby maintaining its quality.

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