食品科学 ›› 2009, Vol. 30 ›› Issue (6): 250-254.doi: 10.7506/spkx1002-6630-200906059

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外源一氧化氮熏蒸处理对芥兰采后品质及抗氧化酶系的影响

丹阳1.2,吴成勇2,林杰2,黄小芳2,陈斌2   

  1. 1. 福建农林大学作物学院 2. 福州超大现代农业发展有限公司
  • 收稿日期:2008-02-21 修回日期:2008-09-06 出版日期:2009-03-15 发布日期:2010-12-29
  • 通讯作者: 丹阳 E-mail:dany@chaoda.com;leaf_dy@sina.com
  • 基金资助:

    福建省重点科研项目基金资助项目(2006N0084)

Effects of Nitric Oxide Fumigation on Postharvest Quality and Antioxidant Enzymes of Brassica alboglabra Bailey

DAN Yang1,2,WU Cheng-yong2,LIN Jie2,HUANG Xiao-fang2,CHEN Bin2   

  1. (1. College of Crops, Fujian Agriculture and Forestry University, Fuzhou 350003, China;
    2. Fuzhou Chaoda Modern Agriculture Development Ltd., Fuzhou 350003, China)
  • Received:2008-02-21 Revised:2008-09-06 Online:2009-03-15 Published:2010-12-29
  • Contact: DAN Yang1,2 E-mail:dany@chaoda.com;leaf_dy@sina.com

摘要:

以绿叶蔬菜芥兰(Brassica alboglabra Bailey)为试材,在确定适宜熏蒸时间的基础上,观测了不同浓度NO(60、100μl/L)气体对芥兰采后失重、开花率、黄化率及抗氧化酶系的影响。结果表明:利用外源NO 处理芥兰的适宜处理时间是30min,芥兰的存在能够控制贮藏环境中NO 氧化产物NO2 的积累。外源NO 处理对芥兰采后失重率无显著影响,但是能够显著抑制芥兰采后开花及叶片黄化。外源NO 处理能够抑制芥兰采后SOD、CAT 活性的下降,并能控制芥兰组织中MDA 含量的上升。

关键词: 芥兰, 采后, 一氧化氮, 品质, 抗氧化酶

Abstract:

In order to determine the proper fumigation time of nitric oxide (NO), the change tendencies of NO concentration from 60 μl/L and 100μl/L were investigated in the presence of Brassica alboglabra Bailey. Furthermore, the effects of NO concentrations of 60 μl/L and 100 μl/L on postharvest weight loss, flowering ratio, yellowing ratio of leaves and anti-oxidation enzymes were also investigated. The results showed that the proper fumigation time of NO is 30 minutes. The presence of Brassica alboglabra Bailey can control the accumulation of NO2, which is the product of NO oxidation. The fumigation of NO could effectively inhibit the flowering ratio and the yellowing ratio of leaves of Brassica alboglabra Bailey, but has no effects on the postharvest weight loss. Moreover, the fumigation of NO could control the activity decreases of SOD and CAT and the increase of MDA content.

Key words: Brassica alboglabra Bailey, postharvest, nitric oxide, quality, anti-oxidant enzyme

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