[1]胡花丽,梁丽松,王贵禧*,等.外源乙烯对CA贮藏桃果实MDA含量、PPO和LOX活性变化的影响[J].西北林学院学报,2007,22(03):38-42.
 HU Huali,LIANG Lisong,WANG Guixi*,et al.Effect of Exogenous Ethylene on MDA Content, PPO and LOX Activities of Peach Fruit during CA Storage[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2007,22(03):38-42.
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外源乙烯对CA贮藏桃果实MDA含量、PPO和LOX活性变化的影响()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第22卷
期数:
2007年03期
页码:
38-42
栏目:
森林生物学
出版日期:
2007-06-30

文章信息/Info

Title:
Effect of Exogenous Ethylene on MDA Content, PPO and LOX Activities of Peach Fruit during CA Storage
作者:
胡花丽1梁丽松2王贵禧2*李艳菊3
1.西北农林科技大学 林学院 , 陕西 杨陵 712100;2.中国林业科学研究院 林业研究所 国家林业局林木培育实验室,北京 100091;3.北京理工大学 生命科学与技术学院 ,北京 100081
Author(s):
HU Huali1LIANG Lisong2WANG Guixi2* LI Yanju3
1.College of Forestry, Northwest A & F University, Yangling ,Shaanxi 712100,China; 2.Research Institute of Forestry,China Academy of Forestry, Key Laboratory of Forestry Silviculture of State Forestry Administration, Beijing 100091,China; 3.College of Lif
关键词:
桃果实外源乙烯CA贮藏MDAPPOLOX
Keywords:
peach fruit exogenous ethylene controlled atmosphere storage shelflife MDA PPO LOX
分类号:
S718.43
文献标志码:
A
摘要:
以‘八月脆’桃果实为材料,研究了常温条件下,不同浓度外源乙烯(10~20 μL·L-1和50~80 μL·L-1)处理对气调贮藏(9%~11% CO2+9%~11% O2)期间以及在20℃回温3 d后桃果实MDA(丙二醛)含量、PPO(多酚氧化酶)和LOX(脂氧合酶)活性的影响。结果表明常温贮藏条件下,桃果实MDA含量随着果实的成熟而升高,PPO和LOX活性在第4 d出现高峰。外源乙烯提高了气调贮藏果实MDA含量,贮藏60 d时,高浓度外源乙烯处理果实MDA含量明显升高。回温后,冷藏对照果实MDA含量随着贮藏时间的延长而增加,且在贮藏60 d时,MDA含量高于常温贮藏果实的MDA含量。外源乙烯对LOX的作用与其对MDA的作用一致。高浓度的外源乙烯可抑制贮藏前期桃果实PPO活性,低浓度外源乙烯则降低了贮藏后期桃果实PPO活性,但回温后,低浓度外源乙烯处理果实PPO活性明显升高。综合考虑不同处理对CA贮藏桃果实MDA含量、PPO、LOX活性的作用特点,认为50~80 μL·L-1外源乙烯处理对减轻桃果实的低温冷害、抑制果实褐变有一定的作用。
Abstract:
Influence of ambient temperature, exogenous ethylene of different concentrations(10~20 μL·L-1,50~80 μL·L-1)on MDA content, PPO and LOX activities of 'Bayuecui' peach fruit(Prunus persica) during CA storage (9%~11% CO2+9%~11% O2) and then 3 days shelflife at 20℃ was studied.The results showed that the content of peach fruit increased with the days of storage at ambient temperature, the peaks of PPO and LOX activities were at 4 days of stoeage. The MDA content of peach fruit during CA storage increased when treated with exogenous ethylene. A higher MDA content appeared at the 60 days of storage when treated with 50-80 μl·L-1 exogenous ethylene. The MDA content of peach fruit in cold storage increased gradually with the time of storage, and its MDA content at the 60 days of storage was higher than that at the ambient temperature. The effects of exogenous ethylene on LOX and MDA were similar. The treatment of exogenous ethylene with 50~80 uL·L-1 concentration could suppress the PPO activity in the early storage period,while exogenous ethylene with 10~20 μL·L-1 concentration could reduce the PPO activity in the late period, however, the PPO activity with 10~20 μL·L-1 concentration appeared rise obviously after peach fruit was ripen at 20℃ for 3 days. Considering the comprehensive effects of different ethylene concentrations on MDA content, PPO and LOX activities of peach fruit during CA storage and shelflife, treatment with 50~80 μL·L-1 exogenous ethylene was more effective in alleviating the cooling injury and controling the browning of peach fruit in low temperature storage.

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备注/Memo

备注/Memo:
收稿日期:20060614修回日期:20061225基金项目:北京市自然科学基金项目(6062027);北京市农业科技项目(20020101);“十一五”国家科技支持计划重点项目(2006BAD22B04)作者简介:胡花丽(1980),女,陕西渭南人,硕士研究生,主要从事经济林产品利用研究。*通讯作者:王贵禧(1962),男,研究员,博士生导师。
更新日期/Last Update: 2010-05-04