不同有效氯浓度电生功能水冷激对香蕉耐冷性的影响

Effect of cold shock treatment of different ACC(Available chlorine concentration) electrolyzed functional water on chilling tolerance in bananas

为了探讨不同有效氯浓度电生功能水冷激处理对香蕉耐冷性的影响,以"巴西"香蕉为试材,分别使用(0±2)℃、ORP(1150±10)m V、有效氯浓度8%,(0±2)℃、ORP(1160±10)m V、有效氯浓度12%和(0±2)℃、ORP(1170±10)m V、有效氯浓度15%的3种功能水冷激处理0.5 h(以蒸馏水冷激处理为对照),贮藏在(4±1)℃、湿度85%条件下,研究不同有效氯浓度功能水冷激对香蕉耐冷性的影响。结果表明:与对照组相比,有效氯浓度为8%的电生功能水冷激处理后的香蕉在冷害温度下,冷害发生指数显著降低,硬度变化显著减缓,自由基清除酶SOD、POD、CAT活性显著提高,同时减缓了香蕉相对电导率及丙二醛含量的上升。试验结果表明:有效氯浓度为8%的电生功能水冷激处理对香蕉耐冷性有一定诱导作用,进而延缓低温下香蕉冷害的发生。

In order to evaluate the effect of cold shock treatment of different ACC（Available chlorine concentration） electrolyzed functional water on chilling jury of bananas.The ＂Brazil＂ bananas were individually cold-shocking treated by（0±2） ℃,ORP（1150±10） mV,ACC 8% ;（0±2） ℃,ORP（1160±10） mV,ACC 12% and（0±2） ℃,ORP（1170±10） mV,ACC 15% functional water（comparing its effect with cold shock treatment of distillation） for 0.5 h and storaged in（4±1） ℃ and 85% humidity.Then the effect of cold shock treatment of different ACC electrolyzed water on bananas was researched.The results showed that compare with the bananas treatment by distillation,the chilling injury indexes of bananas treated by ACC8% electrolyzed functional water reduced;hardness changes significantly slowed;the upward trend of relative conductivity and MDA content was slowed down;the activity of SOD,POD and CAT was relatively high.The experimental results showed that cold shock treatment of 8% ACC electrolyzed functional water improved the cold resistance and delay the happening of chilling jury of bananas at low temperature.