正己醇处理对桑葚采后生理与抗氧化酶的影响

为保持桑葚采后品质，延长桑葚的贮藏期，研究采后低温(0～2℃)条件正己醇处理对桑葚呼吸强度、VC、过氧化物酶(POD)、脂氧合酶(LOX)、超氧化物歧化酶(SOD)和过氧化氢酶(CAT)的影响。结果表明：正已醇可以降低桑葚的呼吸强度和LOX比活力；延缓桑葚VC的减少；保持POD和CAT比活力；对SOD比活力影响则前后不一，前4d降低了桑葚中SOD比活力，4d后则提高了桑葚中SOD比活力，但各处理与对照差异不显著。

Effect of 1-Hexanol Treatment on Physiology and Antioxidant Enzymes of Post-harvest Mulberry Fruits

In order to achieve an optimal method for maintaining post-harvest quality and extending storage period of mulberry fruits,the effect of 1-hexanol treatment on respiratory intensity,vitamin C,peroxidase(POD),lipoxygenase(LOX),superoxide dismutase(SOD) and catalase(CAT) in mulberry fruits stored at low temperature of 0-2 ℃ was explored.The results indicated that 1-hexanol could reduce respiratory intensity and LOX activity,delay the reduction of vitamin C,and maintain POD and CAT activities of mulberry fruits.However,the 1-hexanol treatment could result in the reduction of SOD activity during first 4 days and increase after 4 days.