不同1-MCP处理对哈密瓜采后贮藏品质的影响

Effects of Different 1-MCP Treatments on Postharvest Storage Quality of Hami Melon

以西州密25号哈密瓜为试材，采用三种不同类型（国产粉剂、国产片剂、进口细颗粒剂）和不同浓度的1-MCP熏蒸处理15～18h，研究对低温（6～8℃）贮藏条件下21d哈密瓜果实的抗性生理及贮藏品质的影响。结果表明，在整个贮藏期内，以经过B1（进口1包／箱）、A2（国产片剂2片／箱）、C3（国产粉剂70mg／m3）处理的果实硬度下降值较低；SSC有明显的升高；失重率较小；能提高SOD和CAT活性：有效保持西州密25号哈密瓜的贮藏品质。其中进口1-MCP保鲜剂的保鲜效果略优于国产的1-MCP产品．

The study used Xizhoumi NO.25 Hami melon as material to study the effects of 1-MCP fumigation treatment with three different types（domestic powder, domestic tablets and imported tiny granules ） and different concentrations for 15-18 h on the resistance of related enzyme and the storage quality of the fruit during low temperature（6-8 ℃） storage for 21 days. The results showed that, during the whole storage period （21 d）, with the treatment B1 （imported 1 bag per box）, the treatment A2（domestic 2 tablets per box） and the treatment C3（domestic powder 70 mg/m3）, the decrease value of fruit hardness was low, SSC increased obviously, weight loss rate was small, the antioxidant capacity activity of SOD and biological defense system activity of CAT were improved, and the storage quality was effectively maintained. However, the P reservation effect of imported 1-MCP was better than domestic 1-MCP.