Effects of Low Temperature Controlled Atmosphere Combined with Ethylene Absorbent and Ozone Treatment on the Storage Quality of Okra

The effects of low temperature controlled atmosphere combined with ethylene absorbent and ozone treatment on the storage quality of okra were studied. The okra from Yongning was used as the raw materials,and was treated as follows:controlled atmosphere combined with 1-methylcyclo-propene treatment(CA+1-MCP treatment group),controlled atmosphere combined with ethylene absorbent and ozone treatment(CA+EA+O₃ treatment group),and controlled atmosphere storage at low temperature as the blank control group(CK group). The effects of different fresh-keeping treatments on the weight loss rate,commodity rate,hardness,chlorophyll content,soluble sugar content,total phenols content,V_C content,soluble protein content,cellulose content in okra during storage were determined. The results showed that:compared with CK,CA+1-MCP and CA+EA+O₃ showed function on fresh-keeping of okra and postponed its post-harvest senescence. CA+1-MCP and CA+EA+O₃could significantly improve the commodity rate,reduce the cellulose content,and effectively sustain the hardness,chlorophyll,soluble sugar,total phenols,V_C,and soluble protein content(P<0.05). Compared with CK and CA+1-MCP,CA+EA+O₃could significantly reduce the weight loss rate,improve the commodity rate,and effectively sustain the hardness,chlorophyll and V_C content(P<0.05). Therefore,low temperature controlled atmosphere combined with ethylene absorbentand and ozone treatment had good fresh-keeping effects on okra.