Abstract:This study investigated the new biodegradable preservation packaging and technology for chicory.Specifically，with expanded polystyrene（EPS）box as control，poly（butyleneadipate-co-terephthalate）/polylactic acid（PBAT/PLA）film and 1-methylcyclopropene（1-MCP）were used to preserve chicory.The respiratory intensity，color difference，total phenols content，polyphenol oxidase activity，and nutrient content of chicory during the storage[（4.0±0.5）℃]were determined and analyzed.The results showed that the firmness of chicory wrapped with PBAT/PLA remained at 1.98 kg/cm2 after 24 days of storage，and the average sensory score was 3.425，1.15 higher than that of the control group.PBAT/PLA+1-MCP treatment delayed the peaking of respiratory intensity，reduced the peak by 10.72 mg CO2/（kg·h），and decreased browning index by 2.3-5.7 compared with the treatment without 1-MCP，which effectively restrained the loss of nutrients.The combination of PBAT/PLA film and 1-MCP can effectively improve the quality of chicory during cold storage. It can help expand the application of biodegradable packaging materials in agricultural preservation and improving chicory preservation technology.