Three replicates of five fruit each were held in gas-tight jars at 5◦C for 2 h prior to gas sampling. CO2 was measured with an infrared gas analyzer (GXH-305, Beijing, China), and results of respiration rate were expressed as mg kg−1h−1. Ethylene production was monitored in a Shimadzu 14-A gas chromatograph with flame ionization detector, and the results were expressed as l kg−1h−1