The CO2 production rates in coated and uncoated sapota were measured according to the method described by using a gas analyzer (Checkmate 9900 PBI Dan sensor, Ringsted, Denmark). Individual samples were placed in a 1 litre hermetically sealed plastic
container. After 1 h, 0.8 mm green needle of the Headspace Analyzer was injected into the plastic container and the atmosphere inside the container was determined. The O2-CO2 rate of the air was recorded as an external standard for calibration. Three replicates were performed for each of the coated as well as uncoated samples. The respiration rate was expressed in ml CO2 kg-1 h-1.