CO2 is an antifungal compound. Its effect is dependent on concentration, exposure time and application time following
fruit harvest. According to our results, the CO2 generated inside the PLA packages was not enough to prevent A. alternata growth at 10 C. These results were expected since Harb and Streif (2004) reported that amounts higher than 6% CO2 were needed to retard B. cinerea growth in blueberries stored near 0 C.