The results of sensory test are shown in Fig. 1-A. Until 3 days, the
colour of banana peels only changed from green to yellow with minimal
browning (less than 3 points). The banana peel browning developed
quickly from 3 days of storage (Fig. 1-B). The CO and ET groups
showed higher scores than the Cont group for all storage periods. In
particular, the CO group showed a significantly higher score than the
ET group at 6 days of storage. These results indicate that CO2 and
ethylene gas promoted the ripening and browning of banana.