Ozone fumigation to delay ripening of mango 'Nam Dok Mai No. 4'.
Tran T. T. L., Aiamla-Or S., Srilaong V., Jitareerat P., Wongs-Aree C., Uthairatanakij A.
Author Affiliation: Division of Postharvest Technology, School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkok, Thailand.
: 103-106
Abstract : Ozone has been used as a postharvest treatment to delay the physiological and biochemical changes in fruit during storage. In this study, mango fruit (Mangifera indica L.) 'Nam Dok Mai No. 4' were fumigated with ozone at 2 µl L-1 for 20 min and 10 µl L-1 for 10 min before storage at ambient (25°C) and after three days of ambient storage. Ozone at 10 µl L-1 significantly decreased the respiration rate at day 4 and 6 compared with the control. It also decreased ethylene production which however increased on day 4 and 6, and resulted in lower peel L* and b* on day 4, lower pulp a*, higher hue angle and lower weight loss on day 6 than that of the other treatments. Fruit firmness, soluble solid content and titratable acidity were not significantly affected.