Materials and Methods
Pears (Pyrus communis ) cv. ‘Williams’ were used in this study and
had yellowish-green colour without brown patches, weird odors and
without defects from mechanical movement. Initially the fruits were
placed into a 6.0 L plastic container. Thereafter, 4.0 kg of pears were
fumigated with an ozone concentration of 100 ppm and flow rate of
4.6 L min-1 for 60 min. Ozone was generated by Dielectric Barrier
Discharge (DBD) using moisture-free oxygen. In the control
treatment, the fruits were fumigated with only oxygen.