Mature green papaya cv ‘Sekaki’ of colour index 2 (green with
trace of yellow) were obtained from a local fruit wholesaler at Pasar
Borong Selangor, Malaysia on the same day of harvesting. The fruit
of uniform size (800–1200 g) shape and maturity and free from
any indication of mechanical injury, insect or pathogenic infection
were selected for the experiment. Fruit were washed with clean
distilled water and air-dried at ambient temperature (25–28 ◦C)
before exposure to ozone.