Abstract:
BACKGROUND: Postharvest application of fungicide prochloraz and hot-water dip are commercially practiced to control
postharvest diseases in mangoes. Owing to the increasing consumer demand for organically produced fruit, the search for
natural environmentally friendly alternative products and processes has become important for the fruit industry. This study
evaluated the combined effect of 1-methylcyclopropene (1-MCP) (500 nL L−1) and controlled atmosphere storage conditions
(CA-1, 5% O2 + 5% CO2 or CA-2, 3% O2 + 8% CO2) on the maintenance of fruit quality and bioactive compounds on hot-water
treated mangoes (cv. Kent) during postharvest storage.
RESULTS: In comparison to the1-MCP+CA-1 treatment,1-MCP+CA-2 reduced the incidence of anthracnose, weightandfirmness
loss; delayed the skin and flesh colour development; prevented the increase of soluble solids concentration/titratable acidity
ratio, ethanol and acetaldehyde content; and maintained the ascorbic acid, carotenoid, total phenolic and flavonoid contents,
and antioxidant scavenging activity in hot-water treated mangoes. The untrained panel preferred 1-MCP+CA-2 treated fruit to
the fruit subjected to other postharvest treatments adopted in this investigation.
CONCLUSION: Our investigation suggests that the combined effect of 1-MCP and CA-2 storage can be recommended as an
alternative treatment to replace prochloraz application for hot-water treated mangoes and can be adopted commercially for
organic exportmarkets.
