PJB-2019-806
Controlling of green mold disease using chitosan and its effect on oranges properties during cold storage
Hadeel, M.M.K Bagy
Abstract
The present study aimed to investigate the potential application of chitosan for controlling green mold disease of orange fruits caused by Penicillium digitatum in vitro and in vivo during storage conditions. Effect of different concentrations of chitosan (0.01, 0.025, 0.05, 0.125, 0.25, 0.5, 1 and 2% v/v) was tested against P. digitatum in vitro. The best concentrations showed the highest inhibitory effect against pathogen were at (0.25, 0.5, 1 and 2% v/v). In vivo experiments, treatment orange fruits with chitosan conc at (0.25, 0.5, 1 % v/v) were significantly reduced disease incidence of fruits compared with untreated fruits (control). Effect of chitosan conc. at (0.25, 0.5 and 1% v/v) on some physical and chemical characteristics at 5°C was studied during two successive seasons 2017 and 2018. The results indicated that chitosan significantly decreased fruits decay percentage, fruits weight loss % compared with control.
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