Fig. 1 shows different sensitivities of strains to different
coatings applied on the mangoes. The concentration of chitosan
in the coating solution and the presence of the enzyme system
affected the fungal decay of the fruit. The percentage of strain
inhibition was improved with the increase of chitosan concentration,
and it became higher when the LPOS system was added.
These studies reported that the antifungal effect
of chitosan was dependent on concentration (El Ghaouth et al.,
1992; Jiang and Li, 2001; Liu et al., 2007). Chitosan with its positive
charges interacts with negatively charged membranes of the cell to
alter cell permeability.