In conclusion, the present study shows that chitosan, as a preservative material, could delay the ripening process by inhibiting the respiration rate in the Eksotika II papaya fruit. This suggests
that chitosan not only maintains firmness but also improves the postharvest quality during cold storage and also suggests that chitosan is promising as an edible coating to be used in commercial postharvest applications for prolonging the storage life of the Eksotika II papaya.