Table 2 shows weight loss during storage of uncoated mangoes compared to coated fruit. All samples underwent a gradual loss of weight during storage. Loss of weight of uncoated fruit was significantly greater than that of coated fruit after 5 days. At the end of storage, untreated mangoes showed 2.8% loss in weight, whereas the weight losses of coated samples were around 1.5%. These results highlight a protective action of coating against moisture loss, which has also been reported by several authors (Ali et al., 2011 Vásconez et al., 2009). The reduction in water loss can be attributed to an additional barrier against diffusion through the stomata (Paull et al., 1989). As can be observed in Table 2, incorporation of LPOS with and without iodine into the film-forming solution did not have any significant effect on weight loss reduction. Thumula (2006) showed also that the presence of lysozyme in chitosan coatings did not influence the loss of weight of tomatoes.