Use of edible coatings and films incorporated with active components (such as antioxidants or antimicrobials) will result in prolonged activity of the active components on foods than direct application by dipping or spraying (Min et al., 2005)
Edible films can act as barriers to oxygen, water and limit lipid oxidation. Muscle foods can be wrapped in a preformed gelatin film, dipped or sprayed with gelatin film forming solution. On industrial scale, dipping muscle foods in gelatin solutions seems to be more practical. Significant improvements in oxidative stability of fish fillets dipped in chitosan-megrim skin gelatin solution (Caballero et al., 2005) and gelatinbenzoic acid solution (Ou et al., 2002) have been observed