In summary, the chitosan coating solution incorporating an active shrimp protein-lipid concentrate increased the lag phase and inhibited the growth of microorganisms involved in shrimp spoilage. These results were reflected in the biochemical indices determined in shrimp muscle. The composite chitosan coating was imperceptible from a sensorial point of view and prevented black spot development. Then, this coating could therefore be useful for preserving shrimp quality during chilled storage with a shelf-life extension in shrimps of about 5 days.