Abstract
Chitosan is the second-most abundant polysaccharide in nature after cellulose. It presents unique inherent antibacterial and ultraviolet absorbance properties, biodegradability, non-toxicity, environmentally friendly qualities, and film-forming properties. Due to these unique properties, researchers have gained tremendous interest in replacing food packaging with non-petroleum-based packaging materials in the last decade. This chapter presents recent developments on the production techniques of chitosan from various natural sources, its physical and chemical modifications, strategies for chitosan-composites film production, as well as antibacterial and barrier properties of chitosan-based composites film reinforced with organic and inorganic nanofillers or a blend of chitosan with other bio-based polymers for food packaging applications.
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