Advanced Packaging Systems for Controlling Spoilage of Foods: A Comprehensive Review

Abstract

Food spoilage remains one of the most significant challenges facing global food security, resulting in enormous economic losses and nutritional waste. Perishable commodities including vegetables, fruits, and milk and milk products are particularly susceptible to spoilage due to rapid deterioration driven by physicochemical, microbiological, and environmental factors. Conventional packaging approaches employing plastics, glass, and paper in forms such as shrink wrapping, stretch wrapping, flow wrapping, overwrapping, blister wrapping, and vacuum packaging have served the industry for decades but are increasingly inadequate for extending shelf life without compromising product quality. Advanced packaging technologies offer transformative solutions by actively interacting with the food product and its immediate environment. This review critically examines three major advanced packaging strategies: (1) edible coatings, which create semi-permeable barriers directly on food surfaces to control gas exchange and moisture loss, (2) modified atmosphere packaging (MAP), which manipulates the headspace gas composition to retard microbial growth and oxidative reactions; and(3) nanotechnology-based packaging, which incorporates nanomaterials to impart antimicrobial, barrier, and sensing properties. The review further highlights the application of these technologies to vegetables, with special emphasis on why preservation is urgently needed and how advanced methods are superior to conventional ones - from farm gate to the end of the consumer supply chain. The paper concludes with future directions and the potential for integration of these technologies for a sustainable food system.

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