Smart Anthocyanin-Fortified Packaging: A Sustainable Approach to Protect Food From Ultraviolet-B Induced Damage

The demand for sustainable and functional packing solutions is increasing due to growing interest in natural bioactive compounds, such as anthocyanins for food protection, to increase food protection. Anthocyanins are plant-derived pigments with strong antioxidant and UV-absorbing properties, making them promising candidates for active packaging applications. UV-B radiation is the principal agent in food spoilage, and during storage, it leads to the degradation of nutrients, color changes, and health risks. Conventional synthetic additives and petroleum-based packaging materials often lack biodegradability and may release harmful substances while also offering limited protection against UV radiation. In contrast, anthocyanin-integrated bio-based packaging not only blocks UV-B exposure but also imparts antioxidant benefits that extend the shelf life of perishable foods. Recent approaches include the use of anthocyanins in bio-based polymers combined with matrices such as chitosan, polylactic acid (PLA), and starch-based films to produce alternative packaging materials with new functions. Anthocyanin-fortified packaging is a sustainable and multi-purpose solution for various applications for which UV-B-induced food degradation raises concerns. This review highlights the current advancements, functional properties, and potential applications of anthocyanin-based films in food packaging, emphasizing their role in improving food quality and promoting environmental sustainability.