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Emerging Trends in Biomaterials for Sustainable Food Packaging: A Comprehensive Review
Summary
This review comprehensively examined biodegradable polymers including polylactic acid and polyhydroxyalkanoates, along with ceramics, composites, and nanomaterials, as sustainable alternatives to conventional plastic food packaging, reviewing their biodegradability, mechanical robustness, and barrier properties. The authors highlighted that biomaterials offer significant potential to reduce plastic pollution and carbon footprints, though challenges in processing costs, shelf-life stability, regulatory considerations, and trade-offs with food production feedstocks remain major hurdles for widespread adoption.
Biomaterials for sustainable food packaging are gaining significant attention as environmentally friendly alternatives to conventional plastic packaging. The increasing environmental concerns over conventional plastic food packaging have spurred significant research and development of biomaterial-based sustainable packaging alternatives. Biomaterials such as biodegradable polymers: including polylactic acid and polyhydroxy alkanoates along with ceramics, composites, and nanomaterials, demonstrate promising functionalities, including biodegradability, mechanical robustness, barrier properties, and antimicrobial activity. These materials arise from renewable sources and offer the potential to significantly reduce plastic pollution and carbon footprints associated with the food packaging industry. Recent advances in composite formulations and nanotechnology-enabled packaging have further enhanced their performance, making biomaterials viable contenders for diverse food packaging applications. However, technical challenges related to processing, cost, and shelf-life alongside safety and regulatory considerations remain major hurdles for widespread commercialization. Interdisciplinary research and industrial collaborations are crucial to overcoming these challenges, optimizing material properties, and ensuring consumer safety. Ultimately, biomaterials are poised to drive a paradigm shift towards sustainable, circular food packaging systems that align with global sustainability goals by reducing waste, conserving resources, and enhancing food preservation. The future of food packaging lies in biomaterials driving sustainable, circular systems aligned with global sustainability goals, with ongoing innovation, standardized testing, and supportive policies accelerating their global uptake. This review underscores the importance of continuous innovation, standardized evaluation methods, and supportive policies in accelerating the adoption of biomaterial-based food packaging solutions worldwide.