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Advancements in Chitosan–Anthocyanin Composite Films: Sustainable Food Preservation with Biodegradable Packaging
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This review covers recent progress in developing biodegradable food packaging made from chitosan (derived from shellfish) combined with anthocyanins (plant pigments), which can preserve food freshness while avoiding the microplastic contamination associated with traditional plastic packaging. These films have antibacterial and antioxidant properties and can even change color to indicate food spoilage, offering a promising alternative to single-use plastics.
To mitigate the escalating environmental pollution caused by plastic packaging films and the associated health risks of the migration of microplastics into food, the development of biodegradable food packaging materials has been recognized as an urgent research priority. In this review, recent advancements in chitosan-anthocyanin composite films (C-As) over the past decade are systematically summarized. First, the key antibacterial and antioxidant mechanisms of chitosan and anthocyanins that contribute to their functional properties are elucidated. Next, the influence of anthocyanin incorporation on the physicochemical characteristics of C-As, including mechanical strength, barrier properties, and thermal stability, is examined. Furthermore, the controlled release behavior of anthocyanins within these C-As and their implications for prolonged bioactivity are explored. Finally, the practical applications of these films in preserving fresh food, such as fruits, vegetables, and meat, are discussed. This review provides a comprehensive framework for designing and optimizing chitosan-anthocyanin-based packaging materials, offering valuable insights for developing sustainable, high-performance food preservation strategies with significant industrial and environmental implications.
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A review of advancements in chitosan-essential oil composite films: Better and sustainable food preservation with biodegradable packaging
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This review covers how films made from chitosan (a natural material from shellfish) combined with essential oils are being developed as biodegradable food packaging to replace conventional plastics. By reducing reliance on plastic packaging, these alternatives could help decrease the amount of microplastics that migrate into food and are ultimately consumed by people.
An Antibacterial and Antioxidant Food Packaging Film Based on Amphiphilic Polypeptides‐Resveratrol‐Chitosan
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Researchers developed a biodegradable food packaging film made from natural materials including chitosan and resveratrol that kills bacteria and prevents food spoilage. Unlike conventional plastic packaging that breaks down into microplastics, this film is made entirely from biological materials and poses no microplastic contamination risk. This type of eco-friendly alternative could help reduce the microplastics that enter the food supply through traditional plastic packaging.
Synergistic effects of anthocyanins and essential oils in biopolymer based active and intelligent food packaging for sustainable applications
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Scientists are developing smart food packaging made from plant-based materials instead of plastic, combining natural pigments (from fruits and veggies) with essential oils to keep food fresher longer while also changing color to warn you if food has spoiled. This review paper summarizes existing research showing these plant-based films fight bacteria and spoilage better when the two ingredients are combined, offering a promising eco-friendly alternative to plastic packaging that could reduce both food waste and plastic pollution.
Chitosan with Natural Additives as a Potential Food Packaging
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Researchers reviewed the potential of chitosan, a natural polymer derived from chitin, as a sustainable alternative to conventional plastic food packaging. Chitosan-based materials combined with natural additives show promising antimicrobial and biocompatible properties while being biodegradable. The study suggests these materials could help reduce plastic packaging waste and the associated microplastic pollution from food industry sources.
Chitosan as a sustainable alternative for fresh food packaging: Structural insights, modification strategies, and innovations for commercial viability
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Researchers reviewed how chitosan — a natural biopolymer derived from crustacean shells — can serve as a biodegradable alternative to single-use plastic food packaging, detailing chemical modification strategies, nanocomposite reinforcement approaches, and recent advances in antimicrobial and antioxidant performance that improve its commercial viability.
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