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Natural colorant incorporated biopolymers-based pH-sensing films for indicating the food product quality and safety
(Elsevier Sci Ltd, 2024) Parlak, Mahmud Ekrem; Sahin, Oya Irmak; Dundar, Ayse Neslihan; Saricaoglu, Furkan Turker; Smaoui, Slim; Goksen, Gulden; Koirala, Pankaj
The current synthetic plastic-based packaging creates environmental hazards that impact climate change. Hence, the topic of the current research in food packaging is biodegradable packaging and its development. In addition, new smart packaging solutions are being developed to monitor the quality of packaged foods, with dual functions as food preservation and quality indicators. In the creation of intelligent and active food packaging, many natural colorants have been employed effectively as pH indicators and active substances, respectively. This review provides an overview of biodegradable polymers and natural colorants that are being extensively studied for pH-indicating packaging. A comprehensive discussion has been provided on the current status of the development of intelligent packaging systems for food, different incorporation techniques, and technical challenges in the development of such green packaging. Finally, the food industry and environmental protection might be revolutionized by pH-sensing biodegradable packaging enabling real-time detection of food product quality and safety.