Novel biopolymer-based sustainable composites for food packaging applications: A narrative review

Food is an important material for survival. The increasing world population, urbanization, and globalization are responsible for more food. This has increased challenges in food storage and safety. Therefore, it is necessary to preserve food by suitable packaging materials. The packaging materials are useful for giving longer life to the food and improving quality during transportation, storage and distribution. Innovations and developments in food packaging, have become very important in the food industry. Variety of packaging materials such as plastics, paper, metal, and glass are used in food packaging. Most widely used packaging materials are non-biodegradable plastics but these are harmful to environment and human health. Therefore, the food industry is in search of environment friendly replacement of non-biodegradable plastics by biodegradable plastics. However, no systematic literature is available on the subject, so there is a need to summarise the available information in a systematic way. Polymer packaging materials with special reference to biodegradable plastics have been discussed in detail. Different type of biodegradable plastics with their functionality and applications in food packaging have been summarised. Literature available has shown that biodegradable plastics are much better for food packaging as compared to other packaging materials. Increasing fundamental research in the use of biodegradable polymers in food packaging and effort to protect the environment, requires deep understanding and there are lot of challenges for commercialization, which are to be tackled. All these aspects have been discussed in this review article. 

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Food Packaging Materials with Special Reference to Biopolymers-Properties and Applications

Biopolymer-based UV protection functional films for food packaging

Development and characterization of fish myofibrillar protein/chitosan/rosemary extract composite edible films and the improvement of lipid oxidation stability during the grass carp fillets storage.

A nanomaterial-stabilized starch-beeswax Pickering emulsion coating to extend produce shelf-life

Environmental pollution problems caused by plastic-based packaging promote alternative sustainable solutions to be imminent. Chitosan and gelatin are attracting great attentions in food packaging applications and representing interesting biomaterials for developing edible packaging film due to their excellent inherent properties including degradability, edibility, film-forming property and compatible nature. With the development of technology and economy, food-grade chitosan and food-grade gelatin are emerging and produced under legislation or standards proposed by the government or organization. These chitosan and gelatin could form uniform film-forming solutions and fabricate edible films by strategies including casting, electrospinning and thermoplastic method. The emerging chitosan-gelatin composite films with excellent physical properties including mechanical property, surface hydrophobic property, color property, barrier property and thermal property have achieved great developments. This article comprehensively reviews recent advances in legislation of raw materials, fabrication strategies and physical properties of chitosan-gelatin based edible films.

Edible films from chitosan-gelatin: Physical properties and food packaging application

Recent advances in gelatine and chitosan complex material for practical food preservation application

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Edible films from chitosan-gelatin: Physical properties and food packaging application

Recent advances in gelatine and chitosan complex material for practical food preservation application