We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
The Future of Sustainable Packaging: Exploring Biodegradable Solutions Through Extrusion, Thermo-Expansion, 3D Printing and Supercritical Fluid from Agro-Industry Waste
AI summary Read the abstract
Researchers reviewed biodegradable foam alternatives to expanded polystyrene (EPS) packaging, evaluating manufacturing methods including extrusion, thermo-expansion, 3D printing, and supercritical fluid processing of renewable polysaccharides derived from agro-industrial waste as more sustainable options.
Due to environmental disasters caused by the use of plastic packaging, particularly expanded polystyrene (EPS), there is an urgent need to identify sustainable alternatives. Biodegradable foams derived from renewable polysaccharides have emerged as highly promising candidates to replace EPS, given their comparable cushioning and barrier properties. However, despite the rapid growth of research in this area, there has not yet been a comprehensive review addressing biodegradable foams as a specific class of packaging materials, particularly regarding their processing routes, raw materials, and functionalization. This work discusses conventional techniques for producing biodegradable foams, such as thermoforming and extrusion, as well as innovative methods, including supercritical fluids and 3D printing. It also examines key renewable polysaccharides and the incorporation of agro-industrial residues into foam matrices, aiming to improve performance and reduce costs. Furthermore, the article highlights advances in composite and nanocomposite foams, with particular emphasis on active properties such as ethylene absorption and antimicrobial activity capable of extending food shelf life. By directing attention to biodegradable foams as substitutes for expanded polystyrene, this review provides a unique contribution, filling a critical gap in the field and offering a foundation for future studies aimed at developing scalable, low-cost, and eco-friendly alternatives to plastics.
More Papers Like This
Sustainable and biodegradable polymeric foams: Processing–structure–property relationships, scalability, and circular design perspectives
AI summary Read the abstract
This review paper takes stock of new plant-based and biodegradable foam materials, like those made from cellulose and plant sugars, that could replace traditional petroleum-based foams used in packaging and insulation. These greener alternatives break down more easily instead of persisting in the environment as plastic waste and microplastics, though the research shows some, like bio-based polyurethane foams, are still hard to recycle due to their chemistry. While scientists have made real progress, especially with super-insulating cellulose foams, the paper notes that cost, scalability, and further innovation (including AI-assisted design) are still needed before these materials show up widely
Starch‐Based Polymer Composites for Sustainable Food Packaging: Advances in Bioplastic Development
AI summary Read the abstract
This review examined production mechanisms, structural modifications, and industrial applications of starch-based bioplastics for food packaging, discussing the role of plasticizers and physical and chemical treatments that enhance hydrophobicity, mechanical strength, and thermal stability. While starch-based bioplastics offer biodegradability and renewable origins supporting a circular economy, the review concluded that trade-offs with food production feedstocks and higher manufacturing costs compared to conventional plastics mean they are not a complete long-term solution to plastic pollution.
Valorization of wood pulp to mechanically strong and biodegradable packaging foams by wet foaming process
AI summary Read the abstract
Researchers developed biodegradable packaging foams from wood pulp and lignin using a wet foaming process, optimizing surfactant concentration and foaming time to achieve densities as low as 0.013 g/cm3 and porosities up to 99.2% as sustainable alternatives to expanded polystyrene.
Emerging Trends in Biomaterials for Sustainable Food Packaging: A Comprehensive Review
AI summary Read the abstract
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.
Agricultural Waste-Derived Biopolymers for Sustainable Food Packaging: Challenges and Future Prospects
AI summary Read the abstract
This review examines how agricultural residues such as rice husks, corn cobs, and fruit peels can be converted into biodegradable polymers as sustainable alternatives to conventional plastic food packaging. Key biopolymers discussed include cellulose, starch, proteins, PHA, and PLA, with findings highlighting promising properties alongside ongoing challenges in cost, mechanical performance, and food safety compliance.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.