Waste-derived biopolymers as sustainable alternatives to conventional petroleum-based plastics: a multi-criteria review of feedstocks, performance and circularity

Innovations in Biodegradable Materials for Consumer Products

The growing volume of plastic waste and its long-term environmental impact have intensified global interest in biodegradable materials for consumer products. Conventional petroleum-based plastics, while durable, contribute to persistent pollution, microplastic formation, and ecosystem damage. In response, biodegradable materials offer a sustainable alternative, as they can decompose naturally under controlled conditions while maintaining acceptable mechanical and functional properties. This review examines recent innovations in biodegradable materials, including bio-polymers, natural fiber-reinforced composites, starch-based plastics, polylactic acid (PLA), polyhydroxyalkanoates (PHAs), and bio-nanocomposites. It explores their design principles, synthesis methods, processing technologies, and degradation mechanisms. The study highlights key advancements, performance trade-offs, and application challenges identified in existing literature. A methodological framework is proposed to evaluate these materials based on mechanical strength, biodegradability, lifecycle impact, and economic feasibility. The analysis identifies critical challenges such as high cost, limited scalability, and consumer acceptance. The paper concludes by emphasizing future research directions, including material hybridization, nano-engineering, and the integration of circular economy principles to accelerate the adoption of biodegradable materials in mainstream consumer products.

Engineering Sustainable Bioplastics From Marine Polysaccharides: Extraction, Characterization, Performance Metrics, and Life Cycle Assessment

The production and utilization of petroleum‐based plastics cause severe environmental degradation and climate alteration. These conventional plastics release greenhouse gases and hazardous chemicals during production, and their resistance to degradation—persisting undamaged for over 60 years—fuels critical marine pollution. To mitigate these issues, research is shifting toward biobased plastics as sustainable, biocompatible, and biodegradable alternatives. Derived from renewable biomass or microbes, these materials include starches, cellulose, casein, and diverse polysaccharides sourced from red ( Rhodophyta ), green ( Chlorophyta ), and brown ( Phaeophyta ) algae. Aligning with the principles of a circular bioeconomy, this approach maximizes resource efficiency and minimizes waste. Furthermore, innovative materials like Bio‐PET, polybutylene succinate (PBS), polylactic acid (PLA), and polyhydroxyalkanoates (PHAs) are increasingly deployed to replace traditional plastics. Beyond offering excellent preservation against oxidation and microbial decomposition in food packaging, these bioplastics show immense promise in medicine, nutraceuticals, and pharmaceuticals. This review article evaluates the diverse natural sources of bioplastics, analyzes their mechanical, thermal, and physical properties, and highlights their most promising future applications.

Bioplastics: A Sustainable Innovation for a Greener Future

Plastic pollution has become a global environmental crisis, threatening ecosystems, biodiversity, and human health. The extensive use of petroleum-based plastics, particularly single-use plastics, has resulted in the accumulation of persistent plastic waste in terrestrial and aquatic environments, contributing significantly to microplastic pollution and ecological degradation. Bioplastics have gained considerable attention as sustainable alternatives because they are derived wholly or partially from renewable resources and may exhibit biodegradable properties depending on their composition. Feedstocks such as corn starch, sugarcane, cellulose, algae, and microbial biomass offer environmentally friendly alternatives to fossil-based raw materials while supporting the transition toward a circular bioeconomy. This review provides a comprehensive overview of bioplastics, including their classification, raw materials, production techniques, industrial applications, environmental and economic benefits, current limitations, and recent technological advancements, highlighting their role in reducing plastic pollution and advancing sustainable materials science. With growing global interest in eco-friendly alternatives, bioplastics are expected to play a crucial role in reducing plastic waste, promoting green manufacturing, and shaping sustainable consumer behaviour. Continued research, technological innovation, supportive government policies, and improvements in waste management infrastructure will be essential to enhance the performance, affordability, and large-scale adoption of bioplastics in the future.

Biopolymer-based food packaging: performance, environmental impact, and pathways toward a sustainable future

There has been increasing interest in exploring alternatives to conventional plastic food packaging to address associated environmental concerns. Among these alternatives, biopolymers derived from natural sources such as starch, cellulose, polylactic acid (PLA), polyhydroxyalkanoates (PHAs), and proteins have gained significant attention. This review highlights the applications and performance of these biopolymer-based materials, particularly in terms of their mechanical strength, moisture resistance, and gas barrier properties. However, most commercially available biopolymers still lag conventional synthetic plastics in terms of functionality and overall performance. Their high-water absorption, poor gas barrier properties, and elevated production costs limit their large-scale application in food packaging. Previous studies have demonstrated that biopolymers are generally more environmentally friendly, with lower greenhouse gas emissions compared to petrochemical-based plastics, although they may involve higher agricultural and energy demands during production. Furthermore, this review discusses sustainable packaging strategies and end-of-life management approaches, including composting, recycling, and anaerobic digestion, to support the transition toward a circular economy and sustainable future. Overall, biopolymer-based packages can be environmentally friendly if sustainable sources, efficient manufacturing processes, and proper disposal are used. The main barriers to the widespread use of biopolymers include their inadequate barrier performance, high costs, and lack of adequate recycling and composting facilities.

Upcycling mixed household organic waste into starch-based bioplastics: influence of mineral additives on mechanical and degradation performance

Industrial Scaling and Commercialization of Biopolymer-Based Food Packaging: Processing, Performance, Regulatory and Sustainability Challenges

Bio-based origin, biodegradability, and compostability represent distinct concepts, and promising laboratory results do not always translate biopolymer-based food packaging into industrial implementation. This review adopts a value-chain perspective to critically assess the transition of biopolymer-based food packaging from renewable feedstocks to commercial products and end-of-life management. It evaluates key stages of the entire value chain, including polymer production, processing technologies, economic feasibility, regulatory requirements, environmental performance, and waste-management strategies. Major barriers to commercialization include feedstock and material variability, production and purification costs, processing limitations, performance gaps, certification challenges, and insufficient recycling or composting infrastructure. Evidence from techno-economic and life cycle assessments indicate that successful implementation depends on integrated production systems, process optimization, co-product valorization, and realistic end-of-life scenarios. Advancing biopolymer packaging therefore requires coordinated development across the entire value chain rather than isolated improvements in polymer design.