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Bioplastics Life Cycle: Potential to Enhance Positive Environmental Impacts in the Circular Economy
Summary
This review of existing research finds that "bioplastics" aren't automatically better for the environment or your health—their benefits depend heavily on what they're made from, how they're disposed of, and whether proper recycling or composting systems actually exist where you live. That matters because mislabeled or improperly processed bioplastics can still break down into microplastics, so switching to a product labeled "bio-based" or "compostable" doesn't guarantee it avoids the same pollution and health concerns as regular plastic.
Objective: This article aims to evaluate the life cycle of products composed of bioplastics, analyzing their potential to reduce environmental impacts and their technical, economic, and regulatory limitations within the circular economy. Method: The study is exploratory and qualitative, based on bibliographic and documentary research. Scientific literature and institutional documents on circular economy, life cycle assessment, bioplastics, microplastics, waste management, and environmental regulation were analyzed through thematic categorization. Results: The results indicate that bioplastics can contribute to reducing dependence on fossil resources, mitigating greenhouse gas emissions, and diversifying end-of-life routes, such as mechanical recycling, industrial composting, chemical recycling, anaerobic digestion, and energy recovery. However, these benefits depend on the type of raw material, production route, polymer characteristics, collection and treatment infrastructure, adequate labeling, consumer behavior, and supportive public policies. Originality/Relevance: The article contributes to the debate on bioplastics by emphasizing that their environmental performance cannot be assumed generically, but must be assessed through a life cycle and circular economy perspective. Theoretical/methodological contributions: The study systematizes the main opportunities and limitations of bioplastics, connecting material classification, end-of-life alternatives, microplastic risks, and regulatory challenges. Social/management contributions: The findings support decision-making by companies, policymakers, and waste management actors seeking more sustainable material strategies.