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Bioplastics

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Bioplastics derived from microbial processes present a sustainable alternative to conventional petroleum-based plastics. Among these, polyhydroxyalkanoates (PHAs), particularly polyhydroxybutyrates (PHBs), have emerged as prominent candidates due to their biodegradability and biocompatibility. These polymers are synthesized by a variety of bacteria, such as Cupriavidus necator and Pseudomonas putida, which naturally accumulate PHAs as intracellular carbon and energy reserves, especially under...

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Updated: May 16, 2026

Scalable Step-by-Step Approach of Sustainable Bioplastic Production from Food Waste

Scalable Step-by-Step Approach of Sustainable Bioplastic Production from Food Waste

Published on: July 18, 2025

Bioplastics science from a policy vantage point.

Jim C Philp¹, Alexandre Bartsev, Rachael J Ritchie

¹Science and Technology Policy Division, Directorate of Science, Technology and Industry, OECD, Paris, France.

New Biotechnology

|December 11, 2012

Summary

Biodegradable plastics face slow uptake due to public controversy and greenwashing concerns. Bio-based plastics, derived from renewable resources, are gaining traction for greenhouse gas (GHG) emission reduction, shifting production trends.

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Area of Science:

Materials Science
Environmental Science
Policy Studies

Background:

Plastics offer unique flexibility but pose end-of-life disposal challenges, particularly in landfills.
The durability of plastics contributes to landfill burden due to slow microbial decomposition.
Biodegradable plastics, while a potential solution, have experienced slow market adoption and public controversy, including greenwashing accusations.

Purpose of the Study:

To analyze the scientific and policy landscape of biodegradable and bio-based plastics.
To address the slow uptake of biodegradable plastics and the controversies surrounding their environmental claims.
To explore the drivers and implications of the shift towards bio-based plastics, particularly concerning greenhouse gas (GHG) emission reduction.

Main Methods:

Review of scientific literature on plastic biodegradability and bio-based alternatives.
Analysis of public perception and market trends for bioplastics.
Examination of policy frameworks and their impact on bioplastics development and adoption.

Main Results:

The term 'biodegradable' is subject to misuse, leading to public distrust and calls for standardized testing.
Bio-based plastics, derived from renewable resources, are increasingly favored for their potential to reduce GHG emissions, even if not fully biodegradable.
A significant shift in production is occurring from truly biodegradable plastics to bio-based plastics.
Bioplastics often lack supportive policy regimes compared to biofuels.

Conclusions:

Standardized testing and clear labeling are crucial for biodegradable plastics to overcome public skepticism.
Policy interventions, similar to those for biofuels, are needed to foster the growth of the bioplastics sector.
The future of plastics likely involves a greater emphasis on bio-based materials, with end-of-life management focusing on energy recovery or recycling to meet climate goals.