The Knowledge Zone collects everything on this site about bioplastics, from raw material origins through to disposal. The guides are written for people who need to make decisions with this information: students and researchers, packaging designers, sustainability and procurement staff.
What is in the Knowledge Zone
Global bioplastics production capacity reached roughly 2.47 million tonnes in 2025 and is projected to keep growing at double-digit rates through 2030. The terminology, though, remains a mess, and the environmental claims attached to it even more so. These pages set out what the words mean and what the evidence supports.
Each section links to a full guide on one part of the subject. They are written to be read in any order.
The basics
Most disagreements about bioplastics turn out to be disagreements about vocabulary. The word “bioplastics” is misused often enough that it drives both greenwashing and honest confusion, so the foundational pages start there.
What are bioplastics?
Bioplastics are plastics that are bio-based, biodegradable, or both. A plastic made from plants does not necessarily biodegrade, and a biodegradable plastic is not necessarily made from plants. Our complete guide to what bioplastics are works through the definitions, the classification system and the misconceptions that follow from mixing the two properties up.
The four-quadrant classification
European Bioplastics and the academic literature classify materials on two independent axes: feedstock origin, bio-based or fossil-based, and end-of-life behavior, biodegradable or not. That gives four groups.
| Biodegradable | Non-Biodegradable | |
|---|---|---|
| Bio-based | PLA, PHA, starch blends | Bio-PE, bio-PET, bio-PA |
| Fossil-based | PBAT, PCL, PBS | Conventional PE, PP, PET |
Each quadrant has its own section below.
The materials
The material guides cover chemistry, production, mechanical and thermal properties, processing compatibility and how each polymer performs outside the laboratory.
Bio-based polymers
Bio-based polymers come wholly or partly from renewable resources such as corn starch, sugarcane or cellulose. The category holds both biodegradable materials like PLA and PHA and durable drop-in replacements like bio-PE and bio-PET. The bio-based polymers guide covers production routes, property comparisons and what is commercially available.
Biodegradable bioplastics
Biodegradable bioplastics break down into water, carbon dioxide and biomass under specific conditions. How fast and how completely depends on the polymer and on where it ends up: industrial compost, garden compost, soil or seawater. The biodegradable bioplastics section covers performance data, certification requirements and what these materials do in practice rather than in the test protocol.
Non-biodegradable bioplastics
Not every bioplastic is meant to biodegrade. Non-biodegradable bioplastics such as bio-PE and bio-PET are chemically identical to their fossil counterparts but made from renewable feedstock, which lowers the production footprint while keeping them compatible with existing recycling. See the non-biodegradable bioplastics guide.
Fossil-based biodegradable polymers
Fossil-based biodegradable polymers like PBAT and PCL come from petrochemical feedstock and are engineered to biodegrade in composting conditions. They get overlooked, though they do essential work as blend components and in agriculture. The fossil-based biodegradable polymers page explains where they are used and why.
Non-biodegradable fossil-based polymers
The site also covers conventional fossil-based polymers, since they are the baseline every bioplastic comparison is measured against. Any judgement about PLA or PHA depends on knowing what PE, PP and PET actually do.
Source and end of life
A material’s environmental and economic profile is set across the whole chain, from sourcing through manufacturing and use to disposal. Two sections cover the ends of that chain.
Feedstock
Every bioplastic starts with a feedstock, the biological raw material converted into polymer building blocks. Corn and sugarcane still dominate, while agricultural waste, forestry residues and algae are gaining ground commercially. The feedstock guide assesses each source on availability, land use, carbon footprint and scalability.
End-of-life options
What happens after use decides most of a bioplastic’s real environmental value, and it is the phase people get wrong most often. Industrial composting, home composting, anaerobic digestion, mechanical recycling, chemical recycling and landfill all produce different outcomes for the same material. The end-of-life options section covers which routes work, with the infrastructure data and standards behind them.
Industry context
Material properties only become useful decisions inside a commercial and regulatory context, which the next three guides supply.
Applications
Bioplastics have moved well past packaging into automotive components, textiles, electronics, agriculture, medical devices and 3D printing. The applications guide surveys commercial deployments by sector and explains which materials hold up in which use cases.
Market and trends
Regulation, brand commitments, feedstock economics and technology all move this market at once. The market and trends analysis tracks production capacity, investment, regional policy and the material platforms most likely to matter through 2030.
Standards and certifications
Claims about biodegradability and bio-based content mean nothing without verification. EN 13432, ASTM D6400 and ISO 17088, along with certifications such as TÜV Austria’s OK compost and OK biobased, provide the framework. The standards and certifications guide explains what each one measures, how the testing works and which certificates matter in which market.
Where to start
Different readers need different entry points.
| Your Role | Suggested Starting Point | Key Sections |
|---|---|---|
| Student or researcher | What Are Bioplastics? | Classification, bio-based polymers, feedstock |
| Packaging designer | Applications | Material properties, end-of-life, certifications |
| Sustainability manager | End-of-Life Options | Standards, market trends, feedstock |
| Policy maker | Standards and Certifications | Market data, biodegradable vs. non-biodegradable |
| Investor or analyst | Market and Trends | Feedstock, production data, applications |
Keeping this current
New polymer chemistries reach commercial scale, regulations change and composting infrastructure expands, so these pages are reviewed and updated against peer-reviewed research, industry data from European Bioplastics and the nova-Institute, and regulatory developments in the major markets.
If something here is out of date or wrong, tell us through the contact page. The about page explains who publishes this and why.