Enzymatic plastic recycling in 2026: overview
Enzymatic plastic recycling uses enzymes to break polymer chains into reusable building blocks or materials. Most activity focuses on PET: PET hydrolases such as PETase and cutinases break the polymer down, while MHETase can process intermediate products. This could complement mechanical recycling when plastic is hard to recycle or needs to return to higher-quality feedstock. The central challenge is making enzymes work efficiently on solid, variable waste while maintaining stability and controlling product buildup.
Recent work is tackling both enzyme discovery and process bottlenecks. A September 2026 study from Kobe University used fluorogenic probe-doped PET nanoparticles to investigate hydrolysis at the polymer interface, where enzyme action remains poorly understood. A separate July 2026 study from Beijing Forestry University and the Chinese Academy of Sciences used fluorescent nanoparticle biosensors with droplet sorting to screen PET hydrolases. Industrial scale-up remains uncertain: in June 2026, news reported that Carbios delayed commissioning of its planned China PET biorecycling plant to 2028.
- 1Engineer for access: Recent studies point to substrate accessibility and enzyme behavior at solid PET interfaces as persistent constraints on depolymerization.
- 2Build beyond free enzymes: Whole-cell systems and enzyme display are gaining attention as ways to combine polymer breakdown with downstream conversion of PET-derived products.
- 3Packaging leads applications: PET packaging is the largest listed application, and its recent activity growth signals a strong focus on bottle and packaging waste.
Top organizations working on enzymatic plastic recycling
Ranked by Linknovate activity score · last 24 monthsThe activity score adds up the relevance of every patent, publication, grant and news item linking an organization to enzymatic plastic recycling. Showing 7 of 356 organizations.
| # | Organization | Approach | Signals (24 mo) | Momentum | Why it matters |
|---|---|---|---|---|---|
| 1 | 
Tianjin University
Research · China |
Engineered enzymes | PUB 26 | +17% | Tianjin University researchers redesign PET hydrolases, including FAST-PETase and IsPETase variants, and computationally improve MHETase for dual-enzyme PET depolymerization. |
| 2 | 
Jiangnan University
Research · China |
Whole-cell biocatalysis | PUB 34 | -30% | Recently, Jiangnan University researchers reported engineering a thermophilic Bacillus for PET-waste degradation; related work screens and characterizes PET hydrolases and targets PETase localization on bacterial cells. |
| 3 | 
Beijing University of Chemical Technology
Research · China |
Engineered enzymes | PUB 22 | -62% | Recently, researchers reported enzyme-functionalized Janus particles to trap and degrade PET nanoplastics. Other work designs PET hydrolases using computational loop reconstruction and synthetic protein scaffolds. |
| 4 | NT
Nanjing TechUniversity
Research · China |
Whole-cell biocatalysis | PUB 25 | -8% | Researchers engineered Clostridium thermocellum for whole-cell PET depolymerization to monomers and have also studied PET hydrolase discovery and enzyme activity. |
| 5 | 
Chinese Academy of Sciences CAS
Research · China |
PET hydrolases | PUB 21 · NEWS 7 | +360% | Recently, CAS researchers isolated marine microorganisms for PET biodegradation. Their work also develops high-throughput droplet sorting with fluorescent nanoparticle biosensors to screen PET hydrolases. |
| 6 | 
University of Chinese Academy of Sciences
Research · China |
PET hydrolases | PUB 17 | +12% | Researchers affiliated with the university study PET-degrading microorganisms and enzyme discovery, including hydrolase screening and biomimetic catalysts for PET depolymerization under mild conditions. |
| 7 | 
Shandong University
Research · China |
Engineered enzymes | PAT 1 · PUB 17 | -20% | Shandong University researchers use graph learning and meta-learning to improve PET hydrolase activity at elevated temperatures, and have studied enzyme engineering for degradation of other polyesters. |
| 8 | ··Hidden organizationCompany | Approach | PAT 00 · PUB 00 GRANTS 0 · NEWS 00 | +00% | Available to registered users. |
| 9 | ··Hidden organizationCompany | Approach | PAT 00 · PUB 00 GRANTS 0 · NEWS 00 | +00% | Available to registered users. |
| 10 | ··Hidden organizationCompany | Approach | PAT 00 · PUB 00 GRANTS 0 · NEWS 00 | +00% | Available to registered users. |
Startups to watch and leading research centers
Startups to watch 4 total
NBD | Nostrum BiodiscoverySpainNostrum Biodiscovery contributes computational design and protein-engineering expertise to research reprogramming E. coli for PET nanoparticle biodegradation and upcycling.- ··Hidden startupCountryAvailable to registered users, with funding and founding year.
Leading research institutions 310 total
- Tianjin UniversityChinaTianjin University researchers redesign PET hydrolases, including FAST-PETase and IsPETase variants, and computationally improve MHETase for dual-enzyme PET depolymerization.
- Jiangnan UniversityChinaRecently, Jiangnan University researchers reported engineering a thermophilic Bacillus for PET-waste degradation; related work screens and characterizes PET hydrolases and targets PETase localization on bacterial cells.
- Beijing University of Chemical TechnologyChinaRecently, researchers reported enzyme-functionalized Janus particles to trap and degrade PET nanoplastics. Other work designs PET hydrolases using computational loop reconstruction and synthetic protein scaffolds.
- ··Hidden research institutionCountryAvailable to registered users, with their key researchers.
- ··Hidden research institutionCountryAvailable to registered users, with their key researchers.
Where enzymatic plastic recycling innovation happens
Share of documents with at least one organization from each country.
Open the interactive map with all 356 organizationsMain technical approaches
Last 24 months| Approach | What it is | Documents | Leading organizations |
|---|---|---|---|
| PET hydrolases | PET hydrolases directly depolymerize PET, but their performance depends on polymer accessibility and enzyme stability under processing conditions. | 724 |
Tianjin University, Jiangnan University, Beijing University of Chemical Technology |
| Engineered enzymes | Protein engineering and computational design tune enzyme activity or robustness, though gains in one property can compromise another. | 217 |
Engineering, Beijing University of Chemical Technology, Chinese Academy of Sciences CAS |
| Enzyme cocktails | Cocktails combine enzymes that act on PET and its intermediates, but require compatible activities and reaction conditions. | 11 |
Jiangnan University, Northeast Forestry University, Key Laboratory of Functional Inorganic Materials Chemistry |
| Whole-cell biocatalysis | Whole-cell systems produce or display enzymes and can transform breakdown products, but depend on effective substrate access and cellular metabolism. | 168 |
Tianjin University, Nara Institute of Science and Technology, University of Chinese Academy of Sciences |
| Immobilized enzyme processing | Immobilization can retain enzymes in a process for reuse, but supports and mass-transfer limits can reduce effective activity. | 91 |
Engineering, Chinese Academy of Sciences CAS, Jiangnan University |
Emerging trends
Last 12 months vs previous 36 monthsTerms whose frequency in the last 12 months grew the most compared with the previous 36 months.
Funding and investment
Recent funding rounds
FACTS records $25.6 million in grants across 15 grants since 2020. It also lists $642.7 million across 11 funding rounds; these round figures are separate from grant totals.
Patent landscape
Top patent holders · last 24 monthsRecent developments
Latest news, duplicates removed- Sep 2026"Pac-Man Enzyme" breaks down polyester plastic while simultaneously splitting penicillin Advertisement Huge amounts of plastic waste accumulate in the oceans in so-called“Great Garbage Patches”and spell disaster for the…chemeurope.com News
- Sep 2026A typical response to the previous article on why PLA filament is so darn brittle. This has led some people to not use PLA filament at all, while others promote using PLA only for prototyping and throw-away parts…Blog – Hackaday
- Aug 2026Plastic is everywhere. From the bottles we drink from to the packaging we use every day, it has become a part of modern life. But there is a major problem — plastic can remain in the environment for a very long time…Research on Medium
- Jul 2026Some bacteria can break down PET plastic — the material used in bottles and packaging. Others help produce biofuel. Some even make natural light (bioluminescence) that could be used for lighting without electricity.…Science on Medium
- Month 20XXHidden developmentAvailable to registered users with alerts enabled.
Frequently asked questions about enzymatic plastic recycling
What companies are working on enzymatic plastic recycling?
CARBIOS and Epoch Biodesign are named in enzymatic-recycling news, while research activity includes Tianjin University and Jiangnan University. In February 2026, Invista and Epoch Biodesign announced a memorandum of understanding on post-consumer nylon recycling. CARBIOS is developing PET biorecycling, and its planned China plant was reported delayed in June 2026.
Which universities and research centers lead enzymatic plastic recycling research?
Tianjin University, Jiangnan University and the Chinese Academy of Sciences are among the active research organizations. Tianjin University works on redesigned PET hydrolases and dual-enzyme depolymerization. Jiangnan University studies thermophilic bacteria and PETase localization, while the Chinese Academy of Sciences has worked on hydrolase screening and marine microorganisms.
How much funding has enzymatic plastic recycling received?
FACTS records $25,643,624 in grants across 15 grants since 2020, and $642,687,099 across 11 funding rounds. These are separate funding categories in the dataset, not a single combined funding total. The listed figures should be treated as recorded funding activity rather than proof that every award or round directly supports enzymatic plastic recycling.
Who holds the most enzymatic plastic recycling patents?
Flagship Pioneering Innovations VII LLC leads the listed patent holders with 7 patents, followed by CJ Cheiljedang with 6. Triad National Security LLC, Arepla S.r.l. and several other organizations each have 3 listed patents. The figures describe patent-holder counts in FACTS, not necessarily the full global patent portfolios of these organizations.
Is enzymatic plastic recycling patent activity growing?
No: patent activity declined 60.6% in the last 12 months compared with the previous 12 months, while FACTS lists 46 patents in its 24-month window. Publication activity moved in the opposite direction, with 305 publications in the last year and growth of 13.8%. This contrast suggests continued research momentum alongside a weaker recent patent trend.
How mature is enzymatic plastic recycling?
Enzymatic PET recycling is moving from enzyme and process development toward industrial deployment, but scale-up remains a challenge. Carbios’ planned China PET biorecycling plant was reported delayed to 2028 in June 2026. Research continues on enzyme stability, substrate accessibility and product inhibition, all of which affect the efficiency and practicality of processing post-consumer PET.
What are the latest developments in enzymatic plastic recycling?
Recent work includes interface-level measurement, faster enzyme screening and studies of PET breakdown products. In September 2026, Kobe University researchers reported a fluorogenic-probe method to study PET hydrolysis at solid interfaces. A July 2026 study from Beijing Forestry University and the Chinese Academy of Sciences applied fluorescent nanoparticle biosensors and droplet sorting to screen PET hydrolases.
What are the main approaches in enzymatic plastic recycling and how do they differ?
FACTS identifies 5 approaches: PET hydrolases, engineered enzymes, enzyme cocktails, whole-cell biocatalysis and immobilized enzyme processing. Hydrolases directly break PET down; engineering tunes enzyme properties; cocktails target multiple reaction steps; and whole cells combine enzyme activity with cellular conversion. Immobilization retains enzymes in a process, but each method faces trade-offs in stability, accessibility, compatibility or mass transfer.
Which countries lead enzymatic plastic recycling?
The United States leads with 640 documents, followed by China with 580. Germany has 299, the United Kingdom has 270 and France has 219. These figures describe document activity by country in FACTS. They indicate where research and related activity are concentrated, but do not by themselves measure commercial capacity or technology deployment.
What are the applications of enzymatic plastic recycling?
PET packaging is the largest listed application, with 116 documents, followed by polyester textiles with 30. The application categories also include nylon and polyamides, with 7 documents, and polyurethane products, with 1. PET packaging activity grew 36.7% in the latest 12-month comparison, while polyester textile activity declined 33.3%.