An initiative backed by the EU is working on the creation of biodegradable materials aimed at agriculture, driven by the goal of minimizing plastic pollution and decreasing reliance on synthetic crop inputs.
Known as the PHAntastic project, which is supported by Horizon Europe, this venture commenced in September 2024 and is projected to continue until August 2028. It unites 15 collaborators from seven different countries across Europe.
The group is focused on developing biodegradable mulch films and nursery growth foams using polyhydroxybutyrate-co-valerate, commonly referred to as PHBV, sourced from residues generated during agri-food processing.
These new materials are engineered to serve as substitutes for traditional polyethylene-based agricultural plastics, which often require post-use collection and disposal. In contrast, the innovations from PHAntastic are designed to break down naturally in soil.
Additionally, the project is exploring the use of these materials as controlled-release systems for bio-based agricultural inputs. This encompasses a range of products including amino acid-derived biostimulants, algae extracts, plant-derived elicitors, as well as plant growth-promoting rhizobacteria.
The initial focus of applications is on horticultural crops such as lettuce and broccoli, alongside citrus and ornamental tree nurseries.
During its initial reporting phase, the project identified bio-based active substances evaluated through their agronomic effectiveness, compatibility with PHA materials, and adherence to the EU’s Safe and Sustainable by Design framework.
Researchers also identified particular bacterial strains that could bolster plant growth while hastening the biodegradation of PHA in the soil.
The consortium has successfully produced two grades of PHBV at pilot scale using residues from the agri-food sector. Preliminary prototypes of mulch films demonstrated mechanical properties comparable to currently available biodegradable options, while initial evaluations of growth foams indicated their potential to carry necessary crop inputs and beneficial microorganisms.
The project is set to move forward towards scaling up, conducting pilot demonstrations and field trials. Partners aim to validate these materials under real-world farming conditions and achieve Technology Readiness Level 6 by the target year of 2028.
