Biobased-and-biodegradable-controlled-release-fertilizers PHA
Application

Controlled-release fertilizers

Release nutrients,
not microplastics.

And we know how to do that!

With Caleyda®

We have developed a new generation of materials.

Caleyda is the only fertilizer coating that combines complete biodegradability with industrial performance. Derived from organic waste instead of fossil fuels, Caleyda offers fertilizer producers a future-proof solution that meets stringent EU regulations, protects soil health, and helps customers achieve their sustainability goals – without compromising on performance.

PHA production from food waste

Truly Biodegradable

No persistant microplastics

Performance Parity

Release patterns comparable to PU.

Low-temperature coating processes

below the degradation temperature of urea

The Soil-Safe Coating

Why Controlled-Release Fertilizers Need Caleyda®

Remy Jongboom explains why Caleyda®, produced from organic residual streams, is an excellent material choice for making controlled-release fertilizer coatings both biobased and biodegradable. He highlights why controlled- release Fertilizers need Caleyda®.

How it's made

Caleyda® is made from organic side streams

A new, circular chain — powered by microbes instead of oil wells.

01

Second generation feedstock

Our journey begins with resources that are already around us. We use organic residual and side streams as feedstock. By giving these residual streams a new purpose, we turn what was once considered waste into the starting point for a new generation of biopolymers.

02

PHAenix® licensing technology

Nature provides the next step. In our Phaenix® process, naturally occurring mixed-culture microorganisms feed on these residual streams and convert the available carbon into PHA. Inside their cells, the biopolymer is naturally stored. We harvest this PHA-rich biomass.

03

The Extraction of caleyda®

But the journey does not end here. To unlock the value of the biopolymer, PHA is gently recovered from the biomass through our extraction process. The result is a purified, high-quality biopolymer, Caleyda®, with tunable properties and a superior biodegradability

04

Back again to nature

And when its useful life comes to an end, Caleyda® can be mechanically or biologically recycled. When it does end up in nature, it can biodegrade without leaving persistent microplastics behind. What started as residual carbon becomes a valuable material.

Processing methods

Innovative processing methods for biodegradable biopolymers

Contact

Questions about this application?

Our specialist is happy to talk about your process, your requirements and what this application can do for you. Call or send an e-mail.

Paques Biomaterials

Application team

Our partners

Polyurethane as a coating for fertilizers needs to be replaced with a biopolymer within Europe in 2028. And we know how to do that.

At Paques Biomaterials we have developed a new generation of materials.

PROPHAX: Profile Extrusion of PHA-X

CorPHA-IM: Conversion of Residual Industrial Food Streams into PHA Products via Injection Moulding