BioCordelia
Bio-based and Biodegradable Controlled Release Delivery Systems for Agricultural Inputs
Bio-based and Biodegradable Controlled Release Delivery Systems for Agricultural Inputs
The EU faces growing pressure to boost agricultural productivity sustainably amid climate change, food security, and environmental concerns. Of its 161.8 million hectares of farmland, 122.9 million hectares receive controlled-release fertilisers. Although they improve nutrient efficiency and reduce leaching while lowering dosage and costs, most rely on non-biodegradable polymer coatings that persist in soil, causing microplastic pollution and damaging soil fertility, carbon storage, and biodiversity.
BIO-CORDELIA will address these challenges by developing two new categories of fully bio-based and biodegradable controlled-release fertilisers using unique lignocellulosic materials derived from underutilised sidestreams of European agricultural and forest industries. The project team will apply a patented aldehyde-assisted fractionation technology to fractionate lignocellulosic components. This technology will enable the extraction of cellulose and, for the first time, the isolation, purification, and functionalisation of native, uncondensed lignin and hemicellulose, two materials usually treated as waste. In BIO-CORDELIA, this technology will be used to valorise sustainably sourced olive pits and birch bark from Europe.
The extracted lignocellulosic materials will be used to develop two different bio-based controlled-release delivery systems, bio-matrix and bio-coating, with tailored release durations of up to two and eight months, respectively. The project will also evaluate biodegradability of the bio-matrix and bio-coating materials and their nutrient release efficacy, with focus on factors affecting the overall biodegradation process, as well as plant and soil health. Small-scale field trials in two European regions will demonstrate the viability of BIO-CORDELIA controlled-release fertilisers.