PROLIFIC contributes to these ambitions. University of Bologna, University of Pisa and Femto Engineering are developing composites combining commercially available biopolymers and fibre rich residues remaining after PROLIFIC extraction steps. Utilising residues is an important part in the cascading approach of PROLIFIC and decisive to achieve the “zero waste” goal.
The partners were able to compose formulations with mechanical and tensile properties suitable for the actual melting and moulding process, including up to 20 % coffee silverskin or 10 % of chickpea residues after protein extraction. Test to also include polyphenols extracted from coffee green beans to provide anti-oxidant activities are ongoing. We will eventually use such composites to produce prototypes of coffee capsule bodies and rigid jars for cosmetic packaging.