RESEARCH PROJECT

Green2Feed

Updated: June 2025

Project overview

The official name official name of the project:
Green2 Feed – Sustainable animal feed and biogas from green leaves
Project start: January 2022 Ending: December 2025
Project manager: Thomas Prade
Contact: Thomas Prade
Funded by: Energimyndigheten, Bio+ Programmet
Cooperators:

Short summary

Att bli en bioekonomi på riktig – hur löser vi frågor om hållbart proteinfoder och förnybar energi?

In order to increase substantially production of biogas that replaces fossil fuels we need vast amounts of biomass that agriculture can supply without affecting current food and feed production. But instead of digesting the green biomass from ley crops, sugar beet tops and other residues directly, Green2Feed aims to extract plant protein that can be used as feed for e.g. pigs and cows. The green biomass is separated in several fractions that are suitable as protein-rich animal feed while other fractions serve as feedstock for biogas production.

Input of beetroot blast in protein fractionation
Input of beetroot blast in protein fractionation. Photographer: Sven-Erik Svensson

This combined production enables replacement of fossil fuels and e.g. imported soya protein, with low control of sustainability. The ecological footprint of the Green2Feed prIn order to increase substantially production of bocess is expected to be much lower than that of the replaced products, as plant nutrients and organic carbon are returned to arable land in the form of digestate.otein, där vi inte kan kontrollera produktionens hållbarhet. Ekologiska fotavtrycken av Green2Feed processen förväntas bli mycket lägre än av produkterna som ersätts, då även växtnäring och organisk kol kan återföras till odlingsmark i form av rötrest.

Projectleader: Sabine Täuber at Energikontor Syd. 

Publiceringar

Nynäs, A.-L., E. Berndtsson, W. R. Newson, H. P. Hovmalm and E. Johansson (2024). Protein Fractionation of Leafy Green Biomass at the Pilot Scale: Partitioning and Type of Nitrogen in the Fractions and Their Usefulness for Food and Feed. ACS Food Science & Technology. https://doi.org/10.1021/acsfoodscitech.3c00426  

Cover to the ACS Food Science and Technology volume 4 issue 1, 19 January 2024.

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