From Grass to Value: Refining Green Biomass for Protein and Nutrients

This practice abstract explores green biorefining as a climate-smart strategy to convert leafy crops like grass and clover into high-value products. In Denmark, the trans4num initiative supports refining green biomass into protein for feed, with by-products like pulp and brown juice reused for biogas, fertilizers, or materials. The system reduces nitrogen leaching, boosts soil health, and lowers emissions. Challenges include scaling, perishability, and supply coordination. Strong collaboration between farmers and refineries is key to unlocking circular, efficient, and resilient agricultural value chains.