In the quest for sustainable food production, scientists are constantly exploring innovative ways to utilize waste products. Šáner et al., in a study published in the Journal of Analytical and Applied PyrolysisPyrolysis is a thermochemical process that converts waste biomass into bio-char, bio-oil, and pyro-gas. It offers significant advantages in waste valorization, turning low-value materials into economically valuable resources. Its versatility allows for tailored products based on operational conditions, presenting itself as a cost-effective and efficient More, investigated the potential of converting leftover plant material from a “green biorefinery” into biocharBiochar is a carbon-rich material created from biomass decomposition in low-oxygen conditions. It has important applications in environmental remediation, soil improvement, agriculture, carbon sequestration, energy storage, and sustainable materials, promoting efficiency and reducing waste in various contexts while addressing climate change challenges. More suitable for animal feed.

Green biorefineries aim to extract valuable proteins from grasses and legumes, leaving behind a high-fiber residue. Instead of discarding this residue, the researchers used a process called pyrolysis to transform it into biochar. Pyrolysis involves heating the material in a low-oxygen environment, breaking it down into solids, liquids, and gases. The researchers experimented with different pyrolysis temperatures and times to find the optimal conditions for producing high-quality biochar. They found that the biochar produced from this biorefinery residue had uniform characteristics and low levels of contaminants, making it safe for animal feed.  

This study highlights the potential of utilizing biorefinery byproducts to create valuable resources like biochar. Incorporating biochar into animal feed could offer various benefits, such as improved digestion and animal health. This approach not only reduces waste but also contributes to a more sustainable and circular economy.  

SOURCE: Šáner, A., Ambye-Jensen, M., Jensen, S. K., Vorkamp, K., Ceccato, M., & Smith, A. M. (2025). Biochar produced from bio-refined herbaceous fibre residue for feed and technical purposes. Journal of Analytical and Applied Pyrolysis, 107004. https://doi.org/10.1016/j.jaap.2025.107004