(Anticlockwise from bottom left) These are spent beer grains, fermented beer grains, nutrient liquid used to grow yeast, beer. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy ...
More information: Spent brewer's yeast as a selective biosorbent for metal recovery from polymetallic waste streams, Frontiers in Bioengineering and Biotechnology (2024). DOI: 10.3389/fbioe.2024. ...