Methane can be captured and transformed into protein-rich feed for farmed fish more cost-effectively than is true with current fish feeds. Methane-consuming bacteria can be grown in a chilled, water-filled bioreactor and fed pressurized methane, oxygen and nutrients such as nitrogen, phosphorus and trace metals, producing a protein-rich biomass that can be used as fishmeal in aquaculture. That could offset demand for fishmeal made from small fish or plant-based feeds requiring land, water and fertilizer. If production costs could be brought down far enough, it’s possible that the process could replace soybean and animal feeds as well.
Story Source: Stanford University
www.sciencedaily.com/releases/2021/11/211122135318.htm