Startup Raises $9 Million for its New Method to Recycle CO2 into Protein-Rich Animal Feed

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An agriculture feed startup has received $9.4 million in initial funding for its technology that produces pure protein from CO2. The protein would come from carbon dioxide generated by industrial exhaust, and would be combined with hydrogen to create scalable, cheap animal feed to replace soybeans—a major feed crop linked heavily with deforestation. Deep Branch combines some of the most basic chemical building blocks, present in everything from stars to skyscrapers—like carbon, oxygen, and hydrogen—inside a fermentation chamber where it produces high-value protein called “Proton.” This Proton is then dried, mixed with other nutrients, and turned into pellets at a 90% CO2 savings rate compared to other feed sources. Attracting support from the biggest feed producers in Europe, as well as carbon-control/sustainable investment funds from financial institutions like Barclays, a Series-A funding round has now been completed with multiple long-term investment commitments. James Ferrier, an investment director at Barclays, said in a statement that “Deep Branch’s technology has the potential to be part of the solution to overcome the biggest environmental challenges of our time.”

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