US biotech company Debut and Danish natural color supplier Oterra are joining forces to develop a fermentation-derived alternative to Red 40, a commonly used synthetic food coloring in the United States. The collaboration aims to produce natural color solutions covering orange, red, and violet shades, with a commercial product targeted for launch within approximately three years. With regulatory pressure accelerating the shift away from synthetic colorings, the FDA and the Department of Health and Human Services have urged food manufacturers to phase out certain FD&C certified dyes by the end of 2026, putting pressure on producers to find credible alternatives.

Using a fermentation-based production process, the collaboration between Debut and Oterra is expected to reduce land and water use compared to plant-derived red colorants, and the resulting ingredient will be compatible with vegan, kosher, and halal certifications. Oterra, an established natural color supplier, aims to strengthen its portfolio through biotechnology, targeting performance and stability requirements that have historically made synthetic dyes difficult to replace at scale. This partnership represents an innovative approach to addressing the changing regulatory landscape and consumer demands for more natural food coloring options.