Oterra Bets on Precision Fermentation to Replace Red 40 as FDA Scrutiny Intensifies
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Denmark-based natural color supplier Oterra is making a big play for the U.S. market as food and beverage companies face regulatory pressure to voluntarily transition to natural dyes by the end of this year.
Oterra already has a range of natural color solutions for Red 40, including dyes from red sweet potatoes and beets. But tapping into Debut's precision fermentation technology will allow Oterra to better scale the natural color and provide companies with a stable supply that's less connected to the volatilities of agriculture.
“If we manage the supply chain of the fermentation flow, it should be stable quality and not dependent on weather,” Luc Ganivet, head of innovation for Oterra, said in an interview with Food Dive. “That also means stable pricing, so no price fluctuation linked to crops.”
Red 40 is widely used as a color additive in sports drinks, sodas and candies. Close to 60% of branded candies use the artificial dye, according to an MIT analysis, and it's also found in 21% of sodas.
Ganivet said Debut's technology will give it a leg-up in the U.S. market, which is increasingly becoming crowded with ingredient suppliers hoping to capitalize on the rush to reformulate. Developing Red 40 through fermentation will scale supply and unlock other dye alternatives, including a potential replacement for Yellow No. 6.
“We are really going for big volumes and the one pigment developed through fermentation will have a huge range of application, much wider than what you are seeing today in the market,” Ganivet said. “It could be a breakthrough to bring something with fermentation at huge volumes of scale.”
Precision fermentation is a process that turns microorganisms, such as yeast, into mini factories, programming them to produce ingredients like proteins or even natural food dyes. As climate change and other challenges drive up the cost of ingredients, the technology offers a promising and less environmentally intensive solution to affordably scale food production.
However, precision fermentation's acceptance among consumers remains a potential barrier to expansion. The FDA recently delayed approval of a beetroot red color produced using fermentation after a consumer group argued it is synthetically and not naturally produced.
Ganivet stressed that precision fermentation is a complement, not a replacement, for natural dyes by offering food companies more options. Oterra is continuing to innovate for the U.S. market, recently opening a Wisconsin innovation hub to better support its food and beverage customers.
“This partnership is a stellar line with a strategy for us to bring new solutions, not only short term, but also long term, to keep the leading position,” Ganivet said.
Industry reactions have been mixed. Sarah Jenkins, a food policy analyst in Chicago, said the move is “a smart hedge against agricultural volatility,” but added that consumer trust in fermentation-derived colors remains fragile. “If people see ‘fermented’ on a label and think it's lab-made, that's a marketing disaster waiting to happen,” she said.
Mark Delgado, a product developer at a midsize candy company, was more blunt: “Honestly, I'm tired of the hype. Every startup with a yeast vat claims they're saving the world. Show me a stable, affordable red that doesn't taste like a chemistry experiment, and then we'll talk.”
Meanwhile, consumer advocate Lisa Tran, who runs a food transparency blog, said she's cautiously optimistic. “If it's truly natural and safe, I'm all for it. But the FDA needs to be clear about what 'natural' means in this context. We don't need another loophole for synthetic ingredients to hide behind.”
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