How Fermeate uses light to transform fermentation economics

Fermeate, a California-based startup, has raised $2 million in seed funding to scale its optogenetics platform, a technology that uses light to control gene expression and improve the efficiency of precision fermentation, a key process in food and biotech industries.

The funding round was led by Newfund Capital and included investors such as SOSV and Ajinomoto Group Ventures. The capital will support the expansion of a system designed to integrate into existing fermentation infrastructure without requiring major new investments.

According to the company’s cofounder and CEO Kevin Xu, the innovation addresses a fundamental challenge in the industry: cost efficiency. “Until now, the fermentation industry has largely relied on building more capacity to reduce costs,” he said. “With minimal capital investment and a typical payback period of under 11 months based on third-party technoeconomic analyses, we enable companies to improve margins without expanding their footprint.”

Fermeate’s approach focuses on increasing cell productivity during fermentation processes. As reported by AgFunderNews, the company has already partnered with four global food and ingredient firms, achieving up to a 200% increase in protein production within six months, with the potential to reach tenfold improvements.

The technology is based on optogenetics, a method that allows scientists to control biological processes using light. By inserting light-sensitive proteins into microbial cells, Fermeate can activate or deactivate specific genes in real time, optimizing production pathways during fermentation.

This level of control enables multiple benefits. It allows manufacturers to switch to cheaper feedstocks, eliminate the need for toxic chemical inducers like methanol, and transition to more efficient production systems. It also helps prevent genetic drift, a common issue that reduces productivity over time.

Saurabh Malani, cofounder and CTO, explained the process: “First you put in a light sensitive protein, which makes any strain light-controllable, and then you put in a promoter, which lets us target exactly which enzyme or protein we want to be controlled.” This two-step system enables precise manipulation of cellular behavior throughout the production cycle.

A key advantage of Fermeate’s platform is its compatibility with existing infrastructure. Instead of replacing fermentation tanks, the system can be added externally, using light inputs delivered through a connected device. This “plug-and-play” approach significantly reduces capital expenditure compared to building new bioreactors.

The company also leverages artificial intelligence and machine learning to determine optimal light patterns for different production goals. By dynamically adjusting gene expression, it can eliminate bottlenecks in protein synthesis, improving overall efficiency.

Xu highlighted the broader impact of this innovation on the industry. “Every major industrial transformation is built on a foundational infrastructure layer, and the bioeconomy will be no exception,” he said. “If we can get this control layer right, we can make biomanufacturing just as efficient as any other type of manufacturing.”

Beyond technical performance, the platform addresses a persistent issue in biomanufacturing: declining productivity over time. Even optimized microbes can lose up to 50% of their efficiency during production runs. Fermeate claims its system not only increases output but also sustains high productivity for longer periods.

The startup is currently exploring different business models while already generating revenue through paid pilot projects. Its long-term vision is to become a foundational technology provider for the bioeconomy, enabling more scalable and cost-effective production across industries.

As the demand for alternative proteins and sustainable ingredients grows, innovations like Fermeate’s could play a critical role in making precision fermentation economically viable at scale.