Precision Yeast for Performance

In the ever-evolving world of biofuels, innovation isn’t just a buzzword—it’s a necessity. At the forefront of this transformation is IFF’s Fermentation Bioactives team, led by principal scientist Caroline Peres, who is redefining how yeast strains are developed, tested, and deployed in ethanol production. As featured in Fermentation Forward by Ethanol Producer Magazine, Peres highlights how advanced yeast development, AI-powered fermentation tools, and tailored strain solutions are helping ethanol producers boost yield, improve robustness, and meet carbon intensity goals through smarter, more adaptive fermentation strategies.

Key Points:

The Science Behind the Strains

IFF’s approach to fermentation is anything but ordinary. Our yeast strains, though microscopic in size, are the result of years of global R&D, selective breeding, genetic enhancement, and even artificial intelligence. These strains aren’t just lab-tested—they’re field-proven, with scientists like Peres spending weeks inside ethanol plants to ensure real-world performance matches lab expectations.

Yeast Blends Offer Flexibility

IFF’s SYNERIXA® Gemstone Collection offers ethanol producers a powerful and flexible toolkit to tailor fermentation strategies to their plant’s specific needs.  Whether the goal is speed, robustness, or maximum yield, producers can use these strains individually or blend them to create customized fermentation profiles that respond to variables like high temperatures, organic acid stress, or corn prices.

AI and Robotics: The New Lab Assistants

IFF isn’t just relying on traditional methods. Their labs—from California to the Netherlands— are equipped with robotics capable of screening millions of yeast colonies. This high-throughput capability accelerates the discovery of hidden gems—yeast strains with exceptional performance traits.

Complementing this is IFF’s proprietary XCELIS® AI platform, a predictive tool that acts like a “crystal ball” for fermentation. It helps producers simulate changes, optimize processes, and even assess carbon intensity impacts—all before making real-world adjustments.

What’s Next?

The future of fermentation at IFF is focused on reducing side products like glycerol and CO₂, diversifying yeast strains, and increasing fermentation rates. With AI, robotics, and decades of plant-level insight, the next generation of yeast products is already in development.

As Caroline Peres puts it, “You get the whole package when you work with us.” And in an industry where every drop counts, that package could be the key to unlocking new levels of efficiency and sustainability.