Growing meat in a lab sounds like a materials science problem. Build the scaffold, grow the cells, harvest the tissue. What rarely gets discussed is what you feed those cells while they're alive. Cell culture media (the nutrient broth that keeps animal cells growing) is one of the most expensive and logistically complicated inputs in cultivated meat production. Some formulations still rely on animal-derived ingredients, which creates an obvious philosophical tension for an industry that exists to move away from animals. Finding a plant-based alternative that actually works has been harder than it sounds.
Why Raw Plant Protein Isn't Enough
Plant proteins seem like the obvious answer. They're abundant and getting cheaper. The issue is that raw plant proteins come loaded with compounds that cells don't tolerate well. Inositol hexaphosphate, more commonly known as phytic acid, is one of the main offenders. It binds to minerals and interferes with cellular metabolism, meaning a culture medium built on unprocessed plant protein can actively suppress the growth you're trying to encourage. The proteins need to be broken down into smaller, bioavailable peptides first, and the inhibitory compounds need to be removed in the process.
The method described in [US20260085281A1] uses a co-hydrolysis process that combines a plant-based protein source with live yeast cells, specifically strains like Saccharomyces cerevisiae. The yeast contributes its own proteins to the mix and simultaneously releases naturally produced enzymes (proteases, phytases, lipases) that break down both protein sources at once. Those same enzymes degrade the phytic acid that would otherwise cause problems. The result is a purified peptide hydrolysate with molecules in the 6.7 to 17 kDa range, suitable for supporting non-human metazoan cell growth without animal-derived inputs.
The plant sources eligible for this process include soy, pea, hemp, faba beans, and, critically, brewer's spent grain and distillers' spent grain. These are genuine industrial byproducts that exist in enormous volumes and currently have limited high-value applications. Using them as inputs for cell culture media is a meaningful step toward making cultivated meat production economically coherent.
The Medical Device Company Building Meat Infrastructure
BTL Healthcare Technologies a.s. is a Czech R&D entity within the BTL Group, a Prague-founded global manufacturer of medical devices operating across 90 countries. The group's background in precision bioprocessing clearly informs this kind of work. What makes this patent particularly worth watching is its relationship to BeneMeat, the BTL Group's cultivated meat subsidiary. In 2023, BeneMeat became the first company in the EU to be registered as a producer of cultivated meat for pet food, and it is currently targeting a commercial product launch in 2026 while building a 200-tonne-per-year production facility. A scalable, plant-based, low-cost culture medium is exactly the foundational technology that makes that ambition viable. This patent sits at the base of that stack.
Congratulations and a warm thank you to the inventors: Jiří Janoušek, Sára Šedivá, Markéta Verešová, Marek Popov, and Anežka Sigmundová, for working on the unglamorous infrastructure that the cultivated meat industry genuinely needs.
About the Author
I’m Kandice Vincent, a writer and editor covering cellular agriculture, food tech, and the future of how we produce and consume food. I work closely with founders, researchers, and mission-driven companies to turn complex science into something people can actually understand. I care deeply about where food is headed, how we get there, and who’s shaping that future. Based in Mexico, I’m usually writing with my rescue dog Taco nearby, who remains unimpressed by patents but highly invested in mealtimes.
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This article is based on publicly available information. Lab Grown Technologies is not affiliated with the inventors or organizations mentioned.
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