If you want to grow a cell-based steak, you’ll need a good growth medium — a nutrient-rich soup that feeds the cells as they proliferate. We’ve written previously about the cell-based meat industry’s push to ditch fetal bovine serum, a growth medium extracted from cow fetuses, and develop animal-free alternatives. By cutting animal inputs, companies can cut the costs of cell-cultivated meats, as well as the products’ environmental footprints.
Californian cell-based startup UPSIDE Foods switched away from fetal bovine serum years ago, and set a research and development team to the task of developing an alternative medium with zero animal inputs. Last week, the company announced that it has achieved that milestone, converting to an animal-free medium.
“Since day one, we knew that developing animal component-free cell feed would be crucial to fully realizing our vision of meat that’s better for the planet and its inhabitants,” company founder and CEO Dr. Uma Valeti said in a press release. “Cell feed is among the biggest drivers of cost and environmental footprint for the cultivated meat industry, and optimizing it is key to maximizing our positive impact. Our ultimate goal is to remove animals from our meat production process entirely.”
UPSIDE has used its animal-free medium to grow cell-cultivated chicken nuggets and hot dogs, demonstrating the versatility of the substrate. The company plans to grow all of its products with the new medium in future.
The achievement will help UPSIDE to scale as the company moves toward commercialization. Last month, the company unveiled its new production and development facility in Emeryville, Calif. The facility can produce 50,000 pounds of meat per year, and the company plans to boost that capacity to 400,000 pounds over time. Commercialization is still on hold as the industry waits for the USDA and FDA to create a regulatory framework — but with lower costs and increased capacity, UPSIDE is poised to take its products to the public.
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