MeaTech 3D announced last week that it has filed a provisional patent application with the United States Patent and Trademark Office to cover its new stem cell manipulation technology. The Israel-based company’s proprietary process uses plant inputs to transform embryonic mesenchymal stem cells (or eMSCs) into fat cells.
The patent-pending process can be used to produce intramuscular fat: the fat structures that ribbon through a sophisticated cut of meat such as a ribeye steak. The company envisions the technology working hand-in-hand with its meat bioprinting process, which involves extruding bio-inks made from muscle and fat cells to create complex structures.
This isn’t the first patent application that MeaTech has filed in the U.S. In June, they applied for a patent to secure their bioprinting process. This push to accumulate intellectual property should help the company to protect its investments in research and development as international cell-cultured meat producers prepare to compete for consumers’ affections. (The company spent $2.5 million on R&D in 2020, up from $0.2 million the year before.)
This latest patent application marks a milestone in MeaTech’s push to reduce its dependence on animal-derived materials. The most common method for turning eMSCs into fat cells involves the use of animal hormones insulin, dexamethasone, and isobutylmethylxanthine.
Yet despite this advancement, the company’s production process isn’t free of animal inputs. The eMSCs that the company relies on are generally derived from bone marrow or fat, and are most commonly grown in a substrate of fetal bovine serum.
Meanwhile, other food tech startups are vying to find alternative fat solutions that will further scale down animal intensivity. We recently reported on Nordic startup Melt&Marble’s ambitions in this arena: The company uses a fermentation process to produce fatty acids, and can customize its recipe to create fats that complement different plant-based proteins. Motif Foodworks is pursuing a different approach, tweaking plant oils to taste and feel more like animal fat.
Excell, a spinoff of Ecovative Designs, is working on another solution to the industry’s animal fat problem. The startup is currently working with cell-cultured companies to test its mycelium (or mushroom root system) materials as alternative growing scaffolds for their meat products.
Despite MeaTech’s eagerness to secure its fat production process against competitors, it’s hard to predict whether the stem-cell reliant technique will remain relevant for long in the rapidly advancing industry. As cell-cultured meat startups like MeaTech seek out ways to scale up production while cutting costs and reducing environmental impacts, it may ultimately make more sense to go hybrid, turning to plant-based fat sources.
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