Rising global demand for meat will result in increased environmental pollution, energy consumption, and animal suffering. Cultured meat, produced in an animal-cell cultivation process, is a technically feasible alternative lacking these disadvantages, provided that an animal-component-free growth medium can be developed. Small-scale production looks particularly promising, not only technologically but also for societal acceptance. Economic feasibility, however, emerges as the real obstacle.
In a paper in the Cell Press journal Trends in Biotechnology, Cor van der Weele of Wageningen University in The Netherlands and coauthor Johannes Tramper describe a potential meat manufacturing process, starting with a vial of cells taken from a cell bank and ending with a pressed cake of minced meat.
Cor van der Weele point out that the rising demand for meat around the world is unsustainable in terms of environmental pollution and energy consumption, in addition to animal suffering associated with factory farming.
Fortunately, it’s already possible to make meat from stem cells, as demonstrated by Mark Post, a professor of tissue engineering at Maastricht University who created the first lab-grown hamburger in 2013.
There will be challenges when it comes to maintaining a continuous stem cell line and producing cultured meat that’s cheaper than meat obtained in the usual way, they say.
However, “cultured meat has great moral promise,” write van der Weele and Tramper. “Worries about its unnaturalness might be met through small-scale production methods that allow close contact with cell-donor animals, thereby reversing feelings of alienation. From a technological perspective, ‘village-scale’ production is also a promising option.”
Via Dr. Stefan Gruenwald