This video attempts to explain the biotechnology behind the company Quorn. It describes how the microfungus Fusarium venenatum grows and why it makes a good meat substitute. Further, this video describes how an airlift bioreactor works to allow continuous collection of biomass.
The information that this video is based on can be found on Quorn’s FDA filing, which is archived here: web.archive.org/web/20121018222514/www.accessdata.fda.gov/scripts/fcn/gras_notices/grn000091.pdf#
Quorn ingredients for bratwurst: groceries.morrisons.com/webshop/product/Quorn-Bratwursts-2-Pack/431062011
Other useful papers on the topic www.ncbi.nlm.nih.gov/pubmed/11954786 and www.sciencedirect.com/topics/engineering/airlift-reactor
(Sorry some of these are behind paywalls)
This video is not endorsed by or intended to represent the views of Quorn. It is merely one biologist’s interpretation of how the technology is likely to work.