The current yield from yeast is 0.0012 percent w/w, that is lower than the 0.0032 percent w/w yield from the tree. However, a soapbark tree needs 30 to 50 years to produce QS-21, whereas the yeast ...

Using yeast strains found in the bark of trees in ... “A next step in this kind of work would be to perform a pilot-scale brew and make some beer,” said Christopher Curtin, an associate ...