Recent Strategies for the Biosynthesis of Ergothioneine Journal of Agricultural and Food Chemistry Dried porcini mushrooms are sources of the antioxidants glutathione (GSH) and ergothionine (ERGO) 40g. Ergothioneine: an antioxidant with high potential Biosynthesis of ergothioneine: current state, achievements, and perspectives Applied Microbiology and Biotechnology Springer Nature Link In a study, researchers found that mushrooms have high amounts of the ergothioneine and glutathione, both important antioxidants, said the senior author. The researchers also found that the amounts the two compounds