Multifunctional Roles and Microbial Production Bottlenecks of Ergothioneine ACS Synthetic Biology Full article: Fungi derived natural antioxidants A review on mushrooms as a versatile therapeutic agent with emphasis on its bioactive constituents for anticancer and antioxidant potential Ergothioneine: an antioxidant with high potential Mushrooms (especially porcini) contain the highest levels of 2 powerful antioxidants, ergothioneine and glutathione, the latter of which is sometimes called the mother of all antioxidants and is a very important bodily