Identification and Quantification of Ergothioneine in Cultivated Mushrooms by Liquid Chromatography-Mass Spectroscopy

L-ergothioneine is a naturally occurring antioxidant that is available from dietary sources. There is a lack of an adequate assay applicable to identify and quantify this antioxidant in plant material. Thus, the objective was to identify and quantify the ergothioneine content of mushrooms including Agaricus bisporus (white and brown strains), Lentinus edodes, Pleurotus ostreatus, P. eryngii, and Grifola frondosa by an analytical method utilizing...