Mycobiology.  2009 Mar;37(1):43-47. 10.4489/MYCO.2009.37.1.043.

Ergothioneine Contents in Fruiting Bodies and Their Enhancement in Mycelial Cultures by the Addition of Methionine

• Lee WY
• Park EJ
• Ahn JK
• Ka KH

• KMID: 2053001
• DOI: http://doi.org/10.4489/MYCO.2009.37.1.043

Abstract

The levels of ergothioneine (ERG), which have been shown to act as an excellent antioxidant, were determined in both fruiting bodies and mycelia of various mushroom species. We found that ERG accumulated at different levels in fruiting bodies of mushrooms and showed up to a 92.3-fold difference between mushrooms. We also found that ERG accumulated at higher levels in mycelia than in fruiting bodies of economically important mushroom species such as Ganoderma neo-japonicum, G. applanatum and Paecilomyces tenuipes. The addition of 2 mM methionine (Met) to mycelial culture medium increased the ERG contents in most mushroom species tested, indicating that Met is a good additive to enhance the ERG levels in a variety of mushroom species. Taking these results into consideration, we suggest that the addition of Met to the mycelial culture medium is an efficient way to enhance the antioxidant properties in economically important mushroom species.

Keyword

Antioxidant; Ergothioneine; Methionine; Mycelial culture

MeSH Terms

Agaricales
Ergothioneine
Fruit
Ganoderma
Methionine
Paecilomyces
Ergothioneine
Methionine