To provide a method for producing an extract highly containing ergothioneine from a mushroom inexpensively and safely, finding out the effectiveness of the obtained composition, and formulating in a medicinal composition for skin, a cosmetic, and a functional food, and to develop compositions effective for prophylaxis/prevention of troubles such as aging and metabolic syndrome.
Provided are an inexpensive and safety method for extracting ergothioneine from a mushroom in high concentration, and an extract having an effective function such as an anti-aging effect, an anti-metabolic syndrome action, anti-oxidant action, a tyrosinase inhibiting action, a lipase antagonism or 5-reductase antagonism. As the result, the extract has been found out to be effective to aging and metabolic syndrome.
NUKINA MANABU
SUZUKI TAKUYA
MATSUO YUKIMI
