KOJI FERMENTED COMPOSITION, SEASONING USING SAME, ANTIOXIDANT, AND FOOD OR BEVERAGE

摘要

Provided are: a koji fermented composition that, when using black koji fungus, has a reduced amount of generated citric acid without a loss in xylanase activity or acid protease activity of the black koji fungus; and a method for producing the koji fermented composition. The koji fermented composition is obtained by contacting tea leaves to black koji fungus, and culturing the result.