PROBLEM TO BE SOLVED: To provide a deodorant and an antioxidant, with enhanced deodorizing activity and antioxidative activity.SOLUTION: The deodorant containing a fermented product with enhanced deodorizing activity is obtained by fermentation of an edible mushroom using microorganisms. The antioxidant containing a fermented product with enhanced antioxidative activity is obtained by fermentation of an edible mushroom using microorganisms.