The present invention provides an antifungal agent for food made from grains, wherein the antifungal agent contains chitinase. The present invention also provides food made from grains containing an antifungal agent comprise the said antifungal agent. Further, the present invention provides a method for producing food made from grains containing the antifungal agent. Provided is the safe and inexpensive antifungal agent for food made from grains.本發明係提供穀物加工食品之抗真菌劑,該抗真菌劑係含有幾丁質酶。本發明亦提供含有含該抗真菌劑之抗真菌劑的穀物加工食品。本發明更進一步提供含有抗真菌劑穀物加工食品的製造方法。依據本發明,可提供安全且便宜的穀物加工食品用抗真菌劑。