PROBLEM TO BE SOLVED: To provide a deodorant which has excellent deodorization effect for unsaturated aldehyde, and also has high safety.SOLUTION: The deodorant effective for deodorizing the unsaturated aldehyde is composed of an extract extracted from at least one of the outer skin and inner skin of one or more kinds of fruits selected from the group consisting of the Castanea of the Fagaceae.COPYRIGHT: (C)2012,JPO&INPIT【課題】不飽和アルデヒドの消臭効果に優れ、かつ安全性の高い消臭剤を提供すること。【解決手段】ブナ科(Fagaceae)のクリ属(Castanea)からなる群より選択される1種又は2種以上の果実の鬼皮並びに渋皮の少なくとも1つから抽出した抽出物からなる不飽和アルデヒドの消臭に有効な消臭剤とする。【選択図】なし