PROBLEM TO BE SOLVED: To provide a DNA repair promoter in which the repair of the damage of DNA by an ultraviolet B radiation is effectively promoted, and further the safety is high to a human body.SOLUTION: The DNA repair promoter includes an extract in which the compression strained lees of a fruit of a Delaware kind (Delaware) is extracted by a polar solvent after an enzyme treatment is performed. The fruit that does not substantially contain a seed in which the gibberellin treatment is performed is desirably used. As the enzyme treatment, a cellulase treatment and next a polygalacturonase treatment are desirably performed.COPYRIGHT: (C)2012,JPO&INPIT【課題】紫外線B波によるDNAの損傷の修復を効果的に促進し、さらに人体に対して安全性の高いDNA修復促進剤の提供。【解決手段】デラウエア種(Delaware)の果実の圧縮搾汁粕を酵素処理した後に極性溶媒で抽出した抽出物を含有するDNA修復促進剤。好ましくは、ジベレリン処理され実質的に種子を含まない果実が用いられる。更に酵素処理としては、セルラーゼ処理、次いでポリガラクツロナーゼ処理を行うことが好ましい。【選択図】なし