PROBLEM TO BE SOLVED: To provide a novel collagenase inhibitor which is not known conventionally and to provide an application article thereof.SOLUTION: The invention provides a collagenase inhibitor containing a solvent extract of a rice koji in which at least one kind selected from Aspergillus kawachii and Aspergillus awamori is bred. The collagenase inhibitor concerned has an excellent collagenase inhibition activity, and has little toxicity and irritation to a human body. Therefore, it can be used for the application of cosmetic composition, functional food, and the like.COPYRIGHT: (C)2015,JPO&INPIT【課題】従来知られていなかった新規のコラゲナーゼ阻害剤、及びその応用品を提供する。【解決手段】白麹菌(Aspergillus kawachii)及び黒麹菌(Aspergillus awamori)から選択される少なくとも1種を繁殖させた米麹の溶媒抽出物を含有するコラゲナーゼ阻害剤。当該コラゲナーゼ阻害剤は優れたコラゲナーゼ阻害活性を有し、人体に対する毒性や刺激性が少ない。そのため、化粧料組成物、機能性食品等の用途に使用することができる。【選択図】図1
