PROBLEM TO BE SOLVED: To search from a component derived from a plant for a component having: potent whitening effect suppressing effect on free radical anti-wrinkling effect anti-pimple effect moisture retaining effect reinforcing effect on barrier function suppressing effect on inflammation due to ultraviolet rays and anti-decubitus effect, and to provide an external preparation for skin containing it.SOLUTION: An external preparation for skin comprises teadenol which is a new polyphenol derivative obtained by cultivating with tea leaf extract Aspergillus sp. (PK-1) (FERM P-21280) [Aspergillus sp. (PK-1)], Aspergillus sp. (AO-1) [Aspergillus oryzae (NBRS 4214) sp. (AO-1)], Aspergillus sp. (SK-1) [Aspergillus awamori (NBRS 4122) sp. (SK-1)], and Eurotium sp. (KA-1) (FERM P-21291) [Eurotium sp. (KA-1)].COPYRIGHT: (C)2014,JPO&INPIT【課題】植物由来の成分から強力な美白作用、フリーラジカル抑制作用、抗シワ作用、抗ニキビ作用、保湿作用、バリア機能増強作用、紫外線由来炎症抑制作用、抗褥瘡作用をもつ成分を探索し、それを含有する皮膚外用剤を提供すること。【解決手段】茶葉抽出物でアスペルギルス属sp.(PK-1)菌(FERM P-21280)〔Aspergillus sp.(PK-1)〕、アスペルギルス属sp.(AO-1)菌〔Aspergillus oryzae(NBRS 4214)sp.(AO-1)〕、アスペルギルス属sp.(SK-1)菌〔Aspergillus awamori(NBRS 4122)sp.(SK-1)〕、及びユーロチウム属sp.(KA-1)菌(FERM P-21291)〔Eurotium sp.(KA-1)〕を培養することによって得られる新規のポリフェノール誘導体であるテアデノールを配合した皮膚外用剤。【選択図】なし
