OBA TAKASHI,大場 剛史,MURASE DAIKI,村瀬 大樹,KIKUCHI MAMIKO,菊池 麻実子
申请号:
JP2012130797
公开号:
JP2013253058A
申请日:
2012.06.08
申请国别(地区):
JP
年份:
2013
代理人:
摘要:
PROBLEM TO BE SOLVED: To provide a process for producing an extract from a lichen belonging to the genus Usnea or an inhibitor of activity of endothelin action which can be suitably used for skin external agents such as whitening agents.SOLUTION: There are provided a process for producing an extract from a lichen belonging to the genus Usnea which has a high diffractaic acid content and a low usnic acid content, the process including extracting a lichen belonging to the genus Usnea with an aqueous alcohol solution having an alcohol content of ≥30% by volume and ≤80% by volume and a process for producing an inhibitor for activity of endothelin, the process including extracting a lichen belonging to the genus Usnea with an aqueous alcohol solution having an alcohol content of ≥30% by volume and ≤80% by volume.COPYRIGHT: (C)2014,JPO&INPIT【課題】美白剤などの皮膚外用剤に好適に用いることができるサルオガセ(Usnea)属地衣類抽出物又はエンドセリン作用抑制剤の製造方法を提供する。【解決手段】サルオガセ属地衣類を、アルコール含有率が30体積%以上80体積%以下のアルコール水溶液を用いて抽出する、ジフラクタ酸高含有かつウスニン酸低含有サルオガセ属地衣類の抽出物の製造方法、及びサルオガセ属地衣類を、アルコール含有率が30体積%以上80体積%以下のアルコール水溶液を用いて抽出する、エンドセリン作用抑制剤の製造方法。【選択図】なし