PROCESS FOR PRODUCING EXTRACT FROM LICHEN BELONGING TO GENUS USNEA

摘要

PROBLEM TO BE SOLVED: To provide a process for producing an extract from a lichen belonging to the genus Usnea which can be suitably used for skin external agents such as whitening agents.;SOLUTION: A process for producing an extract from a lichen belonging to the genus Usnea which has a low usnic acid content, includes extracting a lichen belonging to the genus Usnea with an aqueous alcohol solution having an alcohol content of 70% by volume, and applying at least one treatment selected from the group consisting of a low temperature preserving treatment and a hydration treatment to the obtained extract, in which a remaining ratio of the usnic acid after subjected to the treatment is 50%.;COPYRIGHT: (C)2014,JPO&INPIT