PROCESS FOR PRODUCING EXTRACT FROM LICHEN BELONGING TO GENUS USNEA

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 ac...

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Bibliographische Detailangaben
Hauptverfasser:	OBA TAKASHI, KIKUCHI MAMIKO
Format:	Patent
Sprache:	eng
Schlagworte:	HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS
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Beschreibung
Zusammenfassung:	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