TYROSINASE INHIBITOR

PROBLEM TO BE SOLVED: To obtain a tyrosinase inhibitor having higher inhibitory activity than that of the conventional tyrosinase inhibitor and higher stability by using a specific extract from the grains of Tatary buckwheat (Fagopyrum tataricum). SOLUTION: The grains of Tatary buckwheat cultured at...

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Bibliographische Detailangaben
Hauptverfasser:	YAMAZAKI RIKIO, OGAWA YASUTAKE, YAMATO TSUNETOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS BEER BIOCHEMISTRY CHEMISTRY COMPOSITIONS THEREOF CULTURE MEDIA ENZYMOLOGY HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE METALLURGY MICROBIOLOGY MICROORGANISMS OR ENZYMES MUTATION OR GENETIC ENGINEERING ORGANIC CHEMISTRY PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS SPIRITS VINEGAR WINE
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To obtain a tyrosinase inhibitor having higher inhibitory activity than that of the conventional tyrosinase inhibitor and higher stability by using a specific extract from the grains of Tatary buckwheat (Fagopyrum tataricum). SOLUTION: The grains of Tatary buckwheat cultured at Yunnan in China or in Nepal are used as a raw material to effect extraction with aqueous acetone and the extract is used as an active ingredient. The extract may be directly used as it is, but cis-umbellic acid (1,4-dihydroxy cis-cinnamic acid) of the formula isolated from the extract may be used. As the raw material, the outer skins after using the core of the grains (the first flour) can be preferably used. The extract obtained from the outer skins has particularly high ability to inhibit tyrosinase. This tyrosinase inhibitor is safe to human body and can be used as a browning preventive for fruits and vegetables and also as a food additive for cut fruits and cut vegetable.