Antioxidative Characteristics of Anisomeles Indica Extract and Inhibitory Effect of Ovatodiolide on Melanogenesis

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Title:	Antioxidative Characteristics of Anisomeles Indica Extract and Inhibitory Effect of Ovatodiolide on Melanogenesis
Authors:	Huang, H.-C., Lien, H.-M., Ke, H.-J., Chang, L.-L., Chen, C.-C., Chang, T.-M.
Keywords:	1,1 diphenyl 2 picrylhydrazyl;2,2' azinobis(3 ethylbenzothiazoline 6 sulfonic acid);angiogenesis inhibitor;Anisomeles indica extract;antioxidant;melanin;monophenol monooxygenase;ovatodiolide;phenol;plant extract;trolox C;unclassified drug
Date:	2012
Issue Date:	2013-06-19T09:04:39Z (UTC)
Abstract:	The purpose of the study was to investigate the antioxidant characteristics of Anisomeles indica methanol extract and the inhibitory effect of ovatodiolide on melanogenesis. In the study, the antioxidant capacities of A. indica methanol extract such as DPPH assay, ABTS radical scavenging assay, reducing capacity and metal ion chelating capacity as well as total phenolic content of the extract were investigated. In addition, the inhibitory effects of ovatodiolide on mushroom tyrosinase, B16F10 intracellular tyrosinase and melanin content were determined spectrophotometrically. Our results revealed that the antioxidant capacities of A. indica methanol extract increased in a dose-dependent pattern. The purified ovatodiolide inhibited mushroom tyrosinase activity (IC50 = 0.253 mM), the compound also effectively suppressed intracellular tyrosinase activity (IC50 = 0.469 mM) and decreased the amount of melanin (IC50 = 0.435 mM) in a dose-dependent manner in B16F10 cells. Our results concluded that A. indica methanol extract displays antioxidant capacities and ovatodiolide purified from the extract inhibited melanogenesis in B16F10 cells. Hence, A. indica methanol extract and ovatodiolide could be applied as a type of dermatological whitening agent in skin care products. ? 2012 by the authors; licensee MDPI, Basel, Switzerland.
Relation:	International Journal of Molecular Sciences 13 (5) , pp. 6220-6235
Appears in Collections:	[化學系所] 期刊論文

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