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KMID : 0861020180330010027
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Korea Journal of Herbology
2018 Volume.33 No. 1 p.27 ~ p.35
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Evaluation of Dermal Bioactive Properties of the Gastrodiae Rhizoma Extract by Steaming Times
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Lee Ah-Reum
Kim Geon-Hyeong
Kwon Oh-Jun
Kim Soo-Hyun
Kim Kyeong-Jo
Roh Seong-Soo
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Abstract
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Objectives : Gastrodiae Rhizoma extract (GE) is possess the various bioactive compounds such as gastrodin, vanilyl alcool and p -hydroxybenzyl alcohol. Various processing methods such as steaming have been widely applied to ease ingestion and enhance the therapeutic effects of plant materials including GE in East-Asia area. The aim of this study was to evaluate the dermal bioactive properties of GE.
Methods : First, total phenol, total flavonoid, gastrodin and ergothionein contents of GE were measured. In order to evaluate the dermal bioactive properties of steamed GE compared with not-steamed GE, tyrosinase, collagenase and elastase inhibitory activity were tested. Furthermore, the anti-oxidant activity of GE assessed based on DPPH and ABTS radical scavenging assay.
Results : In results, total phenol and total flavonoid contents were increased when 9 times steamed compared to notsteamed GE. Also, GE increased gastrodin contents, in proportion to the number of steaming times and ergothioneine content was abolished in the steaming state. The DPPH radical scavenging activity of GE increased by steaming, but the ABTS radical scavenging activity was not related to the steaming process. In addition, the tyrosinase inhibitory activity was increased as the number of steaming times of GE increased. Collagenase was most inhibited by 4 times steamed GE, and elastase was inhibited by 8 times steamed GE.
Conclusion : In conclusion, these results suggest that steamed GE extract has the potential as a cosmetic material which possess anti-oxidant and whitening activities than not steamed GE.
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KEYWORD
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Gastrodiae Rhizoma extract, steaming times, dermal bioactive properties, anti-melanogenesis, anti-wrinkle
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