Ingredients of Tyrosinase and Elastase Inhibitory Activity from Calyx of Diospyros kaki Thunberg
2013
Cha, B.C., Sangji University, Wonju, Republic of Korea | Lee, E.H., Sangji University, Wonju, Republic of Korea
This study was conducted to investigate glutathione S-transferase(GST) activity, tyrosinase inhibitory effect and elastase inhibitory effect in persimmon calyx(calyx of Diospyros kaki Thunberg) for screening of functional materials from natural products. As a result, EtOAc extract of persimmon calyx turned out to be having tyrosinase inhibitory effect and elastase inhibitory effect. The active constituents of tyrosinase and elastase inhibitory effect were isolated from EtOAc extract of persimmon calyx. Their structure of compounds were identified as ursolic acid and (−)−daucosterol by spectroscopic evidence, respectively.
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