Phenol content,antioxidant and tyrosinase inhibitory activity of mangrove plants in Micronesia  

作　　者：Sung-Suk Suh Jinik Hwang Mirye Park Heung-Sik Park Taek-Kyun Lee 

机构地区：[1]South Sea Environment Research Department.Korea Institute of Ocean Science and Technology [2]Korea South Pacific Ocean Research Center,Korea Institute of Ocean Science and Technology

出　　处：《Asian Pacific Journal of Tropical Medicine》2014年第7期531-535,共5页亚太热带医药杂志（英文版）

基　　金：supported by Korea Institute of Ocean Science&Technology research project:E99161

摘　　要：Objective:To find out and compare the in vitro antioxidant and tyrosinase inhibitory activities of two species of mangrove plants.Methods:Mangrove samples were harvested at the shoreline on the island of Weno,Chuuk State in Micronesia.The phenol content,antioxidant activity(based on DPPH-free radical scavenging)and tyrosinase inhibitory activity in different tissues(leaves,barks and roots)of Rhizophora stylosa(R.stylosa)and Sonneratia alba(S.alba),collected from the island of Weno.Results:Total phenol content ranged from 4.87 to 11.96 mg per g of freeze dried samples.The highest antioxidant activity was observed in R.styiosa bark(85.5%).The highest tyrosinase inhibitory activity was found in S.alba bark.Also,total phenol content and antioxidant activity were higher in methanol extracts than in aqueous extracts.Conclusions:Taken together,the results of this study proved that mangroves can be excellent sources of antioxidant compounds.Objective:To find out and compare the in vitro antioxidant and tyrosinase inhibitory activities of two species of mangrove plants.Methods:Mangrove samples were harvested at the shoreline on the island of Weno,Chuuk State in Micronesia.The phenol content,antioxidant activity(based on DPPH-free radical scavenging)and tyrosinase inhibitory activity in different tissues(leaves,barks and roots)of Rhizophora stylosa(R.stylosa)and Sonneratia alba(S.alba),collected from the island of Weno.Results:Total phenol content ranged from 4.87 to 11.96 mg per g of freeze dried samples.The highest antioxidant activity was observed in R.styiosa bark(85.5%).The highest tyrosinase inhibitory activity was found in S.alba bark.Also,total phenol content and antioxidant activity were higher in methanol extracts than in aqueous extracts.Conclusions:Taken together,the results of this study proved that mangroves can be excellent sources of antioxidant compounds.

关 键 词：RHIZOPHORA stylosa SONNERATIA alba Phebolics ANTIOXIDANT ACTIVITY Tyrosinase inhibitory ACTIVITY 

分 类 号：R341[医药卫生—基础医学]