Find in Library

The purpose of this study was the bioactive identification of ethanol extracts (EtOH) from the bark and leaves of Sonneratia alba that have antioxidant activity. Mangrove bark and leaf powder each added with ethanol (1: 3, w/v) sonicated for 10 minutes. The obtained extract was tested for phytochemicals, antioxidant activity using DPPH and identification of the compounds using UPLC-ESI-MS. The ethanol extract from the bark and leaves of S. alba contains bioactive compounds that have antioxidant activity from the group of phenol compounds and the both extracts contain 7-hydroxycoumarin or scopoletin. The antioxidant activity (IC50 value) of each extract was 67,211±2,482 g/ml and 88,706±4,782 g/ml, respectively. Ethanol extract from bark and leaves of S. alba has the potential to be an antioxidant agent.