From the table, value of total phenolic content of dichloromethane extract was higher than ethyl acetate extract. Although, we found that dichloromethane extract has a higher total of phenolic content than ethyl acetate extract, but the activity of antioxidant properties was lower than ethyl acetate extract (Table 2). This result may caused by the different subtituent pattern from chromophore group of phenolic compound. Substituent such as rhamnose sugar will decreased the bioactivity due to the blockade of hydroxyl group by glycosidic linkage (Materska and Perucka, 2005). Beside that another important factor is also the position and total of hydroxyl group. Second hydroxyl group at position meta will resulted lower antioxidant activity than at position of ortho and para. This due to electronic effects of OH group related to the radical cation stability. Total of hydroxyl group will also affect to antioxidant activity. The higher number of hydroxyl group will also increased the bioactivity that means polyphenolic compounds have better bioactivity than monophenolic compound. Moreover, methoxylic group that substituted in monophenolic compound bioactivity will increase antioxidant property (Cuvelier et al., 2000; Merkl et al., 2010).