(43.55, 44.84, 29.60, 58.17, 43.05 and 38.73 nM, respectively)

Rhizophora mangle L (688.45 ± 18.21 and 7.13 ± 0.125 mg/g, respectively) and Krameria erecta (619.92 ± 28.16 mg/g and 22.29 ± 0.72 mg/g, respectively) than the other constituents. Conclusion: Rhizophora mangle and Krameria erecta possess five times the antioxidant activity of ascorbic acid and also demonstrate high phenolic contents, which supports the beneficial properties attributed to these plants in traditional medicine, and also justifies the use of the plants as alternative medicines.