Abstract

Ekbal Hasan Al-Khateeb*, Ghada Ahmad Al-Assi, Ashok K. Shakya, Naseer Al-Rawi and Naeem Shalan

DOI : http://dx.doi.org/10.13005/ojc/350309

The macerated methanolic extract of P. vera L., A. strigosa and I. paraguariensis A. St.-Hil.  were used for evaluating their antioxidant. The results of present study showed that the IC₅₀ value for Pistacia vera L., Anchusa strigosa and Ilex paraguariensis A. St.-Hil. extracts were 5.85 ± 0.11, 43.75 ± 1.05 and 8.98 ± 0.65µg/ml respectively compared to 1.48 ± 0.05 µg/ml of ascorbic acid against DPPH radical. The IC₅₀ values for β-carotene bleaching (BCB) assay for P. vera L., A. strigosa and I. paraguariensis A. St.-Hil. extracts were 390.1 ± 7.5, 425.8 ± 6.5 and 410.2 ± 9.0 µg/ml respectively compared to 9.5 ± 0.4 µg/ml of rutin. The results of β-carotene bleaching (BCB) assay showed that the plant extract exhibits weak activity compared to rutin. In conclusion, the present study indicates that these plants and their phytochemical constituents can be exploited in future extensively for controlling oxidative stress and ailments.

Antioxidant Potential; Β-Carotene Bleaching Assay; DPPH Radical Scavenging Activity; Natural Products; Oxidative Stress; Redox Properties

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