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Table 2 Radical scavenging activity of the crude and fractionated extracts of Alpinia pahangensis against DPPH radical

From: Antioxidant potential, cytotoxic activity and total phenolic content of Alpinia pahangensis rhizomes

Extracts and standards IC50values (mg/ml)
Crude methanol 0.579 ± 0.017 c
Hexane 2.677 ± 0.094 e
Ethyl acetate 0.349 ± 0.009 b
Water 0.999 ± 0.038 d
Ascorbic acid 0.015 ± 0.600 a
BHA 0.013 ± 0.600 a
  1. IC50 values expressed are mean ± standard deviation of triplicate measurements. Means with different letters (a-e) in the same column are significantly different (p < 0.05). BHA and Ascorbic acid were used as standards.