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Table 2 Antioxidant activity of E. elatior flowers, extracted with different solvent and collected from three different locations

From: Secondary metabolites constituents and antioxidant, anticancer and antibacterial activities of Etlingera elatior (Jack) R.M.Sm grown in different locations of Malaysia

Locations Solvents DPPH (%) IC50 (μg/mL) FRAP (mM Fe(II)/g)
Kelantan Aqueous 76.4 ± 5.89c 34.5 ± 1.42f 6.88 ± 0.62b
  Ethanol 63.2 ± 4.31e 41.2 ± 2.16e 5.66 ± 0.75c
Pahang Aqueous 70.5 ± 5.22d 44.6 ± 2.41d 6.11 ± 0.68c
  Ethanol 58.6 ± 3.81f 59.5 ± 3.17b 5.20 ± 0.70c
Johor Aqueous 62.1 ± 4.79e 52.9 ± 2.88c 5.57 ± 0.63c
  Ethanol 40.0 ± 3.33g 139.8 ± 4.52a 4.06 ± 0.51d
BHT   92.0 ± 4.91b 19.7 ± 0.87g 6.05 ± 0.55c
α-tocopherol   98.6 ± 4.57a 12.6 ± 0.81h 7.78 ± 0.89a
  1. All analyses are the mean of triplicate measurements ± standard deviation. Means not sharing a common letter in each column were significantly different at P ≤ 0.05