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Table 3 Metal chelating activity (MCA), ferric reducing-antioxidant power (FRAP), free radical scavenging capacities, total phenolic content, and total flavonoid content of different extracts of Jatu-Phala-Tiga

From: Traditional tonifying polyherbal infusion, Jatu-Phala-Tiga, exerts antioxidant activities and extends lifespan of Caenorhabditis elegans

Extracting solvents MCA assay* (IC50; mg/mL) FRAP assay (mM FeSO4/mg) Radical scavenging properties** (IC50; mg/mL) Total contents of (mg equivalence/g of extract)
DPPH ABTS Phenolics Flavonoids
Ethyl acetate 48.62 ± 8.57b 14.22 ± 0.16b 0.99 ± 0.04c 0.59 ± 0.01c 350.20 ± 10.23b 78.25 ± 7.91a
Ethanol 216.09 ± 8.78c 23.07 ± 1.84a 0.41 ± 0.04b 0.27 ± 0.01a 457.81 ± 13.24a 68.06 ± 1.65ab
Water 1.75 ± 0.05a 16.81 ± 0.46b 0.31 ± 0.02a 0.31 ± 0.00b 253.01 ± 5.45c 64.92 ± 3.65b
  1. *IC50 of EDTA (a positive control) was 0.021 ± 0.00 mg/mL
  2. **IC50 of trolox obtained from DPPH and ABTS assays were 0.143 and 0.533 mg/mL, respectively
  3. a-cValues in the same column with different superscripts are significantly different (p < 0.05)