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Table 5 Antioxidant activities of six individual phenol standards

From: Screening for antioxidant and antibacterial activities of phenolics from Golden Delicious apple pomace

Individual phenols FRAP DRSC HORAC ORAC Concentration (mg/ml)
Procyanidin B2 0.10 ± 0.01c 0.25 ± 0.03c 0.79 ± 0.05c 1.23 ± 0.05c 1.38 ± 0.02
Phloridzin 0.62 ± 0.05bD 0.89 ± 0.05bC 1.16 ± 0.08bB 2.01 ± 0.07abA 8.63 ± 0.05
Hyperin 0.08 ± 0.01d 0.15 ± 0.02d 0.37 ± 0.02d 0.78 ± 0.02d 1.07 ± 0.01
Quercetin-3-pentoside 0.06 ± 0.01e 0.13 ± 0.01e 0.32 ± 0.02d 0.75 ± 0.03d 1.06 ± 0.01
Quercetin-3-rhamnoside 0.07 ± 0.01de 0.14 ± 0.01de 0.35 ± 0.01d 0.73 ± 0.04d 1.14 ± 0.02
Phloretin 1.88 ± 0.07aB 1.27 ± 0.08aC 1.86 ± 0.06aB 2.58 ± 0.10aA 7.75 ± 0.04
  1. Values are expressed as the mean ± standard deviation (n = 3)
  2. FRAP ferric reducing power expressed as milligram BHT equivalents per milliliter of ethyl acetate extract (mg BHT/ml ethyl acetate extract), DRSC DPPH radical scavenging capacity expressed as milligram BHT equivalents per milliliter of ethyl acetate extract (mg BHT/ml ethyl acetate extract), HORAC hydroxyl radical averting capacity expressed as milligram BHT equivalents per milliliter of ethyl acetate extract (mg BHT/ml ethyl acetate extract), ORAC oxygen radical absorbance capacity expressed as milligram BHT equivalents per milliliter of ethyl acetate extract (mg BHT/ml ethyl acetate extract)
  3. a–eColumn wise values with different superscripts of this type denote significant differences (P < 0.05)
  4. A–DLine wise values with different superscripts of this type denote significant differences (P < 0.05)