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Table 2 Total polyphenolic content (mg/g) and the results of antioxidant activities

From: Sources for developing new medicinal products: biochemical investigations on alcoholic extracts obtained from aerial parts of some Romanian Amaryllidaceae species

Samples TPC mg GAE/g Flavonoids mg RE/g DPPH IC50 μg Trolox/mL FRAP μM Trolox /100 mL HAPX (100)
N. pseudonarcissus 19.74 ± 0.25a 4.92 ± 0.17c >  200 220 ± 10e 11 ± 4
N. poeticus 15.25 ± 0.06b 2.47 ± 0.12c >  200 274 ± 5e ND*
G. nivalis 24.57 ± 1.42 12.56 ± 1.43 139.88 ± 5.11e 725 ± 18e 35 ± 12
L. vernum 16.49 ± 0.50b 7.10 ± 0.09d >  200 238 ± 7e ND*
Trolox 11.20 ± 0.20 2073.91 ± 26.08
  1. Notes: Each value is the mean ± SD of three independent measurements
  2. GAE gallic acid equivalent, RE rutin equivalent, Npn Narcissus pseudonarcissus, Np N. poeticus, Gn Galanthus nivalis, Lv Leucojum vernum
  3. ap < 0.05 (Gn versus Npn)
  4. bp < 0.001 (Gn versus Np, Gn versus Lv)
  5. cp < 0.001 (Gn versus Npn, Gn versus Np)
  6. dp < 0.05 (Gn versus Lv)
  7. ep < 0.001 (all samples versus Trolox); *ND – has not statistically significant effect