Table 4.
Ferric reducing/antioxidant power (FRAP) assay (μmol Fe (II)/g fresh weight).
| Solvent | Seed Cakes | ||
|---|---|---|---|
| Hemp | Flax | Canola | |
| Methanol | 1.11 ± 0.02 eB | 0.60 ± 0.01 eC | 3.46 ± 0.03 cdA |
| Ethanol | 1.03 ± 0.05 eB | 0.51 ± 0.01 fC | 2.45 ± 0.04 dA |
| Hexane | 0.07 ± 0.02 fB | 0.03 ± 0.00 gC | 1.20 ± 0.02 dA |
| Acetone | 2.09 ± 0.05 dB | 0.64 ± 0.01 dC | 5.15 ± 2.36 bcA |
| Acetone 80% | 3.19 ± 0.03 bB | 1.10 ± 0.01 bC | 8.15 ± 0.06 aA |
| Methanol 80% | 2.41 ± 0.08 cAB | 0.93 ± 0.02 cC | 7.18± 0.18 abA |
| Methanol:acetone:water (7:7:6 v/v/v) | 3.51 ± 0.04 aB | 1.48 ± 0.00 aC | 8.78 ± 0.07 aA |
Results are expressed as mean ± standard deviations; n = 3. a–g Means in the same column followed by different lowercase letters are significantly different (P < 0.05). A–C Means in the same row followed by different uppercase letters are significantly different (P < 0.05).