Table 1.
Seed extracts | Pod extracts | |||||
---|---|---|---|---|---|---|
Aqueous | Ethanol | Methanol | Aqueous | Ethanol | Methanol | |
% yield | 3.4 ± 0.01a | 4.5 ± 0.02b | 4.5 ± 0.01 b | 3.7 ± 0.01 b | 3.2 ± 0.03 a | 3.9 ± 0.03 b |
Total phenolics1 | 40.5 ± 1.0e | 28.4 ± 0.2f | 58.9 ± 0.3d | 66.8 ± 1.0c | 96.6 ± 0.1b | 141.7 ± 0.4a |
Antioxidant capacity2 | 64.1 ± 2.0f | 125.6 ± 1.4e | 146.2 ± 2.0d | 152.8 ± 2.2c | 227.8 ± 1.4b | 352.0 ± 2.0a |
FRAP values3 | 0.31±.01e | 0.28 ± 0.01f | 0.65 ± 0.0d | 1.0 ± 0.01c | 1.4 ± 0.0b | 1.4 ± 0.0a |
Total flavonoids4 | 27.7 ± 1.2f | 92.7 ± 3.0b | 86.3 ± 2.1c | 41.3 ± 1.0e | 74.3 ± 1.2d | 126.0 ± 2.0a |
Total flavonols5 | 0.38 ± 0.1e | 9.46 ± 0.2b | 5.9 ± 0.3c | 1.2 ± 0.1d | 6.5 ± 0.3c | 17.1 ± 0.4a |
Total tannins6 | 40.7 ± 2.0e | 55.7 ± 3.0d | 62.7 ± 1.2c | 62.7 ± 1.0c | 94.7 ± 1.0b | 193.3 ± 3.0a |
1 mg Gallic acid equivalent/gm extract; 2 mg Ascorbic acid equivalent /gm of the extract;
3 mM Fe2+/gm extract; 4 mg Catechin equivalent/gm extract; 5 mg Quercetin equivalent/gm extract; 6mg Catechin equivalent/gm extract.
FRAP: Ferric reducing antioxidant potential
Mean values with different alphabets in the row were significantly different (p < 0.05) from each other. Values were the means of three replicates ± standard deviation (SD).