Table 3.
Bioactive polyphenolic compounds (μg/g dry extract) of different extract of three vegetables.
| Compounds (μg/g dry extract) | Retention time (minute) | CUME | CUEE | CUWAA | CAME | CAEE | CAWAA | BCME | BCEE | BCWAA |
|---|---|---|---|---|---|---|---|---|---|---|
| Gallic acid | 8.33 | 451 ± 3.26c | 518 ± 6.2b | 881 ± 4.24a | 141 ± 3.5g | 122 ± 1.23h | 112 ± 2.31c | 245 ± 2.5f | 290 ± 2.30e | 320 ± 4.15d |
| Chlorogenic Acid | 13.70 | nd | 502 ± 1.7a | 282 ± 1.24c | nd | 115 ± 1.25d | nd | nd | nd | 331 ± 3.60b |
| Catechol | 19.20 | nd | nd | nd | nd | nd | nd | nd | nd | nd |
| Catechin hydrate | 22.6 | 48 ± 2.51e | 89 ± 1.5d | 113 ± 2.94c | 115 ± 1.5bc | 125 ± 2.5b | 90 ± 2.84d | 440 ± 1.45a | 92 ± 1.20d | 35 ± 1.20f |
| Vanillic acid | 20.10 | 80 ± 3.54b | 540 ± 2.31a | 40 ± 5.1c | nd | 35 ± 3.26d | 20 ± 2.59f | nd | nd | 22 ± 0.50e |
| Caffeic acid | 24.06 | nd | nd | nd | 31 ± 1.45a | nd | 10 ± 1.51b | nd | nd | nd |
| (-) Epicatechin | 29.08 | 158 ± 2.1b | 135 ± 1.36c | 90 ± 1.24e | 210 ± 1.05a | nd | 26 ± 3.20g | 36 ± 1.30f | 29 ± 1.10g | 94 ± 1.05d |
| Vanillin | 31.87 | nd | nd | nd | nd | nd | nd | nd | nd | nd |
| Trans-Ferulic acid | 32.81 | Nd | nd | nd | nd | nd | nd | nd | nd | nd |
| p-Coumaric acid | 31.34 | 58 ± 0.76e | 340 ± 1.59b | 286 ± 1.7c | nd | 380 ± 3.25a | nd | nd | nd | 65 ± 1.1d |
| Rutin Hydrate | 37.28 | 63 ± 1.23c | 350 ± 2.31b | nd | nd | 551 ± 2.12a | nd | nd | nd | 21 ± 0.75d |
| Rosmarinic acid | 29.76 | 122 ± 1.23d | 202 ± 1.24a | 53 ± 0.81f | 150 ± 2.10b | 142 ± 1.50c | 75 ± 3.5e | nd | nd | nd |
| Myricetin | 43.59 | nd | nd | nd | nd | nd | nd | nd | 34 ± 1.20b | 52 ± 0.65a |
| Quercetin | 49.47 | nd | nd | nd | nd | 33 ± 0.90b | nd | nd | 186 ± 1.5a | 22 ± 0.75c |
| trans-Cinnamic acid | 46.05 | nd | nd | nd | nd | nd | nd | nd | nd | nd |
| Naringenin | 52.03 | nd | nd | nd | nd | nd | nd | nd | nd | nd |
| Kaempferol | 53.80 | nd | nd | nd | nd | nd | nd | nd | nd | nd |
Values are mean ± SD, n = 3 (three independent extractions).
Means containing same letter (s) in row did not differ significantly at 5% level of significance.
Where, CAME = Methanol extract of cabbage, CAEE = Ethanol extract of cabbage, CAWAA = water, acetone and acetic acid extract of cabbage, CUME = Methanol extract of cauliflower, CUEE = Ethanol extract of cauliflower, CUWAA = water, acetone and acetic acid extract of cauliflower, BCME = Methanol extract of broccoli, BCEE = Ethanol extract of broccoli, BCWAA = water, acetone and acetic acid extract of broccoli.
nd = not detected.