Table 1.
Profiles and quantification of flavonoids in the plant samples.
| Samples | Flavonoids (mg/100 g DW) | ||||||
|---|---|---|---|---|---|---|---|
| Quercetin | Kaempferol | Hesperidin | Luteolin | Apigenin | Delphinidin | Cyanidin | |
| A. cepa | 63.34 ± 1.01 b | ND | ND | ND | ND | ND | 13.35 ± 1.07 |
| A. fistulosum | ND | 47.97 ± 0.97 a | ND | ND | ND | ND | ND |
| A. sativum | ND | ND | ND | ND | ND | ND | ND |
| Ci. hystrix | 25.52 ± 0.36 c | ND | 453.47 ± 2.28 | ND | ND | ND | ND |
| Co. sativum | 166.16 ± 1.20 a | 4.44 ± 0.03 c | ND | ND | ND | ND | ND |
| Cy. citratus | ND | ND | ND | 4.57 ± 0.10 | ND | ND | ND |
| E. foetidum | ND | 22.09 ± 2.91 b | ND | ND | ND | ND | ND |
| P. tetragonolobus | ND | ND | ND | ND | ND | 15.77 ± 0.59 | 43.02 ± 0.87 * |
| Se. pennata | ND | ND | ND | ND | 3.46 ± 0.10 | ND | ND |
| So. melongena | ND | ND | ND | ND | ND | ND | ND |
All data were expressed as mean ± standard deviation (SD) of triplicate experiments (n = 3). Small letters indicate significantly different contents of the same phenolic in different vegetable extracts (more than two samples) at p < 0.05 calculated by one–way analysis of variance (ANOVA) and Duncan’s multiple comparison test, while asterisk (*) indicates significantly different contents of the same phenolic in different vegetable extracts (two samples) at p < 0.05 calculated by Student’s t-test. ND: not detected.