Table 3.
MS information and UV absorption from the identified compounds of 50% fraction.
| Peak number | R t (min) | UV λmax (nm) | MS (M − H)− | MS2 | Compound name | Specie |
|---|---|---|---|---|---|---|
| 1 | 23.08 | 253, 348 | 285.07 | 241.08, 179.04 | Luteolin | Flavonoids |
| 2 | 24.07 | 253, 364 | 315.04 | 300.02 | Isorhamnetin | Flavonols |
| 3 | 26.26 | 337 | 269.04 | 225.05, 181.06, 151.00 | Apigenin | Flavonoids |
| 4 | 26.93 | 280 | 271.06 | 197.59,125.02 | Pinobanksin | Dihydroflavone |
| 5 | 29.73 | 300 | 329.06 | 268.61, 240.05, 177.01 | 5-Methoxy pinobanksin-3-O-acetate | Dihydroflavone |
| 6 | 33.76 | 311 | 315.05 | 299.82 | 3-Methoxy quercetin | Flavonols |
| 7 | 35.72 | / | 329.06 | 314.04 | 5.7-Dimethoxy quercetin | Flavonols |
| 8 | 38.33 | 267, 313 | 253.05 | 209.06, 143.05, 107.02 | Chrysin | Flavonoids |
| 9 | 39.61 | 289 | 255.06 | 213.05, 150.99, 107.01 | Pinocembrin | Flavonoids |
| 10 | 40.07 | 265, 310 | 269.04 | 169.06, 197.04, 212.39 | Galangin | Flavonoids |
| 11 | 41.18 | 294 | 313.07 | 253.05, 271.09 | 3-Acetate-pinobanksin | Dihydroflavonol |
| 12 | 42.20 | 265 | 283.06 | 268.03, 239.03, 211.04 | 5-Methoxy alpinin | Flavonols |