Table 2.
Phenolic pattern of Graminex pollen.
| Compound | µg/g of Pollen | Retention Time (min) | Wavelength (nm) |
|---|---|---|---|
| Gallic acid | 89.06 ± 8.25 | 4.99 | 271 |
| Catechin | nd | 13.36 | 278 |
| Chlorogenic acid | 101.77 ± 10.09 | 14.29 | 324 |
| p-OH benzoic acid | nd | 14.71 | 256 |
| Vanillic acid | nd | 17.31 | 260 |
| Epicatechin | nd | 18.30 | 278 |
| Syringic acid | nd | 18.50 | 274 |
| 3-OH benzoic acid | nd | 19.41 | 275 |
| 3-OH-4-MeO benzaldehyde | nd | 22.08 | 278 |
| p-coumaric acid | nd | 22.65 | 310 |
| Rutin | 122.29 ± 11.23 | 25.38 | 256 |
| Sinapinic acid | nd | 26.18 | 324 |
| t-ferulic acid | nd | 27.75 | 315 |
| Naringin | nd | 29.78 | 285 |
| 2,3-diMeO benzoic acid | nd | 30.36 | 299 |
| Benzoic acid | nd | 31.20 | 275 |
| o-coumaric acid | nd | 34.81 | 276 |
| Crocin | nd | 35.52 | 440 |
| Quercetin | 124.42 ± 12.01 | 40.57 | 367 |
| Harpagoside | nd | 45.49 | 280 |
| t-cinnamic acid | nd | 45.87 | 276 |
| Naringenin | nd | 46.74 | 290 |
| Safranal | nd | 47.00 | 330 |
| Carvacrol | 251.88 ± 25.03 | 49.95 | 275 |
| TOTAL | 689.41 ± 52.89 |
Data are reported as mean ± S.D. of three independent measurements. nd: not detected.