Table 1.
Composition of C nepeta extracts in phenolic compounds determined by HPLC-DAD (µg/g).
| No | Phenolic Compounds | RT (Retention Time, (min)) | DCM Extract | AcOEt Extract | BuOH Extract |
|---|---|---|---|---|---|
| 1 | Gallic acid | 5.70 | 3.21 ± 0.35 | 2.88 ± 0.11 | 3.41 ± 0.22 |
| 2 | Protocatechuic acid | 8.85 | - | 8.24 ± 0.25 | 8.83 ± 0.15 |
| 3 | Catechin | 10.68 | - | - | - |
| 4 | Pyrocatechol | 11.04 | - | - | - |
| 5 | Chlorogenic acid | 12.35 | - | 18.79 ± 0.17 | 30.56 ± 0.34 |
| 6 | p-Hydroxy benzoic acid | 12.77 | - | 14.48 ± 0.26 | 16.25 ± 0.13 |
| 7 | 6.7-Dihydroxy coumarin | 14.10 | - | - | - |
| 8 | Vanillic acid | 15.18 | 2.18 ± 0.27 | 5.64 ± 0.10 | 4.83 ± 0.18 |
| 9 | 3- Hydroxy benzoic acid | 15.98 | - | - | - |
| 10 | Syringic acid | 16.56 | - | 1.50 ± 0.12 | 2.33 ± 0.10 |
| 11 | Vanillin | 17.78 | 7.37 ± 0.11 | 1.34 ± 0.10 | 2.27 ± 0.14 |
| 12 | p-Coumaric acid | 20.56 | - | - | - |
| 13 | Taxifolin | 21.26 | - | - | - |
| 14 | Ferulic acid | 22.14 | - | - | - |
| 15 | Coumarin | 24.49 | - | - | 10.45 ± 0.23 |
| 16 | Rutin | 25.30 | - | 5.83 ± 0.18 | 12.20 ± 0.25 |
| 17 | Ellagic acid | 26.11 | - | - | - |
| 18 | Rosmarinic acid | 26.77 | 3.05 ± 0.12 | 25.91 ± 0.22 | 88.51 ± 0.55 |
| 19 | Myricetin | 27.35 | - | 72.58 ± 0.57 | 52.40 ± 0.36 |
| 20 | Quercetin | 30.83 | 6.43 ± 0.20 | 10.33 ± 0.15 | 6.83 ± 0.27 |
| 21 | trans-Cinnamic acid | 31.34 | 4.21 ± 0.35 | 5.28 ± 0.11 | - |
| 22 | Luteolin | 31.70 | 7.54 ± 0.20 | 8.31 ± 0.17 | 5.21 ± 0.12 |
| 23 | Hesperetin | 32.14 | 8.95 ± 0.28 | 9.27 ± 0.10 | 5.57 ± 0.20 |
| 24 | Kaempferol | 33.21 | - | - | 7.40 ± 0.18 |
| 25 | Apigenin | 33.57 | 21.75 ± 0.41 | 12.63 ± 0.24 | 4.84 ± 0.11 |
| 26 | Chrysin | 38.43 | - | - | - |
Values expressed are means ± S.E.M. of three simultaneously measurements (p < 0.05). -: not detected.