Table 1.
HPLC Profile of Phytochemical Compounds Detected in the Crude Extract of Mentha piperita (Mp.Cr) and Standard Marker Phytochemical Compounds.
| Sr No | Phytochemical Compounds | Retention Time of Compounds Detected in Mp.Cr (min) | Retention Time of Standard Compounds (min) |
|---|---|---|---|
| 1 | Chlorogenic acid | 1.63 | 1.63 |
| 2 | Caffeic acid | 1.85 | 1.85 |
| 3 | vanillic acid | 2.27 | 2.27 |
| 4 | p-Coumaric acid | 2.41 | 2.41 |
| 5 | Epicatechin | 2.58 | 2.58 |
| 6 | Hydroxycinnamic acid | — | 2.80 |
| 7 | Gallic acid | 3.92 | 3.92 |
| 8 | Quinic acid | — | 3.98 |
| 9 | Apigenin | — | 6.47 |
| 10 | Hispidulin | — | 9.12 |
| 11 | Vitexin | 14.96 | 14.96 |
| 12 | Quercetin-3-O-rutinoside (Rutin) | — | 17.18 |
| 13 | Quercetin | 19.00 | 19.00 |
| 14 | Kaempferol-3-O-rutinoside | — | 20.34 |
| 15 | Hydroxyphenylacetic acid | — | 21.26 |
| 16 | Catechin | — | 22.01 |
| 17 | Isorhamnetin-3-O-glucoside | — | 23.18 |
| 18 | Myricetin | — | 23.83 |
| 19 | Luteolin | — | 25.16 |
| 20 | Apigenin | — | 25.99 |
| 21 | Rhamnetin | — | 26.67 |
| 22 | Epigallocatechin | 27.03 | 27.03 |
| 23 | Sinapic acid | 27.35 | 27.35 |
| 24 | Kaempferol | 27.99 | 27.99 |
| 25 | Butylated hydroxytoluene (BHT) | — | 29.02 |
| 26 | Quercetin-rhamno-di-hexoside | 29.76 | 29.76 |
| 27 | Syringic acid | 30.14 | 30.14 |
| 28 | Hyperoside | — | 31.49 |
| 29 | Naringenin | — | 32.76 |
| 30 | Quercetin-3-O-glucopyranoside | 33.03 | 33.03 |
| 31 | Trans-ferulic acid | — | 34.39 |