Table 2.
Proposed phytochemical constituents in the GZ methanol extract using LC-MS.
| Peak No. | Rt (min) | [M + H]+ (m/z) | Area (%) | Proposed compound | Theoretical mass | Mass error (ppm) |
|---|---|---|---|---|---|---|
| 11 | 1.8 | 116.0723 | 13.9908 | L-Proline | 115.0633 | 5 |
| 15 | 2.1 | 242.1015 | 4.68035 | Resveratrol 4′-methyl ether | 219.1107 | 6 |
| 17 | 2.3 | 193.0700 | 1.34899 | Quinic acid | 192.0634 | 3 |
| 29 | 6.4 | 171.0290 | 1.72094 | Gallic acid | 170.0215 | 1 |
| 41 | 8.7 | 449.1092 | 3.81108 | Quercitrin or Kaempferol 3-alpha/beta-D-galactoside or Kaempferol 3-alpha/beta-D-glucoside | 448.1006 | 3 |
| 47 | 9.1 | 447.1272 | 1.73585 | Ginkgolide B | 424.1383 | 2 |
| 48 | 9.1 | 447.1294 | 3.08348 | Glycitin | 446.1213 | 1 |
| 74 | 13.4 | 290.8464 | 18.7542 | Catechin | 290.0790 | 1 |
Database: METLIN (CA, USA) and KNApSAcK Keyword Search Web Version 1.000.01.