Table 2.
Chemical characterization of methanolic extract from grape pomace.
| m/z | Retention Time (min) | Metabolite | Fragments |
|---|---|---|---|
| 178.9 | 2.1–3.3 | Caffeic acid | 58.7/70.6/89/85.1 |
| 289.1 | 30.5–30.9 | Catechin/Epicatechin | 109/124.8/203.1/151.1/245.2/123/161.1205.1/137/221.2/289/179/108.9/124.8/203.1/122.8/150.9/204.7/245.3/289 |
| 168.8 | 11–12.3 22.43 |
Gallic acid | 125/168.6/79.1/80/96.8/107.1/125/169.1/78.8/ 97.2/106.9 |
| 577.1 | 28.6–29.8/32–33.2/33.4–33.8/34.7–38.4/42.8–43 | Procyanidin | 407.3/289.1/425.2/125/450.8/577 |
| 191 | 2.5–5.6 | Quinic acid | 110.8/72.7/85.1/58.8/98.9/117/111/86.8/85 |
| 195 | 1.3–2.5 5.6 |
Unknown | 74.7/98.8/86.9/85.1/58.7/70.7/89/128.9/194.8 |
| 224.9 | 2.1–2.8/15.7 | Unknown | 89.1/58.7/70.6/112.8/100.9/85.1/118.8 |
| 161.1 | 2.2–2.5/19.5–20.1 | Unknown | 70.6/85/72.6/58.8/94.9/100.8/56.7/83.1/113.1 |
| 253.1 | 2.2–4.2 | Unknown | 88.8/72.7/70.6/87.2/113/119.2/100.7 |
| 439.1 | 2.4 | Unknown | 97.1/78.9/161.1/178.6 |
| 331 | 21.8–22.6 | Unknown | 169.1/125/331/168.1/124.9/313.1 |
| 293.1 | 269–27.1/27.7–27.8 | Unknown | 130.9/89/118.6/293.1/100.9/112.8/85.1 |
| 579.2 | 29-29.7/32.2–33.1/33.4–33.8/34.8-35.1 | Unknown | 289.1/245.2/579.2/ 426.8/409.4/453.2/288.8 |
| 441.1 | 42.2–42.5 | Unknown | 169/389.1/125/271.2/441.2 |
| 477 | 43.7–44 | Unknown | 301.2/476.8/113.1/175 |
| 463 | 43-43.1/43.3–43.6 | Unknown | 463.2/301.2/178.9/343.1/150.6 463.3/300.2/300.8/178.9/343 |
| 493.3 | 49.7/50.1–50.2/50.3-50.6 | Unknown | 315.2/447.4/161.1/131/493.3/447/160.7/314.9/447.4/315.1/130.6/161.2/118.9/179/191.2/447.3/149.2/179.1/131/88.9/118.9/161/191.2/315/251.3/221.1/47.4/149/493.3/179.1/101.2/160.9/89/118.8/130.6/190.7/251.1/221.1 |
| 507.2 | 50.3–50.9 | Unknown | 149.1/292.9/88.9/167.2/233.1/190.6/124.6/100.5/221.1/507.2 |