Table 1.
Differential pattern of different phenolic compounds identified in water extracts of rosemary and green tea as detected by HPLC
| Phenolic compounds | Rosemary extract (ppm) | Green tea extract (ppm) |
|---|---|---|
| Gallic acid | 86.07 | 57.43 |
| Pyrogallol | 955.40 | 7745.85 |
| 3-hydroxytyrosol | 142.29 | 480.98 |
| Protocatechuic acid | 203.69 | 171.95 |
| Catechins | 731.80 | 1142.82 |
| Catechol | 1846.47 | 400.45 |
| P-hydroxybenzoic | 540.57 | 549.48 |
| Caffeine | 692.73 | 65.80 |
| Vanillic acid | 1269.73 | 321.09 |
| P-coumaric acid | 125.96 | 47.42 |
| Ferulic acid | 223.04 | 29.35 |
| Iso-ferulic acid | 99.48 | 16.66 |
| Alpha-coumaric | 34.31 | 5.85 |
| Ellagic acid | 1729.22 | 1583.35 |
| Coumarin | 105.49 | 21.13 |
| 3,4,5-methoxycinnamic acid | 1663.55 | 30.86 |
| Cinnamic acid | 28.29 | 4.44 |
| Rosmarinic acid | 2664.52 | – |