Table 3 HPLC fractions of phenol content of V. geminata, P. pyrenoidosa, B. eriensis, and S. obliquus
Phenols | Chemical structure | V. geminata | P. pyrenoidosa | B. eriensis | S. obliquus | Retention time |
|---|---|---|---|---|---|---|
Gallic | Benzoic derivative | 3.40 | 4.11 | 3.62 | 3.44 | 1.9 |
Resorcinol | Benzoic derivative | 3.66 | 4.73 | 3.95 | ND | 2.5 |
Chlorogenic | Cinnamic derivative | 2.91 | 3.42 | 1.90 | 3.09 | 3 |
Caffeic | Cinnamic derivative | 3.35 | 3.94 | 4.22 | 3.42 | 3.4 |
Coumaric | Cinnamic derivative | 4.52 | 4.45 | ND | 2.25 | 4.2 |
Ferulic | Cinnamic derivative | 4.02 | 3.30 | 3.11 | 3.21 | 5.1 |
Syringic | Benzoic derivative | 2.11 | 2.28 | ND | 1.33 | 8 |