Table 3 HPLC characteristics for the Catechin and Caffeic Acid content for the methanolic leaf extracts of the Catharanthus roseus plants (test samples)
Samples | Stock | Retention time (min) | Area (mv*S) | Catechin Content ug/ ml of extract | Dilution factor | Catechin Content mg/ g of extract |
|---|---|---|---|---|---|---|
Catechin (ug/ ml) | 100 | 2.437 | 365.026 | – | – | – |
Sample (C. roseus) (mg/ ml) | 10 | 2.310 | 20.130 | 5.51 | 1 | 0.0055 |
Caffeic acid (ug/ ml) | 100 | 1.897 | 629.931 | – | – | – |
Sample (C. roseus) (mg/ ml) | 10 | 1.807 | 54.240 | 14.86 | 1 | 0.0149 |