Table 1.
Content of total phenolic compounds and flavonoids in extracts of C. mexicana leaves obtained by using four different systems of extraction solvents.
| System of extraction solvents | Total phenolics (mg of GAE/ g of dw5) |
Flavonoids (mg of CE/ g of dw6) |
|---|---|---|
| AMWAc1 | 188.76 ± 13.27b | 143.22 ± 5.87b |
| AWAc2 | 174.23 ± 16.6a | 159.57 ± 6.54a |
| EtOH3 | 169.18 ± 3.96a | 153.80 ± 6.45a |
| MeOH4 | 190.42 ± 11.95b | 154.87 ± 5.94a |
1
AMWAc, acetone: methanol: water: acetic acid (40:40:18.5:1.5); 2AMAc, acetone: water: acetic acid (80:18.5:1.5); 3EtOH, ethanol (60% aqueous); 4MeOH, methanol (100%).
5
mg of GAE/ g of dw: milligrams of gallic acid equivalents for grams of dry weight
6
mg of CE/ g of dw: milligrams of catechin equivalents for grams of dry weight
a
and b: values in the same column followed by the same letter are not significantly different (p < 0.05)