Table 4.
HPLC-PDA polyphenolic quantification of the tested M. buxifolia leaves and stem extracts (μg/mg)
| Polyphenoilic compounds | Leaves | Stem | ||
|---|---|---|---|---|
| Methanol | Chloroform | Methanol | Chloroform | |
| Gallic acid | nd | Nd | nd | BLQ |
| Catechin | 4.29 ± 0.52 | Nd | 7.75 ± 0.84 | 3.95 ± 0.86 |
| Vanillic acid | nd | BLQ | nd | nd |
| Epicatechin | 0.59 ± 0.05 | 0.89 ± 0.08 | 1.29 ± 0.95 | 0.82 ± 0.08 |
| 3-OH benzoic acid | nd | Nd | nd | 0.79 ± 0.09 |
| Rutin | 0.74 ± 0.08 | 13.7 ± 1.54 | 0.45 ± 0.04 | nd |
| Naringin | 0.27 ± 0.03 | Nd | nd | nd |
Values are means SD of three measurements; BLD: below limit of detection < 0.1 μg/mL; BLQ: below limit of quantification < 0.2 μg/mL; nd: not detected
Chlorogenic acid, p-OH benzoic acid, Syringic acid, 3-OH-4-MeO benzaldehyde, p-coumaric acid, Sinapinic acid, t-ferullic acid, 2.3-diMeO benzoic acid, Benzoic acid, o-coumaric acid, Quercetin, Harpagoside, t-cinnamic acid, Naringenin, and Carvacrol were not detected in any of the tested extracts