Table 1.
Phytochemical constituents and antioxidant activities of M. buxifolia leaves and stem extracts
| Extract | Phytochemical contents | Radical Scavenging Activity | Reducing Power Assays | Ferrous ion Chelation | Total Antioxidant Capacity | ||||
|---|---|---|---|---|---|---|---|---|---|
| Total phenolic content (mgGAE/) | Total flavonoid content (mgRE/g) | DPPH (mmolTE/g) | ABTS (mmol TE/g) | CUPRAC (mgTE/g) | FRAP (mgTE/g) | Metal chelating (mgEDTAE/g) | Phosphomolybdenum (mmolTE/g) | ||
| Leaves | Methanol | 69.84 ± 1.87c | 40.11 ± 0.94b | 132.14 ± 0.68c | 257.25 ± 4.04c | 253.96 ± 5.69c | 197.36 ± 8.05b | 6.24 ± 0.13c | 2.10 ± 0.12b |
| Chloroform | 50.21 ± 0.87d | 48.86 ± 0.75a | 81.62 ± 4.25d | 160.96 ± 4.29d | 182.67 ± 1.85d | 121.52 ± 4.94c | 15.95 ± 1.03a | 2.29 ± 0.22b | |
| Stem | Methanol | 91.00 ± 2.24a | 7.37 ± 0.22c | 145.18 ± 0.25a | 279.04 ± 0.52a | 361.40 ± 11.02a | 247.19 ± 8.49a | 2.90 ± 0.46d | 2.75 ± 0.16a |
| Chloroform | 73.98 ± 2.22b | 7.68 ± 0.16c | 138.51 ± 0.94b | 271.37 ± 0.35b | 267.96 ± 10.33b | 197.57 ± 9.15b | 8.88 ± 0.83b | 2.50 ± 0.23ab | |
All values expressed are means ± S.D. of three parallel measurements. GAE: Gallic acid equivalents; RE: Rutin equivalents; TE: trolox equivalent; EDTAE: EDTA equivalent. Different letters within column indicate significant differences in the extracts (p < 0.05)