Table 1.
List of peaks observed in the DPPH• chromatograms and the masses of those peaks as determined from the MS data and possible identification based on the MS data. Where two significant masses were observed in the MS data, the first mass listed is the most abundant mass.
| DPPH Peak-Retention Time (min) | Positive Scan m/z | Negative Scan m/z | Possible Identification |
|---|---|---|---|
| Lemon Myrtle H2O Extract | |||
| 0.2 | 176.76 | 132.69 | Gallocatechin, Epigallocatechin, Taxifolin |
| 1.5 | 187.73 | 304.94 | Cyanidin 3-rutinoside |
| 2.3 | No peak | 593.26, 394.93 | Cyanidin 3-rutinoside |
| 2.7 | No peak | 593.22 | Hydroxybenzoic acids, Epicatechin, Gallocatechin, Taxifolin |
| 2.9 | 138.71, 306.83 | 304.87 | |
| 3.1 | No peak | 935.25, 467.17 | |
| 3.3 | No peak | 865.33 | |
| 3.6 | No peak | 577.27, 407.04 | Procyanidin B1, Procyanidin B2 |
| 4.3 | 290.78, 138.80 | 288.89 | Catechin, Epicatechin, hydroxybenzoic acids |
| 4.6 | No peak | 865.31 | |
| 6.9 | No peak | 463.11 | Hyperoside |
| Cinnamon Myrtle H2O Extract | |||
| 0.4 | 172.81 | 172.75 | |
| 0.5 | 79.91 | No peak | |
| 0.9 | No peak | No peak | |
| 1.0 | No peak | No peak | |
| 1.3 | No peak | No peak | |
| 1.6 | No peak | 203.87 | |
| 2.0 | No peak | 203.85 | |
| 2.7 | No peak | 164.77 | p-Coumaric acid |
| 3.2 | No peak | 124.83 | |
| 7.6 | No peak | 302.75 | Delphinidin-hexose-pentose, Taxifolin, Quercetin |
| Lemon Myrtle MeOH Extract | |||
| 0.2 | 380.82 | ||
| 2.7 | 290.78, 138.77 | Catechin, Epicatechin, Hydroxybenzoic acids | |
| 2.9 | 138.76, 306.82 | Hydroxybenzoic acids, Epicatechin, Gallocatechin | |
| 4.0 | 290.79 | Catechin, Epicatechin | |
| Cinnamon Myrtle MeOH Extract | |||
| 0.2 | 380.92 | ||
| 0.9 | No peak | ||
| 1.1 | No peak | ||
| 1.5 | No peak | ||
| 2.9 | No peak | ||