Table 2.
Chemical parameters of acacia honey before and after centrifuging and filtration
| Sample 1 | Sample 2 | Sample 3 | ||||
|---|---|---|---|---|---|---|
| Before | After | Before | After | Before | After | |
| Proline content (mg/kg) | 374 ± 3.6 | 284 ± 3.0 | 287 ± 4 | 218 ± 3 | 229 ± 1 | 189 ± 2 |
| TPC (mgGAE/100 g) | 32.3 ± 0.1 | 20.5 ± 0.1 | 24.9 ± 0.3 | 14.8 ± 0.2 | 25.1 ± 0.1 | 14.9 ± 0.1 |
| EC (µS/cm) | 312 ± 1 | 224 ± 4 | 231 ± 3 | 157 ± 3 | 234 ± 4 | 153 ± 2 |
| Colour (mm) | 33.0 ± 1.0 | 12.0 ± 1 | 28.0 ± 1.5 | 17.0 ± 1.5 | 27.0 ± 1.0 | 12.0 ± 1 |
| Moisture (%) | 16.0 ± 0.01 | 16.5 ± 0.02 | 16.7 ± 0.1 | 18.4 ± 0.1 | 16.0 ± 0.1 | 17.5 ± 0.1 |
| As (µg/kg) | 22.7 ± 0.1 | 20.9 ± 1.0 | 11.0 ± 0.2 | 10.8 ± 0.5 | 13.6 ± 0.2 | 13.4 ± 0.5 |
| B (mg/kg) | 11.3 ± 0.1 | 5.39 ± 0.0 | 3.59 ± 0.02 | 2.94 ± 0.0 | 3.63 ± 0.16 | 2.85 ± 0.19 |
| Cd (µg/kg) | < LOD | < LOD | < LOD | < LOD | < LOD | < LOD |
| Cr (µg/kg) | 4.79 ± 0.02 | < LOD | < LOD | < LOD | < LOD | < LOD |
| Fe (µg/kg) | 774 ± 2 | 590 ± 2 | 598 ± 8 | 503 ± 9 | 749 ± 15 | 627 ± 7 |
| K (mg/kg) | 523 ± 1 | 367 ± 2 | 359 ± 1.7 | 221 ± 1.7 | 372 ± 1 | 208 ± 1 |
| Mg (mg/kg) | 8.14 ± 0.45 | 6.56 ± 0.15 | 4.42 ± 0.20 | 1.81 ± 0.13 | 5.61 ± 0.09 | 1.37 ± 0.22 |
| Na (mg/kg) | 13.8 ± 1.5 | 4.74 ± 0.11 | 12.3 ± 0.1 | 3.43 ± 0.02 | 9.85 ± 0.04 | 2.36 ± 0.05 |
| P (mg/kg) | 55.9 ± 1.2 | 37.6 ± 1.3 | 61.2 ± 0.85 | 46.3 ± 0.2 | 72.5 ± 0.4 | 44.7 ± 1.2 |
| S (mg/kg) | 34.2 ± 0.8 | 26.8 ± 1.4 | 32.8 ± 0.6 | 23.3 ± 0.6 | 31.6 ± 1.3 | 22.7 ± 1.4 |
| Zn (µg/kg) | 1014 ± 11 | 783 ± 9 | 723 ± 11 | 448 ± 5 | 891 ± 3 | 575 ± 7 |
LOD limit of detection