Research Article
Evaluation of a Propolis Water Extract Using a Reliable RP-HPLC Methodology and In Vitro and In Vivo Efficacy and Safety Characterisation
Table 3
Precision results for propolis water extract (PWE) and propolis ethanolic extract (PEE).
|
Sample |
Chemical marker | Intraday repeatability () | Interday repeatability () | test | Average quantity (mg/mL) | RSD | VAR | Average quantity (mg/mL) | RSD | VAR |
| | Caffeic acid | 0.342 | 8.25 | 0.00080 | 0.362 | 6.44 | 0.00054 | 0.68 | | p-coumaric acid | 1.078 | 0.44 | 0.00002 | 1.075 | 1.00 | 0.00012 | 5.08 | PWE | trans-cinnamic acid | 0.078 | 2.18 | 0.00000 | 0.077 | 0.61 | 0.00000 | 0.50 | | Aromadendrin | 0.097 | 3.38 | 0.00001 | 0.097 | 2.48 | 0.00001 | 1.88 | | Artepillin C | 4.393 | 1.98 | 0.00758 | 5.450 | 1.43 | 0.00603 | 1.26 |
| | Caffeic acid | 0.267 | 1.48 | 0.00002 | 0.276 | 0.36 | 0.00000 | 0.06 | | p-coumaric acid | 1.418 | 0.72 | 0.00010 | 1.433 | 0.46 | 0.00004 | 0.42 | PEE | trans-cinnamic acid | 0.160 | 2.84 | 0.00002 | 0.152 | 0.91 | 0.00000 | 0.16 | | Aromadendrin | 0.772 | 0.97 | 0.00006 | 0.810 | 1.38 | 0.00013 | 0.45 | | Artepillin C | 5.480 | 3.01 | 0.02727 | 5.135 | 1.77 | 0.00828 | 3.29 |
|
|
RSD: relative standard deviation. VAR: variance.
|