Table 6.
Pearson correlation coefficient for mineral content, phenolic compounds, and antioxidant activities of spider plant.
| N | Ca | Mg | P | Al | Cu | Fe | Mn | Zn | QC | Q3R | Q3βDG | TPC | DPPH | FRAP | TFC | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| N | 1.00 | |||||||||||||||
| Ca | 0.72 ** | 1.00 | ||||||||||||||
| Mg | 0.58 * | 0.74 ** | 1.00 | |||||||||||||
| P | 0.53 * | 0.57 * | 0.69 * | 1.00 | ||||||||||||
| Al | 0.29 | 0.56 * | 0.45 | 0.39 | 1.00 | |||||||||||
| Cu | 0.46 * | 0.41 | 0.64 * | 0.68 * | 0.08 | 1.00 | ||||||||||
| Fe | 0.41 | 0.60 * | 0.56 * | 0.58 * | 0.87 ** | 0.43 | 1.00 | |||||||||
| Mn | 0.22 | 0.20 | 0.19 | 0.07 | 0.55 * | −0.03 | 0.45 * | 1.00 | ||||||||
| Zn | 0.47 * | 0.38 | 0.59 * | 0.54 * | −0.17 | 0.74 ** | 0.05 | −0.16 | 1.00 | |||||||
| QC | 0.12 | −0.26 | 0.06 | −0.13 | −0.22 | −0.09 | −0.29 | 0.10 | 0.08 | 1.00 | ||||||
| Q3R | 0.12 | −0.16 | 0.27 | 0.02 | −0.14 | 0.01 | −0.19 | 0.21 | 0.22 | 0.82 ** | 1.00 | |||||
| Q3βDG | 0.23 | −0.09 | 0.14 | −0.30 | −0.30 | −0.01 | −0.35 | 0.08 | 0.26 | 0.84 ** | 0.64 * | 1.00 | ||||
| TPC | −0.22 | 0.01 | 0.17 | 0.32 | −0.15 | 0.22 | −0.13 | −0.36 | 0.25 | −0.02 | −0.06 | −0.13 | 1.00 | |||
| DPPH | 0.18 | 0.14 | 0.03 | 0.04 | −0.29 | −0.03 | −0.17 | 0.00 | −0.01 | 0.06 | −0.06 | 0.07 | 0.21 | 1.00 | ||
| FRAP | 0.11 | −0.05 | −0.15 | −0.08 | −0.34 | −0.11 | −0.28 | −0.14 | 0.02 | 0.37 | 0.03 | 0.20 | 0.26 | 0.62 * | 1.00 | |
| TFC | −0.13 | −0.04 | −0.14 | −0.40 | −0.25 | −0.27 | −0.39 | −0.36 | −0.03 | 0.33 | −0.05 | 0.43 * | 0.48 * | 0.21 | 0.59 * | 1.00 |
**, * = significant at the 1% and 5% probability level respectively. QC = quercetin; Q3R = quercetin-3-rutinoside; Q3βDG = quercetin-3-β-D-glucoside; TPC = total phenolic content; TFC = total flavonoid content; DPPH = 2,2-diphenyl-1-picrylhydrazyl free radical scavenging activity and FRAP = ferric-reducing antioxidant power assay.