Research Article
Statistical Analysis of Metal Chelating Activity of Centella asiatica and Erythroxylum cuneatum Using Response Surface Methodology
Table 1
Parameters to be optimized using response surface methodology for CA and EC.
| | CA | EC |
| Temperature (°C) () | 25, 30, 35 | 55, 60, 65 | Speed (rpm) () | 100, 150, 200 | 150, 200, 250 | Ratio (g : mL) () | 1 : 35, 1 : 40, 1 : 45 | 1 : 30, 1 : 35, 1 : 40 | Time (min) () | 30, 60, 90 | 30, 60, 90 |
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