Table 4 Optimum conditions, and the predicted and experimental values of response
Ultrasonic power (W) | Extraction time (min) | Extraction temperature (°C) | Yield of polysaccharides (%) | Hydroxyl radical scavenging activity of polysaccharides (%) | |
|---|---|---|---|---|---|
Optimum condition for yield (predicted) | 120 | 15 | 54.69 | 4.59 | 32.75 |
Modified condition for yield (actual) | 120 | 15 | 55 | 4.47 | 30.94 |
Optimum condition for activity (predicted) | 80 | 14.91 | 40 | 3.07 | 68.91 |
Modified condition for activity (actual) | 80 | 15 | 40 | 2.91 | 67.30 |