Table 1 Extraction rate constant, initial extraction rate and equilibrium concentration for different process conditions of ultrasonic extraction
| Ultrasonic processing (W) | Initial extraction rate, h (mg mL− 1 min− 1) | Equilibrium concentration of collagen, Ce (mg mL)− 1 | Extraction rate constant, k (mL mg− 1 min − 1) |
|---|---|---|---|
| 0 | 29.77 | 4.97 | 0.66 |
| 50 | 45.04 | 5.42 | 0.84 |
| 100 | 61.79 | 5.85 | 0.99 |
| 150 | 92.38 | 6.49 | 1.20 |
| 200 | 51.67 | 4.43 | 1.44 |