Table 2.
Statistically significant (P < 0.05) values (means ± standard errors) of the parameters in the overall modified Michaelis-Menten models (5), (6), and (7) for the enzymatic reactions of the three amylolytic enzymes in unaged starch and in starches aged for different times (24 h, 48 h, and 100 h). The mean values within rows followed by the same letter are not significantly different (P < 0.05) from each other. SEE: Standard error of estimate of the model.
| Termamyl | |||
|---|---|---|---|
| Parameters | Model (5) | Model (6) | Model (7) |
|
| |||
| v max | 37.2 ± 1.39a | 37.8 ± 1.28a | 37.8 ± 1.28a |
| K M | 35.7 ± 4.41a | 35.7 ± 6.18a | 35.6 ± 5.70a |
| K t | 0.003 ± 0.0010 | 0.004 ± 0.0011 | 189.93 ± 46.14 |
| R 2 | 0.9881 | 0.9901 | 0.9914 |
| RPDM | 9.18 | 8.83 | 8.53 |
| SEE | 1.11 | 1.06 | 1.00 |
|
| |||
| San Super | |||
|
| |||
| Parameters | Model (5) | Model (6) | Model (7) |
|
| |||
| v max | 33.9 ± 0.94a | 34.4 ± 0.94a | 35.0 ± 1.06a |
| K M | 35.7 ± 3.18a | 35.7 ± 6.42a | 35.6 ± 9.46a |
| K t | 0.005 ± 0.0010 | 0.007 ± 0.0011 | 101.51 ± 18.15 |
| R 2 | 0.9944 | 0.9922 | 0.9866 |
| RPDM | 6.42 | 6.74 | 8.51 |
| SEE | 0.67 | 0.78 | 1.05 |
|
| |||
| BAN | |||
|
| |||
| Parameters | Model (5) | Model (6) | Model (7) |
|
| |||
| v max | 71.1 ± 3.44a | 71.7 ± 1.89a | 72.5 ± 1.89a |
| K M | 51.2 ± 7.07a | 51.2 ± 3.86a | 51.2 ± 6.68a |
| K t | 0.003 ± 0.0007 | 0.004 ± 0.0008 | 191.87 ± 37.55 |
| R 2 | 0.9938 | 0.9946 | 0.9948 |
| RPDM | 8.40 | 8.22 | 8.21 |
| SEE | 1.44 | 1.33 | 1.39 |