Table 2. Response surface models for the influence of pH value and temperature on the enzymatic degradation of GLS in different Brassicaceae species.
| Brassica rapa 215 | Brassica rapa 374 | Brassica oleracea var. italica BroccoCress® | Arabidopsis thaliana Hi-0 | Arabidopsis thaliana Bur-0 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Degradation product | 3But-ITC | 3But-CN | CETB | 3But-ITC | 3But-CN | CETB | 4MSOB-CN | 4MSOB-ITC | 2Prop-ITC | 2Prop-CN | CETP | 2Prop-CN | 3But-CN |
| Model | quadratic | reduced quadratic | reduced quadratic | reduced quadratic | reduced quadratic | quadratic | reduced quadratic | reduced quadratic | reduced quadratic | reduced quadratic | 2FI model | reduced quadratic | linear |
| Transformation | square root | square root | natural log | natural log | natural log | inverse | natural log | ||||||
| Model | **** | **** | **** | 0* | ** | * | **** | **** | **** | **** | **** | **** | **** |
| Intercept | +2.97 | +1.45 | +82.85 | +31.27 | +1.70 | +64.06 | +42.47 | +57.53 | +69.70 | +3.32 | −1.81 | 0.38 | 8.18 |
| A-pH | +9.74**** | −52.90* | +39.680* | +1.45* | −48.51* | +126.86**** | −126.86**** | +58.83**** | −2.59**** | −4.08**** | −9.49**** | ||
| B-T | −1.86*** | +1.94* | −17.14* | +16.38* | +22.63**** | −22.63**** | +5.70** | −0.28*** | −0.28* | −0.16**** | +5.42**** | ||
| AB | +5.95*** | −49.15* | −1.82** | +23.72n.s | +19.02** | −1.01*** | −2.70**** | ||||||
| A2 | +40.57**** | +23.45**** | −440.11**** | +183.07* | +6.42 ** | −237.72** | +335.53**** | −335.53**** | +192.48**** | −7.89**** | −1.09**** | ||
| B2 | −2.78 ** | +3.55* | −27.610* | +23.490* | −0.11*** | ||||||||
| Lack of Fit | n.s. | n.s. | n.s. | n.s. | n.s. | n.s. | n.s. | n.s. | n.s. | n.s. | n.s. | n.s. | n.s. |
Asterisks indicate the level of significance: *p ≤ 0.1; *p ≤ 0.05; **p ≤ 0.01; ***p ≤ 0.001; ****p ≤ 0.0001; n.s. not significant (p ≥ 0.05). Abbreviations are according to the list of abbreviations.