Table 2.
Parameters and figures of merit for the POX and PenV MCR-ALS models.
| Model | Calibration range (g L−1) | Calibration data | Data predicted | Wavenumber region (cm−1) | Preprocessing steps | Factors | RMSEP (g L−1) | r2 prediction |
|---|---|---|---|---|---|---|---|---|
| POX-MCR-ALS | 0–3.0 | Offline: fermentation, standards | Single analyte standards; fermentations 1–4 | 1281–1352 & 1747–1817 | Mean centering, first derivative (Sav-Gol, order 2, window 11) | 5 | 0.16 | 0.97 |
| PenV-MCR-ALS | 0–5.55 | Offline: fermentation, standards | Offline: fermentation, standards; fermentations 1 & 3–4 | 1307–1352 & 1747–1817 | Mean centering, first derivative (Sav-Gol, order 2, window 11) | 5 | 0.23 | 0.95 |