Figure 1.

The sequence samples collection and spectral measurements during the preparation steps of samples for conventional analysis. (a) Sampling of sugarcane billets by an oblique probe in the cargo truck; (b) sugarcane billets for skin and cross-sectional scanning measurements; (c) milling and homogenization of sugarcane to defibrated sample; (d) defibration sample; (e) pressing of defibrated sample to extracting of juice; (f) extracted raw juice; prepared samples for vis-NIR spectral measurements: (g) cross-sectional and skin of billets inside pipeline chambers, (h) defibrated cane and raw juice; (i) Veris vis-NIR spectrometer and internal configuration scheme of the measurement shank; (j) fibrous cane residue and extracted raw juice for conventional analysis.