Development of the partial least-squares model to determine the soluble solids content of sugarcane billets on an elevator conveyor

dc.contributor.authorUdompetaikul, Vasu
dc.contributor.authorPhetpan, Kittisak
dc.contributor.authorSirisomboon, Panmanas
dc.date.accessioned2026-08-06T10:31:43Z
dc.date.available2026-08-06T10:31:43Z
dc.date.issued2021-01-01
dc.description.abstractThis study aimed to determine the optimum multivariate model for monitoring the soluble solids content (SSC) of sugarcane billets being transferred on a conveyor. The study covered two main issues: the exploration of an appropriate spectral range (450–900 nm versus 700–900 nm) and the assessment of the influence of different levels of cane billets on an elevator via modelling to predict the SSC values. Partial least squares regression (PLSR) was used for model development. Modelling using the range of 450–900 nm employed 4 latent variables (LVs) and showed the coefficient of determination (R<sup>2</sup>) and root mean squares error of prediction (RMSEP) of 0.83 and 0.29 °Brix, respectively. This caused the model established using the range of 700–900 nm, employed 3 LVs and provided the R<sup>2</sup> and RMSEP values of 0.81 and 0.31 °Brix, respectively, seems more appropriate. In case of assessing the different cane levels on the conveyor, the outcomes presented model performance of the full and half cane levels in predicting half and full cane datasets with R<sup>2</sup> and RMSEP of 0.52 and 0.55 °Brix and 0.53 and 0.48 °Brix, respectively. This showed that the different levels affected the SSC predictive accuracy of the model. The combined model was developed to cover variations of this difference and was used to predict two external sets. The predictions of ninety and thirty samples that were collected from the same and different growing seasons as the samples for the modelling presented the R<sup>2</sup>, RMSEP and RPD of 0.70, 0.42 °Brix and 1.83 and 0.56, 0.42 °Brix and 2.00, respectively.
dc.identifier.citationMeasurement Journal of the International Measurement Confederation, 167, 2021
dc.identifier.doi10.1016/j.measurement.2020.107898
dc.identifier.issn02632241
dc.identifier.other2-s2.0-85088916106
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/11801
dc.sourceMeasurement Journal of the International Measurement Confederation
dc.subjectNear-infrared spectroscopy
dc.subjectReal-time cane quality
dc.subjectSoluble solids content
dc.subjectSugarcane
dc.titleDevelopment of the partial least-squares model to determine the soluble solids content of sugarcane billets on an elevator conveyor
dc.typeArticle

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