Water desorption monitoring of cellulose pulps by NIR spectroscopy

Targino de Medeiros Dayane, Guedes Ramalho Fernanda Maria, Gomes Batista Felipe, Reis Prazeres Mascarenhas Adriano, Chaix Gilles, Gherardi Hein Paulo Ricardo. 2023. Water desorption monitoring of cellulose pulps by NIR spectroscopy. Industrial Crops and Products, 192:115989, 9 p.

Résumé : Near infrared (NIR) spectroscopy can be implemented in the evaluation of cellulose. The potential of NIR spectroscopy combined with multivariate analysis to evaluate moisture variation in pulp was studied. Samples of four pulp types were conditioned to different moisture levels. The samples were air dried in a controlled environment, at each 10 % moisture reduction the material was weighed and analyzed with the NIR spectrometer. Principal Component Analysis (PCA) and Partial Least Squares Regression (PLS-R) were applied to the spectral signatures and moisture values obtained during drying. Combining NIR spectroscopy with PLS-R, the moisture of the pulps under different conditions was estimated with R²p ranging from 0.89 to 0.98 for independent validation and root mean square error (RMSEP) ranging from 5.1 % to 18.3 %. The PLS-R models were applied to NIR spectra taken from other pulps and the estimates were consistent. The models showed robustness for monitoring pulps subjected to moisture variations.

Mots-clés Agrovoc : spectroscopie infrarouge, spectroscopie, propriété physicochimique

Mots-clés libres : Machine Learning, Online monitoring, Quality control, Hygroscopicity, Remote Sensing

Classification Agris : Q60 - Traitement des produits agricoles non alimentaires
U30 - Méthodes de recherche

Champ stratégique Cirad : CTS 7 (2019-) - Hors champs stratégiques

Agences de financement hors UE : Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, Conselho Nacional de Desenvolvimento Científico e Tecnológico, Fundação de Amparo à Pesquisa do Estado de Minas Gerais

Auteurs et affiliations

• Targino de Medeiros Dayane, UFLA (BRA)
• Guedes Ramalho Fernanda Maria, UFLA (BRA)
• Gomes Batista Felipe, UFLA (BRA)
• Reis Prazeres Mascarenhas Adriano, UNIR (BRA)
• Chaix Gilles, CIRAD-BIOS-UMR AGAP (FRA) ORCID: 0000-0003-2015-0551
• Gherardi Hein Paulo Ricardo, UFLA (BRA) - auteur correspondant

Source : Cirad-Agritrop (https://agritrop.cirad.fr/605233/)

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