Article
Determination of pectin content in orange peels by near infrared hyperspectral imaging
Author/s | Teixeira Badaró, Amanda
García-Martín, Juan Francisco López Barrera, María del Carmen Barbin, Douglas Fernandes Álvarez-Mateos, María Paloma |
Department | Universidad de Sevilla. Departamento de Ingeniería Química |
Publication Date | 2020 |
Deposit Date | 2022-12-09 |
Published in |
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Abstract | Pectin has several purposes in the food and pharmaceutical industry making its quantification important for
further extraction. Current techniques for pectin quantification require its extraction using chemicals and ... Pectin has several purposes in the food and pharmaceutical industry making its quantification important for further extraction. Current techniques for pectin quantification require its extraction using chemicals and pro- ducing residues. Determination of pectin content in orange peels was investigated using near infrared hyper- spectral imaging (NIR-HSI). Hyperspectral images from orange peel (140 samples) with different amounts of pectin were acquired in the range of 900–2500 nm, and the spectra was used for calibration models using multivariate statistical analyses. Principal component analysis (PCA) and linear discriminant analysis (LDA) showed better results considering three groups: low (0–5%), intermediate (10–40%) and high (50–100%) pectin content. Partial least squares regression (PLSR) models based on full spectra showed higher precision (R2 > 0.93) than those based on few selected wavelengths (R2 between 0.92 and 0.94). The results demonstrate the potential of NIR-HSI to quantify pectin content in orange peels, providing a valuable technique for orange producers and processing industries. |
Funding agencies | Coordenação de Aperfeiçoamento de Pessoal de Nivel Superior. Brasil |
Project ID. | CAPES-Finance Code 001 |
Citation | Teixeira Badaró, A., García-Martín, J.F., López Barrera, M.d.C., Barbin, D. F. y Álvarez-Mateos, M.P. (2020). Determination of pectin content in orange peels by near infrared hyperspectral imaging. Food Chemistry, 323, 126861. https://doi.org/10.1016/j.foodchem.2020.126861. |
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