Quantification of soluble solids and individual sugars in apples by Raman spectroscopy: A feasibility study

Monago Maraña, Olga, Afseth, Nils Kristian, Knutsen, Svein Halvor, Wubshet, Sileshi Gizachew y Wold, Jens Petter . (2021) Quantification of soluble solids and individual sugars in apples by Raman spectroscopy: A feasibility study. Postharvest Biology and Technology, 2021, 180, 111620.

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Título Quantification of soluble solids and individual sugars in apples by Raman spectroscopy: A feasibility study
Autor(es) Monago Maraña, Olga
Afseth, Nils Kristian
Knutsen, Svein Halvor
Wubshet, Sileshi Gizachew
Wold, Jens Petter
Materia(s) Ciencias
Abstract This study reports the feasibility of using Raman spectroscopy for quantification of soluble solids and individual sugars in apples. Six different commercial apple varieties were measured by Raman spectroscopy at three different steps: 1) Intact apples with skin, 2) apples without skin and 3) juices obtained from apples. Results indicated that it is possible to measure Raman signals to a depth of 8 mm into the apple with a wide area Raman probe. Multivariate calibration models were established to evaluate how well Raman spectra can be used to estimate the quality parameters SSC (%), total sugars, glucose, fructose and sucrose. Estimation accuracy for SSC was comparable with what is achievable with near-infrared spectroscopy: Root mean square error of cross-validation (RMSECV) = 0.66, 0.46 and 0.72 % and coefficients of determination (R2) = 0.70, 0.85 and 0.63 for intact apples, apples without skin and juices, respectively. Sucrose and glucose were well estimated with RMSECV of 2.8, 1.9, 2.1 mg/mL for glucose and 5.8, 3.9 and 3.7 mg/mL for sucrose, for the three sample cases, respectively. Coefficient of determination was higher than 0.82 for all models. Regression coefficients for all calibration models highlighted identifiable Raman bands that could be related to the target sugars.
Palabras clave Raman spectroscopy
SSC
apples
non-destructive prediction
chemometrics
sugars
Editor(es) Elsevier
Fecha 2021-06-08
Formato application/pdf
Identificador bibliuned:DptoCA-FCIE-Articulos-Omonago-0006
http://e-spacio.uned.es/fez/view/bibliuned:DptoCA-FCIE-Articulos-Omonago-0006
DOI - identifier https://doi.org/10.1016/j.postharvbio.2021.111620
ISSN - identifier 0925-5214 - eISSN: 1873-2356
Nombre de la revista Postharvest Biology and Technology
Número de Volumen 180
Publicado en la Revista Postharvest Biology and Technology, 2021, 180, 111620.
Idioma eng
Versión de la publicación acceptedVersion
Tipo de recurso Article
Derechos de acceso y licencia http://creativecommons.org/licenses/by-nc-nd/4.0
info:eu-repo/semantics/openAccess
Tipo de acceso Acceso abierto
Notas adicionales The registered version of this article, first published in Postharvest Biology and Technology, is available online at the publisher's website: Elsevier, https://doi.org/10.1016/j.postharvbio.2021.111620
Notas adicionales La versión registrada de este artículo, publicado por primera vez en Postharvest Biology and Technology, está disponible en línea en el sitio web del editor: Elsevier, https://doi.org/10.1016/j.postharvbio.2021.111620

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Creado: Tue, 13 Feb 2024, 06:20:27 CET