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

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dc.contributor.authorAfseth, Nils Kristian
dc.contributor.authorKnutsen, Svein Halvor
dc.contributor.authorWubshet, Sileshi Gizachew
dc.contributor.authorWold, Jens Petter
dc.contributor.authorMonago Maraña, Olga
dc.date.accessioned2024-05-20T11:17:52Z
dc.date.available2024-05-20T11:17:52Z
dc.date.issued2021-06-08
dc.description.abstractThis 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.en
dc.description.versionversión final
dc.identifier.doihttps://doi.org/10.1016/j.postharvbio.2021.111620
dc.identifier.issn0925-5214 - eISSN: 1873-2356
dc.identifier.urihttps://hdl.handle.net/20.500.14468/11572
dc.journal.titlePostharvest Biology and Technology
dc.journal.volume180
dc.language.isoen
dc.publisherElsevier
dc.relation.centerFacultad de Ciencias
dc.relation.departmentCiencias Analíticas
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
dc.subject.keywordsRaman spectroscopy
dc.subject.keywordsSSC
dc.subject.keywordsapples
dc.subject.keywordsnon-destructive prediction
dc.subject.keywordschemometrics
dc.subject.keywordssugars
dc.titleQuantification of soluble solids and individual sugars in apples by Raman spectroscopy: A feasibility studyes
dc.typejournal articleen
dc.typeartículoes
dspace.entity.typePublication
relation.isAuthorOfPublicationee9ceafc-e763-4814-87ae-e2bb2b43d660
relation.isAuthorOfPublication.latestForDiscoveryee9ceafc-e763-4814-87ae-e2bb2b43d660
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