Characterization of Spanish Paprika by Multivariate Analysis of Absorption and Fluorescence Spectra

Monago Maraña, Olga, Bartolomé García, Teresa de Jesús, Galeano Díaz, Teresa y Kostrzewa-Rutkowska, Z. . (2016) Characterization of Spanish Paprika by Multivariate Analysis of Absorption and Fluorescence Spectra. Astronomy & Astrophysics

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Título Characterization of Spanish Paprika by Multivariate Analysis of Absorption and Fluorescence Spectra
Autor(es) Monago Maraña, Olga
Bartolomé García, Teresa de Jesús
Galeano Díaz, Teresa
Kostrzewa-Rutkowska, Z.
Materia(s) Ciencias
Abstract Spanish paprika was clustered on the basis of the Spanish Protected Designation of Origin “Pimentón de La Vera” by molecular absorbance and fluorescence with principal component analysis and parallel factor analysis. Rapid extraction of carotenoids, capsaicinoids, and tocopherols was optimized; the best conditions included ethanol as the extractant, an extraction time of 10 min in an ultrasonic bath, and a sample size of 0.1 g. The procedure provided good precision with a relative standard deviation of 1.2% for four samples. Molecular absorption spectra were obtained from 250 to 600 nm and fluorescence excitation and emission spectra were collected from 200 to 295 nm and 300 to 400 nm, respectively. Forty-eight “Pimentón de La Vera” paprika samples and 19 samples from other origins were characterized. A principal component analysis model was constructed from the absorption spectra and clustering was obtained based on the origin. Parallel factor analysis was performed on the fluorescence data and better characterization of the origin was obtained.
Palabras clave Absorption
fluorescence
paprika
parallel factor analysis
principal component analysis
methods: data analysis
Editor(es) Taylor and Francis Group
Fecha 2016-04-21
Formato application/pdf
Identificador bibliuned:DptoCA-FCIE-Articulos-Omonago-0008
http://e-spacio.uned.es/fez/view/bibliuned:DptoCA-FCIE-Articulos-Omonago-0008
DOI - identifier https://doi.org/10.1080/00032719.2015.1089257
ISSN - identifier 0003-2719; eISSN 1532-236X
Nombre de la revista Analytical Letters
Número de Volumen 49
Número de Issue 8
Página inicial 1184
Página final 1197
Publicado en la Revista Astronomy & Astrophysics
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/closedAccess
Tipo de acceso Acceso abierto
Notas adicionales La versión registrada de este artículo, publicado por primera vez en Analytical Letters, está disponible en línea en el sitio web del editor: Taylor & Francis, https://doi.org/10.1080/00032719.2015.1089257
Notas adicionales The registered version of this article, first published in Analytical Letters, is available online at the publisher's website: Taylor & Francis, https://doi.org/10.1080/00032719.2015.1089257

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Creado: Tue, 20 Feb 2024, 18:51:32 CET