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Artículo

Protected geographical identification of honey by spark discharge-assisted laser-induced breakdown spectroscopy (LIBS)

Fechner, Diana CorinaIcon ; Silva, Tiago Varão; Nespeca, Maurilio Gustavo; Vieira, Alan Lima; Neto, Joséanchieta Gomes; Júnior, Dário Santos; Pellerano, Roberto GerardoIcon ; Ferreira, Edilene Cristina
Fecha de publicación: 05/2021
Editorial: Perkin-Elmer Corporation
Revista: Atomic Spectroscopy
ISSN: 0195-5373
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Química Analítica

Resumen

Honey is a natural food that is valued worldwide for its nutritional and therapeutic values. Therefore, authentication of honey according to the geographical origin is a guarantee of the genuine properties. In this article, an evaluation of spark discharge-assisted laser-induced breakdown spectroscopy (SD-LIBS) for certification of the geographical origin of honey is reported. Forty-nine samples of multifloral honey produced in four Argentine provinces were considered. The results showed the best classification performance was obtained using smoothing, generalized least squares weighting (GLSW) and mean centering for spectral preprocessing, added to the k-nearest neighbor (kNN) or Support Vector Machine (SVM) classification algorithms, which provided 100% of correct classification. More importantly, the results of Partial Least Squares – Discriminant Analysis (PLS-DA) pointed to N, Ca, K, Cu, Fe and Mn as key elements for the certification of geographical origin. In addition, the greatest potential of N stands out for the discrimination of the origin of honey. These findings confirm SD-LIBS as a promising tool for authentication of honey quality, providing a simple, fast and environmentally friendly solution. The method can be useful for industry, the market and others related to food authenticity.
Palabras clave: HONEY , NATURAL FOODS , AUTHENTICATION , SD-LIBS
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/150767
URL: http://www.at-spectrosc.com/as/article/pdf/2021022
DOI: http://dx.doi.org/10.46770/AS.2021.022
Colecciones
Articulos(IQUIBA-NEA)
Articulos de INSTITUTO DE QUIMICA BASICA Y APLICADA DEL NORDESTE ARGENTINO
Citación
Fechner, Diana Corina; Silva, Tiago Varão; Nespeca, Maurilio Gustavo; Vieira, Alan Lima; Neto, Joséanchieta Gomes; et al.; Protected geographical identification of honey by spark discharge-assisted laser-induced breakdown spectroscopy (LIBS); Perkin-Elmer Corporation; Atomic Spectroscopy; 42; 3; 5-2021; 148-153
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