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Title: Determination of capsaicinoids and carotenoids for the characterization and geographical origin authentication of paprika by UHPLC-APCI- HRMS
Author: Arrizabalaga-Larrañaga, Ane
Campmajó Galván, Guillem
Saurina, Javier
Núñez Burcio, Oscar
Santos Vicente, Francisco Javier
Moyano Morcillo, Encarnación
Keywords: Carotenoides
Inspecció dels aliments
Food inspection
Issue Date: 10-Nov-2020
Publisher: Elsevier B.V.
Abstract: The production area mislabeling of a food product is considered a fraudulent practice worldwide. In this work, a method that uses ultra-high-performance liquid chromatography coupled to high-resolution mass spectrometry using atmospheric pressure chemical ionization (UHPLC-APCI-HRMS) was used for the geographical origin authentication of paprika based on the determination of capsaicinoids and carotenoids. Satisfactory instrumental method performance was obtained, providing good linearity (R2 > 0.998), run-to-run and day-to-day precisions (%RSD < 15 and 10%, respectively), and trueness (relative errors < 10%), while method limits of quantification were between 0.21 and 51 mg·kg-1. Capsaicinoids and carotenoids were determined in 136 paprika samples, from different origins (La Vera, Murcia, Hungary, and the Czech Republic) and types (hot, sweet, and bittersweet). The composition of capsaicinoids and carotenoids was used as chemical descriptors to achieve paprika authentication through a classification decision tree built by partial least squares regression−discriminant analysis (PLS-DA) models and reaching a rate of 80.9%.
Note: Versió postprint del document publicat a:
It is part of: LWT Food Science and Technology, 2020, vol. 139, p. 110533
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ISSN: 0023-6438
Appears in Collections:Articles publicats en revistes (Enginyeria Química i Química Analítica)

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