Author, as appears in the article.: Sans S; Ferré J; Boqué R; Sabaté J; Casals J; Simó J

Department: Química Analítica i Química Orgànica

URV's Author/s: Boqué Martí, Ricard / Ferré Baldrich, Joan

Keywords: ‘calçot’ Soluble solids content Reflectance spectroscopy Quality Products Pls Phaseolus-vulgaris l. Onions Nir spectroscopy Nir Multivariate calibration Fruit Dry-matter Chemometrics Calçot Antioxidant activity 'calcot' quality pls nir multivariate calibration chemometrics

Abstract: © 2018 Elsevier Ltd ‘Calçots’ the immature floral stems of second-year onion resprouts, are an economically important traditional crop in Catalonia (Spain). Classical approaches to evaluating the chemical properties of ‘calçots’ are time consuming and expensive; near-infrared spectroscopy (NIRS) may be faster and cheaper. We used NIRS to develop partial least square (PLS) models to predict dry matter, soluble solid content, titratable acidity, and ash content in cooked ‘calçots’. To guarantee the robustness of the models, calibration samples were grown and analyzed in a first season (2014–15) and validation samples in a second season (2015–16). NIRS on puree spectra estimated dry matter and soluble solid content with excellent accuracy (R2pred = 0.953, 0.985 and RPD = 4.571, 8.068, respectively). However, good estimation of titratable acidity and ash content required using ground dried puree spectra (R2pred = 0.852, 0.820 and RPD = 2.590, 1.987, respectively). NIRS can be a helpful tool for ‘calçots’ breeding and quality control.

Thematic Areas: Zootecnia / recursos pesqueiros Saúde coletiva Química Odontología Nutrition & dietetics Nutrição Medicine (miscellaneous) Medicina veterinaria Medicina ii Medicina i Materiais Matemática / probabilidade e estatística Interdisciplinar Geociências Food science & technology Food science Farmacia Ensino Engenharias iv Engenharias iii Engenharias ii Engenharias i Enfermagem Educação física Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciências agrárias i Ciência de alimentos Ciência da computação Chemistry, applied Biotecnología Biodiversidade Astronomia / física Analytical chemistry Administração pública e de empresas, ciências contábeis e turismo

ISSN: 03088146

Author's mail: ricard.boque@urv.cat joan.ferre@urv.cat

Author identifier: 0000-0001-7311-4824 0000-0001-6240-413X

Last page: 183

Record's date: 2023-02-22

Journal volume: 262

Papper version: info:eu-repo/semantics/submittedVersion

Link to the original source: https://www.sciencedirect.com/science/article/abs/pii/S0308814618307428

Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/

Papper original source: Food Chemistry. 262 178-183

APA: Sans S; Ferré J; Boqué R; Sabaté J; Casals J; Simó J (2018). Determination of chemical properties in ‘calçot’ (Allium cepa L.) by near infrared spectroscopy and multivariate calibration. Food Chemistry, 262(), 178-183. DOI: 10.1016/j.foodchem.2018.04.102

Article's DOI: 10.1016/j.foodchem.2018.04.102

Entity: Universitat Rovira i Virgili

Journal publication year: 2018

First page: 178

Publication Type: Journal Publications