Optimization of a polyphenol extraction method for sweet orange pulp (Citrus sinensis L.) to identify phenolic compounds consumed from sweet oranges

Author, as appears in the article.: Iglesias-Carres, Lisard; Mas-Capdevila, Anna; Bravo, Francisca I; Aragones, Gerard; Muguerza, Begona; Arola-Arnal, Anna

Department: Bioquímica i Biotecnologia

e-ISSN: 1932-6203

URV's Author/s: Aragonès Bargalló, Gerard / Arola Arnal, Anna / Bravo Vázquez, Francisca Isabel / Muguerza Marquínez, Maria Begoña

Keywords: Tandem mass spectrometry; Spain; Solvents; Polyphenols; Plant extracts; Hesperidin; Citrus sinensis; Chromatography, high pressure liquid

Abstract: © 2019 Iglesias-Carres et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. The consumption of sweet oranges has been linked to several health benefits, many of which are attributed to hesperidin, a flavanone that is present in high amounts in these fruits. However, other phenolic compounds can contribute to the bioactivity of sweet orange. To link those effects to their phenolic profile, the complete characterization of the phenolic profile is mandatory. Although many studies have profiled the phenolic composition of orange juices, their pulps, which retain phenolic compounds, are overlooked. This fact is particularly relevant because dietary guidelines recommend the consumption of whole fruits. Therefore, this study aimed to develop a specific method for the optimal extraction of phenolics from orange pulp and to use this method to characterize these fruits grown at different locations by HPLC-ESI-MS/MS. The extraction conditions that reported the highest total polyphenol content (TPC) and hesperidin contents were 20 mL/g, 55 C, and 90% methanol. The extraction time and number of sequential steps were further evaluated and optimized as 20 min and two extraction steps, respectively. Although lower extraction rates were achieved when using ethanol as the extraction solvent, high TPC and hesperidin yields were obtained, suggesting the potential use of this methodology to produce phenolic-rich extracts for the food industry. By applying the optimized methodology and analyzing the extracts by HPLC-ESI-MS/MS, geographic cultivation regions were demonstrated to affect the phenolic profiles of oranges. In short, we developed a quick, easy-to-perform methodology that can be used to extract orange phenolics from pulp for their identification and quantification and to evaluate the factors that affect the phenolic profile in sweet orange pulps.

Thematic Areas: Zootecnia / recursos pesqueiros; Sociology; Sociología; Serviço social; Saúde coletiva; Química; Psychology; Psicología; Planejamento urbano e regional / demografia; Odontología; Nutrição; Multidisciplinary sciences; Multidisciplinary; Medicine (miscellaneous); Medicina veterinaria; Medicina iii; Medicina ii; Medicina i; Materiais; Matemática / probabilidade e estatística; Linguística e literatura; Letras / linguística; Interdisciplinary research in the social sciences; Interdisciplinar; Human geography and urban studies; History & philosophy of science; Historia; Geografía; Geociências; General medicine; General biochemistry,genetics and molecular biology; General agricultural and biological sciences; Farmacia; Environmental studies; Ensino; Engenharias iv; Engenharias iii; Engenharias ii; Engenharias i; Enfermagem; Educação física; Educação; Economia; Direito; Demography; Comunicação e informação; Ciências sociais aplicadas i; Ciências biológicas iii; Ciências biológicas ii; Ciências biológicas i; Ciências ambientais; Ciências agrárias i; Ciência política e relações internacionais; Ciência de alimentos; Ciência da computação; Biotecnología; Biology; Biodiversidade; Biochemistry, genetics and molecular biology (miscellaneous); Astronomia / física; Arquitetura, urbanismo e design; Archaeology; Antropologia / arqueologia; Anthropology; Agricultural and biological sciences (miscellaneous); Administração, ciências contábeis e turismo; Administração pública e de empresas, ciências contábeis e turismo

licence for use: https://creativecommons.org/licenses/by/3.0/es/

ISSN: 19326203

Author's mail: franciscaisabel.bravo@urv.cat; anna.arola@urv.cat; gerard.aragones@urv.cat; begona.muguerza@urv.cat

Record's date: 2025-02-08

Journal volume: 14

Paper version: info:eu-repo/semantics/publishedVersion

Link to the original source: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0211267

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

Paper original source: Plos One. 14 (1): e0211267-e0211267

APA: Iglesias-Carres, Lisard; Mas-Capdevila, Anna; Bravo, Francisca I; Aragones, Gerard; Muguerza, Begona; Arola-Arnal, Anna (2019). Optimization of a polyphenol extraction method for sweet orange pulp (Citrus sinensis L.) to identify phenolic compounds consumed from sweet oranges. Plos One, 14(1), e0211267-e0211267. DOI: 10.1371/journal.pone.0211267

Article's DOI: 10.1371/journal.pone.0211267

Entity: Universitat Rovira i Virgili

Journal publication year: 2019

Publication Type: Journal Publications