Work

Diversity of Color, Infrared Spectra, and Phenolic Profile Correlation in Citrus Fruit Peels

Year: 2025

Type: conference-paper

Abstract: Citrus waste is a source of phytochemicals with extensive health properties, mainly diglycosylated flavonoids. In this experiment, the characterization of dried peels from three main citrus species, lemon (Citrus limon), orange (Citrus sinensis), and grapefruit (Citrus paradisi), was performed using various analytical techniques. The FTIR spectra of each species show the characteristic bands of C=O stretching and O-H stretching and bending, and the PCA shows discrimination between species based on their chemical nature. The TPC determined by UV-vis spectroscopy was found to be higher for grapefruit peel by 12.4% and 38.9% compared to lemon and orange, which coincides with the individual flavonoid content obtained by HPLC-MS/MS. Meanwhile, full-scan HPLC-MS confirmed a wider variety of phytochemicals in lemon peel.

DOI: 10.3390/blsf2024040026

Authors: Rosa Zapata, Lorena Martínez-Zamora, Francisco Artés-Hernández

Institutions: Universidad Politécnica de Cartagena, Universidad de Murcia

Language: English

Topic: Phytochemicals and Antioxidant Activities

Subfield: Biochemistry

Field: Medicine

Domain: Health Sciences

Open Access status: gold

Funders: Fundación Séneca, Universidad de Murcia, Ministerio de Ciencia e Innovación, Universidad Politécnica de Cartagena, Comunidad Autónoma de la Región de Murcia, European Regional Development Fund, Agencia Estatal de Investigación

Awards: G1175115578, G1272927172, G2262748287, G2550080368, G2770819019, G300979063, G3480869486, G348919436, G363809202, G410571670, G425668148, G4451897781, G451917667, G5080475149, G5967599077

OpenAlex ID: W4407307218

FWCI: 66.62

Cites: 28

Cited by: 10

Related to: 10