Related Experiment Video
Updated: Nov 27, 2025

Author Spotlight: Exploring Seaweed's Bioactive Compounds for Sustainable Innovations in Industries
Published on: November 21, 2023
Phenolic profile and antioxidant activity of Euonymus japonicus Thunb
Alba Ruiz-Riaguas1, M L Fernández-de Córdova1, Eulogio J Llorent-Martínez1
1Department of Physical and Analytical Chemistry, Faculty of Experimental Sciences, University of Jaén, Jaén, Spain.
Abstract:
The aim of this study was to characterise the phenolic profile and evaluate the antioxidant activity of aqueous and methanol leaf extracts from Euonymus japonicus Thunb., a species of flowering plant in the Celastraceae family. Liquid chromatography (HPLC) with diode array and electrospray-tandem mass spectrometry (DAD-ESI-MSn) detection was used to characterise and quantify phenolic compounds. Thirty-two compounds were detected; among them, flavonoids (mainly quercetin and kaempferol glycosides) were the most abundant compounds in both extracts. The results obtained for DPPH and ABTS assays in the extracts were in agreement with the highest content of phenolics in the methanol extract.
More Related Videos
07:05Author Spotlight: Eco-Friendly Extraction of Bioactive Compounds Using Polyol-Based Microwave-Assisted Techniques
Published on: August 23, 2024
10:30A Generalized Method for Determining Free Soluble Phenolic Acid Composition and Antioxidant Capacity of Cereals and Legumes
Published on: June 10, 2022
Related Concept Videos
Oxidation of Phenols to Quinones
o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox...
Aromatic Compounds: Overview
In 1825, Faraday isolated...
Radical Autoxidation
Electron Paramagnetic Resonance (EPR) Spectroscopy: Organic Radicals