Metabolomics Profiling of Tunisian Sonchus oleraceus L. Extracts and Their Antioxidant Activities

Author:

Nouidha Sameh1ORCID,Selmi Salima1ORCID,Guigonis Jean‐Marie2ORCID,Pourcher Thierry2ORCID,Chekir‐Ghedira Leila1ORCID,Kilani‐Jaziri Soumaya13ORCID

Affiliation:

1. Unit of Bioactive and Natural Substances and Biotechnology UR17ES49 Faculty of Dentistry University of Monastir Avicenne Street 5019 Monastir Tunisia

2. Laboratory Transporter in Imaging and Radiotherapy in Oncology (TIRO) Direction de la Recherche Fondamentale (DRF) Institut des sciences du vivant Fréderic Joliot Commissariat à l'Energie Atomique et aux énergies alternatives (CEA) Côte d'Azur University 06107 Nice France

3. Department of Pharmaceutical Sciences A Faculty of Pharmacy of Monastir University of Monastir Avicenne Street 5019 Monastir Tunisia

Abstract

AbstractSonchus oleraceus (L.) L. (Asteraceae) is an edible wild plant, known for its uses in traditional medicine. The aim of this study is to explore the phytochemical composition of the aerial parts (AP) and roots (R) of aqueous extracts of Sonchus oleraceus L. growing in Tunisia, using liquid chromatography‐tandem mass spectrometry(LC/MS/MS), and determine the content of polyphenols and antioxidant activities. Results showed that aqueous extracts of AP and R contained, respectively, 195.25±33 μg/g and 118.66±14 μg/g gallic acid equivalent (GAE), and 52.58±7 μg/g and 3.2±0.3μg/g quercetin equivalent. AP and R extracts also contained tannins, 581.78±33 μg/g and 948.44±19 μg/g GAE. The AP extract in the 1,1‐diphenyl‐2‐picrylhydrazyl (DPPH), 2,2′‐azinobis(3‐ethylbenzothiazoline‐6‐sulfonic acid) (ABTS) scavenging activities, hydroxyl radical scavenging (OH−) and in cupric reducing antioxidant activity (CUPRAC) assays were respectively 0.325±0.036 mg/mL, 0.053±0.018 mg/mL, 0.696±0.031 mg/mL and 60.94±0.004 μMTE/g, while the R extract using the same assays showed, 0.209±0.052 mg/mL, 0.034±0.002 mg/mL, 0.444±0.014 mg/mL and 50.63±0.006 μM Trolox equivalent/g, respectively. A total of 68 compounds were tentatively identified by LC/MS/MS in both extracts in which quinic acid, pyrogallol, osthrutin, piperine, gentisic acid, fisetin, luteolin, caffeic acid, gingerol, were the most abundant in the LC/MS/MS spectrum. Many of these metabolites were found for the first time in Tunisian Sonchus oleraceus L. which may take account for the antioxidant activities exhibited by the plant.

Publisher

Wiley

Subject

Molecular Biology,Molecular Medicine,General Chemistry,Biochemistry,General Medicine,Bioengineering

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