Organ-dependent variability in mineral composition, phytochemicals and antioxidant potentials in Polygonum equisetiforme parts

Maher Mahmoudi; Fayçal Boughalleb; Samah Maaloul; Talel Bouhamda; Nizar Nasri; Raoudha Abdellaoui

doi:10.62313/ijpbp.2024.177

Authors

Maher Mahmoudi University of Jendouba, Higher Institute of Biotechnology of Beja, Laboratory of Functional Physiology and Valorization of Bio-Ressources, Beja 382-9000, Tunisia https://orcid.org/0000-0002-4114-2959
Fayçal Boughalleb University of Gabes, Arid Regions Institute, Laboratory of Rangeland Ecosystems and Valorization of Spontaneous Plants and Associated Microorganisms, Medenine, Tunisia https://orcid.org/0000-0002-3583-9303
Samah Maaloul University of Gabes, Arid Regions Institute, Laboratory of Rangeland Ecosystems and Valorization of Spontaneous Plants and Associated Microorganisms, Medenine, Tunisia https://orcid.org/0000-0002-5345-6285
Talel Bouhamda University of Gabes, Arid Regions Institute, Advanced Analysis Platform, Medenine, Tunisia https://orcid.org/0009-0004-6487-5583
Nizar Nasri University of Tunis El-Manar, Faculty of Sciences of Tunis, Laboratory of Plant, Soil and Environment Interactions (LR21ES01), Tunis, Tunisia https://orcid.org/0000-0002-7662-3998
Raoudha Abdellaoui University of Gabes, Arid Regions Institute, Laboratory of Rangeland Ecosystems and Valorization of Spontaneous Plants and Associated Microorganisms, Medenine, Tunisia https://orcid.org/0000-0003-2767-9650

DOI:

https://doi.org/10.62313/ijpbp.2024.177

Keywords:

Polygonum equisetiforme, Minerals, Phenolics, Antioxidant, LC-ESI/MS

Abstract

Polygonum equisetiforme is a perennial herbaceous plant thriving in the arid regions of Tunisia and widely used in health care and self-medication. The objective of the current study was to investigate the distribution of minerals, phenolic compounds, and antioxidant potentials in various plant parts including the fruit, stem, leaf, and root. The mineral composition was determined using flame atomic absorption spectrometry. The phenolic content of the samples was investigated using colorimetric assays and identified and quantified using HPLC-ESI/MS. The study found that the different parts of P. equisetiforme contain significant amounts of essential minerals such as sodium, potassium, calcium, magnesium, copper, zinc, and iron. The leaf and root extracts had high amounts of polyphenols, flavonoids, and tannins. Through LC-ESI-MS analysis, eleven flavonoids and eight phenolic acids were characterized. The most abundant compounds were gallic acid, quinic acid, catechin (+), and hyperoside. The findings suggest that different parts of P. equisetiforme are valuable sources of essential minerals and phenolic compounds, which can have potential health benefits.

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