Open AccessSubcritical water extraction of polyphenols from endemic Algerian plants with medicinal properties
Author(s) -
Abdelmoumen Benmerzoug,
Jaroslava ŠvarcGajić,
Nataša Nastić,
Sofiane Guettaf,
Daoud Harzallah
Publication year - 2020
Publication title -
acta periodica technologica/acta periodica technologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.134
H-Index - 15
eISSN - 2406-095X
pISSN - 1450-7188
DOI - 10.2298/apt2051191b
Subject(s) - phenols , extraction (chemistry) , polyphenol , water extraction , solvent , yield (engineering) , water soluble , dry weight , chemistry , traditional medicine , botany , solvent extraction , medicinal plants , chromatography , biology , organic chemistry , materials science , medicine , metallurgy , antioxidant
Ephedra alata, Ononis angustissima, and Genista saharae are endemic Algerian plants with pharmacological potential, used for centuries in traditional medicine. Herein the efficiency of subcritical water extraction (SWE) of phenols and flavonoids from these plants was evaluated by spectrophotometric assays. The most important operational parameters of the technique (temperature, pressure, time) were optimized for each plant based on phenols yield. At defined optimal extraction conditions (140?C for E. alata, 155?C for O. angustissima and G. saharae, 50 bars, 15min), maximum contents of phenols in the extracts were 16.13, 18.33, and 21.12 mg GAE/g dry weight, for E. alata, O. angustissima, and G. saharae, respectively. Considering the safety of the used solvent, excellent yields of phenols and short extraction time, subcritical water extraction can efficiently be used in exploitation of pharmacological potentials of the studied plants.