Antioxidant activity and enzyme inhibitory potential of Euphorbia resinifera and E. officinarum honeys from Morocco and plant aqueous extracts

• Published in: Environmental science and pollution research international Vol. 28; no. 1; pp. 503 - 517
• Main Authors: Boutoub, Oumaima, El-Guendouz, Soukaina, Estevinho, Letícia M., Paula, Vanessa B., Aazza, Smail, El Ghadraoui, Lahsen, Rodrigues, Brígida, Raposo, Sara, Carlier, Jorge, Costa, Maria C., Miguel, Maria G.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 2021; Springer Nature B.V
• Subjects: Acetylcholinesterase; Aluminum; Antioxidants; Aquatic Pollution; Atmospheric Protection/Air Quality Control/Air Pollution; Beehives; Earth and Environmental Science; Ecotoxicology; Environment; Environmental Chemistry; Environmental Health; Environmental science; Enzymatic activity; Euphorbia; Euphorbia resinifera; Food industry; Free radicals; Honey; Honey - analysis; Lipoxygenase; Morocco; Natural products; Pharmaceutical industry; Phenols; Phenols - analysis; Plant Extracts; Plant species; Research Article; Scavenging; Superoxide anions; Tyrosinase; Waste Water Technology; Water Management; Water Pollution Control; Xanthine oxidase; Morocco; Xanthine oxidase; Antioxidant; Acetylcholinesterase; Lipoxygenase; Natural products; Tyrosinase
• ISSN: 0944-1344; 1614-7499
• DOI: 10.1007/s11356-020-10489-6

Natural products may be applied in a wide range of domains, from agriculture to food and pharmaceutical industries. In this study, the antioxidant properties and the capacity to inhibit some enzymatic activities of Euphorbia resinifera and Euphorbia officinarum aqueous extracts and honeys were assessed. The physicochemical characteristics were also evaluated. Higher amounts of iron, copper and aluminium were detected in E. officinarum honey, which may indicate environmental pollution around the beehives or inadequate storage of honey samples. This honey sample showed higher amounts of total phenols and better capacity for scavenging superoxide anion free radicals and DPPH free radicals as compared with E. resinifera honey, but poorer capacity for inhibiting lipoxygenase, acetylcholinesterase, tyrosinase and xanthine oxidase. The ratio plant mass:solvent volume (1:100) and extraction time (1 - 2 h) were associated with higher total phenols and better antioxidant activities and lipoxygenase, acetylcholinesterase and tyrosinase inhibitory activities, regardless of the plant species. The aqueous extracts had systematically higher in vitro activities than the respective honey samples.