Phytochemical analysis and antioxidant activity ofTamarix africana, Arthrocnemum macrostachyumandSuaeda fruticosa,three halophyte species from Algeria

Solvent polarity mediates phytochemical yield and antioxidant capacity of Isatis tinctoria

“…In the current study, phosphomolybdate method was adapted to evaluate the impact of solvent polarity on the total antioxidant capacity in four different parts of woad. Phosphomolybdate method is adopted by a large group of researchers for the evaluation of antioxidant capacity and is considered one of the most authentic methods used for TAC (Chekroun-Bechlaghem et al, 2019). TAC of extracts varied significantly among different solvents and plant parts, which indicates that each solvent with specific polarity can isolate specific compounds that have a specific antioxidant capacity.…”

“…Extraction techniques, solvent type, and polarity, plant part selected for extraction mediate antioxidant and free radical scavenging capacity (Chekroun-Bechlaghem et al, 2019). DPPH free radical method has been extensively used for different natural and synthetic compounds antioxidant and free radicals scavenging potential (Zhu et al, 2018; Chekroun-Bechlaghem et al, 2019). First of all, the percent inhibition of DPPH free radicals was identified in four different concentrations (200, 100, 50, and 20 µg/mL) of each extract.…”

“…Medicinal plants have a wide range of phytochemicals that are directly dependent on the plant developmental stage, plant parts, and the solvents used for the extraction and isolation of these phytochemicals (Senguttuvan, Paulsamy & Karthika, 2014; Ullah et al, 2017; Chekroun-Bechlaghem et al, 2019). In the current study, it is reported that the crude extracts quality, purity, and quantity greatly depend on the plant part used and the solvent used for the extraction.…”

“…HPLC based analysis of the medicinal plants has reported and commercialized life saving therapeutics such as tryptanthrine and artemisinin (Mohn, Plitzko & Hamburger, 2009; Güner et al, 2019; Zafar et al, 2019). The quality, quantity, and biological activities of these phytochemicals are directly dependent on the plant developmental stage, plant parts, and the solvents used for the extraction and isolation (Senguttuvan, Paulsamy & Karthika, 2014; Ullah et al, 2017; Chekroun-Bechlaghem et al, 2019). In the current study, branches, flowers, leaves, and roots of Isatis tinctoria (woad) were selected on the bases of their use in the folk/conventional medicine.…”

Antioxidants and Health-Beneficial Nutrients in Fruits of Eighteen Cucurbita Cultivars: Analysis of Diversity and Dietary Implications

“…Polyphenols are plant secondary metabolites with high antioxidant capacity. Their activity is determined by direct reaction with free radicals, scavenging of free radicals and singlet oxygen, reactivity as hydrogen-or electron-donating agents, capability of reacting with other antioxidants, ability to produce new generation of antioxidant-derived radicals, and by the potential of chelating transition metals [44,45].Phenolic compounds occur widely in fruits, vegetables, herbs, and beverages [46][47][48][49]. From among the tested Cucurbita pulps, the Japanese 'Kogigu' (C. mochata) cultivar was extraordinary in terms of the total phenolic content; it contained the highest amount of these compounds (70.8 CAE 100 g −1 f.w.).…”