9 results match your criteria: "University of Mentouri Constantine1[Affiliation]"

The Willd. plant's phenolic constituent extraction and identification were optimized using the ultrasound-assisted extraction (UAE) method and the LC-MS/MS analysis, respectively. Additionally, cupric reducing antioxidant capacity (CUPRAC), beta carotene, reducing power, DMSO alcalin, silver nanoparticle (SNP)-based method, phenanthroline, and hydroxyl radical tests were utilized to assess the extract's antioxidant capacity, while the neuroprotective effect was examined in vitro against acetylcholinesterase enzyme.

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HPLC-DAD-ESI/MS profiles of bioactive compounds, antioxidant and anticholinesterase activities of subsp. alenda growing in Algeria.

Nat Prod Res

November 2022

Department of Chemistry, Bioactive Molecules and Biological Analysis Unit, Valorization of Natural Resources, University of Mentouri Constantine1, Constantine, Algeria.

(Ephedraceae) is used in medicine for various purposes as having, antioxidant, anticarcinogen, antibacterial, anti-inflammatory hepatoprotective, anti-obesity, antiviral and diuretic activities. In this study the aim was to investigate chemical constituents of and understand the possible effects of those constituents in antioxidant activity and alzheimer's disease essay. For this purpose, natural compounds from were characterized by LC-DAD-ESI-MS/MS using negative and positive ionization modes, while the bioactivity was assessed by acetylcholinesterase (AChE) inhibition study and determining of antioxidant activity; DPPH radical scavenging and -carotene bleaching assays were used to assess the antioxidant potential.

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Bioactivity of Natural Products as Complementary Medicine-Part II.

Curr Top Med Chem

March 2022

Valorization of Natural Resources, Bioactive Molecules and Biological Analysis Unit, Department of Chemistry, University of Mentouri Constantine1, Constantine, Algeria.

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Chemical Composition, Acetylcholine Esterase and Anti-bacterial Activities of Essential Oils of Elaeosilenum thapsioides (Desf.) Maire from Algeria.

Curr Top Med Chem

February 2022

Department of Chemistry, Valorization of Natural Resources, Bioactive Molecules and Biological Analysis Unit, University of Mentouri Constantine1, 25000, Constantine, Algeria.

Background: Traditionally, the Algerian medicinal plant Elaeosilenum thapsioides (Desf.) Maire has been used for many diseases. The present research work aims to explore the chemical and biological characterization of its essential oil.

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LC-ESI/MS-phytochemical profiling with antioxidant and antiacetylcholinesterase activities of Algerian L.f. extracts.

Nat Prod Res

January 2023

Valorization of Natural Resources, Bioactive Molecules and Biological Analysis Unit, Department of Chemistry, University of Mentouri Constantine1, Constantine, Algeria.

L.f. is a flowering plant from the Asteraceae family that is native to South Africa and which was observed recently in the north and the east of Algeria.

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The Cosmetic Potential of The Medicinal Halophyte Tamarix Gallica L. (Tamaricaceae) Growing in The Eastern Part of Algeria: Photoprotective and Antioxidant Activities.

Comb Chem High Throughput Screen

December 2021

Valorization of Natural Resources, Bioactive Molecules and Biological Analysis Unit, Department of Chemistry, University of Mentouri Constantine1, Constantine, Algeria.

Aim And Objective: Currently, the use of ingredients from natural sources has gained great attention in the cosmetic field, especially for the development of new photoprotective formulations. Therefore, the present study aimed to evaluate the cosmetic potential of the crude methanol extract and the ethyl acetate fraction of the medicinal halophyte Tamarix gallica L. (Tg) growing in the area of Tebessa in the eastern part of Algeria, by assessing their phenolic and flavonoid contents, photoprotective and antioxidant activities.

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Preliminary analysis of the chemical composition, antioxidant and anticholinesterase activities of Algerian propolis.

Nat Prod Res

November 2020

Laboratory of Natural Product and Organic Synthesis, Department of Chemistry, Univesity Constantine 1, Constantine, Algeria.

Many studies demonstrated that Algerian propolis possess a large spectrum of biological activity. However, few studies regarding its chemical composition are available on literature. We aimed in the present study to investigate the chemical composition of Algerian propolis.

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Chemical characterization of polyphenols from Daucus muricatus growing in Algeria by RP-UHPLC-ESI-QTOF-MS/MS.

Nat Prod Res

April 2018

b Department of Chemistry, Bioactive Molecules and Biological Analysis Unit, Valorization of Natural Resources , University of Mentouri Constantine1, Constantine , Algeria.

In the present work, reversed phase (RP) ultra-high-performance liquid chromatography (UHPLC) coupled to quadrupole-time-of-flight (QTOF) mass spectrometry in tandem has been used for the identification of the main phenolic compounds in the aerial parts of Daucus muricatus. The characterisation of the compounds was carried out taking into account retention time, mass accurate measurements, the generated molecular formulae and fragmentation pattern. These data were contrasted with literature and databases, as well as with those of authentic standards when possible.

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