- Phytochemistry and Biological Activities
- Essential Oils and Antimicrobial Activity
- Natural product bioactivities and synthesis
- Phytochemicals and Antioxidant Activities
- Ethnobotanical and Medicinal Plants Studies
- Alkaloids: synthesis and pharmacology
- Plant Diversity and Evolution
- Traditional and Medicinal Uses of Annonaceae
- Plant biochemistry and biosynthesis
- Natural Antidiabetic Agents Studies
- Plant Ecology and Taxonomy Studies
- Phytochemistry and Bioactive Compounds
- Traditional Chinese Medicine Analysis
- Phytochemical Studies and Bioactivities
- Phytochemistry Medicinal Plant Applications
- Seed and Plant Biochemistry
- Genomics, phytochemicals, and oxidative stress
- Heavy Metals in Plants
- Phytochemistry and biological activity of medicinal plants
- Bioactive natural compounds
- Phytochemical and Pharmacological Studies
- Pharmacological Effects of Medicinal Plants
- Chemical synthesis and alkaloids
- Psidium guajava Extracts and Applications
- Medicinal Plants and Bioactive Compounds
National Research Centre
2016-2025
Al-Turath University
2024
National Water Research Center
2014-2015
Determination of antioxidant and antimutagenic activities Phlomis armeniaca Mentha pulegiumOnder YUMRUTAS, Saadet D. SAYGIDEGER
To evaluate the in vitro cytotoxic activity of fractionated extract as well isolated compounds Arum palaestinum Boiss. (A. palaestinum) (black calla lily), and to identify volatile components which may be responsible for potential antitumor activity. A. was collected from its natural habitats subjected phytochemical analysis separation pure compounds. In investigated against four human carcinoma cell lines Hep2, HeLa, HepG2 MCF7 While, diethyl ether fraction GC–MS it exhibited most potent...
Zygophyllaceae R.Br. is a family with high level of variability in plasticity that results many conflicts about its taxa ranking and authenticating processes. Five selected Egyptian species belonging to genera, Fagonia, Tribulus, Zygophyllum were applied for comparative chemical molecular study assess their range variations. The plants evaluated DPPH radical scavenging activity. LC‐ESI‐MS/MS profiling the aqueous methanol extracts investigated GNPS networking tentatively identified 174...
Two new flavonoid compounds were isolated from Astragalus bombycinus Boiss. and identified as quercetin-3,7-di-O-β-glucopyranoside 4'-O-α-rhamnopyranoside 5,2',4'-trihydroxy-flavone-8-C-α-arabinopyranoside-7-O-β-glucopyranoside. In addition, apigenin, apigenin-7-O-β-glucopyranoside, apigenin 7-O-gentobioside, luteolin, luteolin-7-O-β-glucopyranoside, quercetin-3,7-di-O-β-glucopyranoside, quercetin-3-O-β-glucopyranoside-7-O-α-rhamnopyranoside daidzein also identified. The structure...
One new naturally isoflavone compound, 5,7,2',3',4' penta hydroxyl isoflavone-4'-O-β-glucopyranoside (1) was isolated from the aqueous methanol extract (AME) of Pulicaria undulata subsp. undulata, together with seven known compounds: kaempferol (2), 3-O-β-glucoside (3), quercetin (4), (5), 3-O-β-galactoside (6), 3,7-di OCH3 (7), and caffeic acid (8). Their structures were established through chemical (acid hydrolysis) spectral analysis (UV, NMR, ESIM). The AME some compounds evaluated as...
Four selected species of family Polygonaceae Juss. viz. Persicaria salicifolia (Brouss. ex Willd.) Assenov, senegalensis (Meisn.) Soják, Polygonum bellardii All. and equisetiforme Sm. were subjected to botanical, chemical numerical studies. The botanical part deals with macro- micromorphological characters the whole plant. extraction identification 17 compounds including flavones, flavonols, flavone C-glycosides phenolic acids. results four a analysis.
AbstractTwelve compounds were isolated from Chrozophora tinctoria (L.) Raf. They identified as kaempferol, kaempferol 3-O-β-glucopyranoside, 3-O-(6″-α-rhamnopyranosyl)-β-glucopyranoside, quercetin, quercetin apigenin, apigenin 7-O-β-glucopyranoside, acacetin, gallic acid, methyl gallate and β-sitosterol-3-O-β-glucopyranoside. Their structures elucidated by chemical spectral methods. Furthermore, chemosystematics of the is briefly discussed. It was indicated that C. only species has...
Context: Albizia species are reported to exhibit many biological activities including antiovulatory properties in female rats and antispermatogenic antiandrogenic male rats.Objective: The present study investigates the flavonoids of amara (Roxb.) B. Boivin (Fabaceae) leaves evaluates their activity on gene expression fertility antioxidant glutathione-S-transferase-related genes treated mice addition effect DNA damage.Materials methods: Plant materials were extracted by using 70% methanol for...
LC-ESI-MS profile, antioxidant activity and cytotoxic screening of Oligomeris linifolia (Vahl) Macbr. (Resedaceae)Ali M. El-Hagrassy, Ahmed Elkhateeb, Sameh R. Hussein, El-Sayed S. Abdel-Hameed, Mona Marzouk
Astragalus L. species were reported for their important biological activities and they used in the treatment of several diseases. sieberi DC. is a wild plant belonging to family Fabaceae growing Egyptian deserts. The was subjected extraction by 70% methanol give total aqueous extract which fractionated organic solvent three fractions; petroleum ether (Pet.Ether), ethyl acetate (EtOAc) (MeOH). These fractions screened vitro cytotoxic activity using colon (HCT-116) breast (MCF-7) carcinoma...
The chemosystematic relationship of four Diplotaxis species; acris, erucoides, harra and muralis were surveyed from the flavonoids point view. These species found to produce 33 (7 flavones 26 flavonols), including 11 compounds isolated in present study D. acris. Among them, seven identified for first time; luteolin (4), kaempferol (8), 3-O-β-glucopyranoside-7-O-α-rhamnopyranoside (13), quercetin 3-O-β-glucopyranoside (16), 7-O-β-glucopyranoside (20), isorhamnetin (22) (32). Their structures...
Arum palaestinum Boiss. populations are in danger of extinction the wild. Thus, there is a need to establish reliable strategy for multiplying this valuable medicinal plant. In present study, seeds and tissue culture A. were subjected biochemical, molecular phytochemical analysis. Obtained results indicated that best medium shoots proliferation was Murashige Skoog (MS) supplemented with 5 mg/L benzyl adenine (BA) 0.1 naphthalene acetic acid (NAA). The regenerated rooted on half strength MS...
Abstract Salvia lanigera Poir. is a small herbaceous perennial species with violet flowers that grows in low‐altitude deserts, and sandy loam. During the collection of S. , unusual populations white were found. Therefore, two (violet‐ white‐flowered) subjected to comparative investigations, including DNA fingerprinting, chemical composition, biological evaluation. The showed variations, 6.66 % polymorphism ISSR 25 SCoT markers. GC/MS UHPLC/HRMS aqueous methanol extracts, led tentative...
To investigate the phenolic profile of Rorippa palustris (R. palustris) compared to Egyptian species evaluate their chemosystematic significance as well screen cytotoxicity R. extract. The chemical components defatted hydroalcoholic extract were analyzed using liquid chromatography-electrospray ionization mass spectrometry technique. cytotoxic activity was evaluated by MTT assay against four carcinoma cell lines. Sixteen compounds corresponding flavonoids (kaempferol and quercetin...
This paper provides a full taxonomic revision of the genus Oxalis for flora Egypt. The study was carried out on herbarium specimens as well fresh materials. revealed presence five species and one variety belonging to three sections by adding O. corymbosa latifolia. corniculata is polymorphic taxon in Egypt which led recognition L. with its type var. repens (Thunb.) Zucc. are mostly weed cultivation along Mediterranean Nile Valley exception anthelmintica restricted southeastern corner Among...
Radical scavenging and In-Vitro Hemolytic Activity of Aqueous Extracts Selected Acacia SpeciesSulaiman C.T. Gopalakrishnan V.K.
Matthiola longipetala subsp. livida is an annual herb in Brassicaceae that has received little attention despite the family’s high reputation for health benefits, particularly cancer prevention. In this study, UPLC-HRMS-MS analysis was used mapping chemical constituents of different plant parts (i.e., flowers, leaves, and roots). Also, spectral similarity networks via Global Natural Products Social Molecular Networking (GNPS) were employed to visualize their differences similarities....