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- Publications
- Influence
Potential antioxidant phenolic metabolites from doum palm leaves
- Omayma A. Eldahshan, N. Ayoub, A. N. Singab, M. Al-Azizi
- Chemistry
- 30 April 2009
The antioxidant activity of the aqueous ethanolic extract of doum leaves, Hyphaene thebaica L. (Palmae) was studied. Data obtained showed that the extract can inhibit reactive oxygen species attack… Expand
- 26
- 1
Profile of Volatile Components of Hydrodistilled and Extracted Leaves of Jacaranda acutifolia and their Antimicrobial Activity Against Foodborne Pathogens
- A. N. Singab, N. Mostafa, O. Eldahshan, M. Ashour, M. Wink
- Biology, Medicine
- Natural product communications
- 1 July 2014
Volatile constituents of the essential oil and n-hexane extract of Jacaranda acutifolia Humb. and Bonpl. (Bignoniaceae) leaves were determined, and their antimicrobial activities were investigated… Expand
Chemical Composition and Biological Activity of the Essential Oils Obtained From Yellow and Red Carrot Fruits Cultivated In Egypt
- Noha Khalil, M. Ashour, A. N. Singab, O. Salama
- Chemistry
- 2015
The chemical composition of the essential oils from the fruits of Daucus carota var. sativus (yellow carrot) and var. boissieri (red carrot) was determined using GC/FID and GC/MS. Altogether; 29 and… Expand
- 7
- PDF
New Cytotoxic Guaianolides from Centaurea aegyptiaca.
- H. G. Sary, A. N. Singab, K. Y. Orabi
- Biology, Medicine
- Natural product communications
- 14 July 2014
The ethanol extract of Centaurea aegyptiaca aerial parts afforded two new chlorinated bioactive guaianolides, cenegyptin A (1) and cenegyptin B (2), in addition to four known sesquiterpenes (3 - 6).… Expand
Phoenix roebelenii O'Brien DNA profiling, bioactive constituents, antioxidant and hepatoprotective activities
- A. N. Singab, E. M. El-Taher, M. Elgindi, M. S. Kassem
- Chemistry
- 1 July 2015
Abstract Objective To authenticate Phoenix roebelenii O'Brien, and investigate its leaves and fruits phytoconstituents, antioxidant, hepatotoxicity and hepatoprotective activities. Methods DNA… Expand
Antiviral, cytotoxic, antioxidant and anti-cholinesterase activities of polysaccharides isolated from microalgae Spirulina platensis, Scenedesmus obliquus and Dunaliella salina
- A. N. Singab, Nabaweya A. Ibrahim, +4 authors A. A. Matloub
- Chemistry
- 1 June 2018
Quantitative estimation of vegetative and stress forms of Spirulina platensis and Scenedesmus obliquus as well as vegetative form of Dunaliella salina revealed that S. obliquus constituted highest… Expand
Anti-infective Properties of Brachychiton rupestris and Brachychiton luridum Leaves and their Qualitative Phytochemical Screening
- M. El-Shazly, A. N. Singab
- 2017
Brachychiton rupestris and Brachychiton luridum are deciduous trees belonging to family Malvaceae. Several members of the genus Brachychiton and its related genus, Sterculia, are used in folk… Expand
Biological studies concerning the antioxidant and antimicrobial activities of Pelargonium species cultivated in Egypt (Family-Geraniaceae).
- A. N. Singab, Hala M. El-Hefnawy, D. G. El-Kolobby
- Biology
- 7 January 2015
Plant-derived pharmaceuticals have become prominent in the market place, making it a favored healthcare choice. In this study, air dried samples of aerial parts of Pelargonium X fragrans Willd. and… Expand