Výsledky vyhledávání - "Nadia A. El-Sebakhy"

Analysis of astragalosides I, II and IV in some Egyptian Astragalus species and Astragalus dietary supplements using high‐performance liquid chromatography/evaporative light scattering detector and non‐parametric regression

Autor: Marwa S. Moneeb, Mohamed A. Korany, Alaa A. El-Banna, Nadia A. El-Sebakhy, Aya M. Asaad

Publikováno v: Phytochemical Analysis. 31:594-605

Introduction GenuTs Astragalus L. is characterised by the presence of cycloartane saponins which have wide biological activities such as antioxidant, immunomodulating' hepatoprotective and anti-inflammatory activities. From these cycloartane saponins

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::45f7ad06b5df1fb8351a677b3b422ee9
https://doi.org/10.1002/pca.2925

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The Use of Merbromin Fluorescence Quenching for the Assay of Silymarin in its Natural Source and Pharmaceutical Preparations

Autor: Marwa S. Moneeb, Alaa A. El-Banna, Aya M. Asaad, Mohamed A. Korany, Nadia A. El-Sebakhy

Publikováno v: Analytical Chemistry Letters. 9:152-167

Silymarin is a mixture of anti-hepatotoxic polyphenolic substances isolated from the milk thistle plant, Silybum marianum (L.) Gaertn. Silymarin is a static quencher, therefore, a new sensitive spe...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6dda4b411c6b448813c0e94fff08385c
https://doi.org/10.1080/22297928.2019.1613927

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A Validated Stability-Indicating HPTLC Assay for Determination of 10-Hydroxy-2-Decenoic Acid Content in Royal Jelly Products Using Robust Regression Methods

Autor: Mohamed A. Korany, Marwa S. Moneeb, Nadia A. El-Sebakhy, Alaa A. El-Banna, Aya M. Asaad

Publikováno v: Journal of chromatographic science. 58(6)

A new, simple, stability-indicating high-performance thin-layer chromatography method was developed for the quantification of 10-hydroxy-2-decenoic acid (10-HDA) in some royal jelly products marketed in Egypt. The used solvent system was chloroform:a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5757f63294fb37aff83da004894a05ab
https://pubmed.ncbi.nlm.nih.gov/32390054

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Analysis of astragalosides I, II and IV in some Egyptian Astragalus species and Astragalus dietary supplements using high-performance liquid chromatography/evaporative light scattering detector and non-parametric regression

Autor: Mohamed A, Korany, Marwa S, Moneeb, Aya M, Asaad, Nadia A, El-Sebakhy, Alaa A, El-Banna

Publikováno v: Phytochemical analysis : PCAREFERENCES. 31(5)

GenuTs Astragalus L. is characterised by the presence of cycloartane saponins which have wide biological activities such as antioxidant, immunomodulating' hepatoprotective and anti-inflammatory activities. From these cycloartane saponins are astragal

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::2de5adfe2516b604b569d1adab34f054
https://pubmed.ncbi.nlm.nih.gov/32023361

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Near-infrared spectroscopy combined with chemometrics for quality control of German chamomile (Matricaria recutita L.) and detection of its adulteration by related toxic plants

Autor: Fikria A. Darwish, Amr El-Hawiet, Nadia A. El Sebakhy, Yasmin A. Mahgoub, Eman Shawky

Publikováno v: Microchemical Journal. 158:105153

German Chamomile is known to be one of the most widely used plants in the growing market of herbal drugs due to its vast range of medicinal and therapeutic properties. The high demand on the plant raw material makes it prone to deliberate as well as

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7370cb5b93d3284017b238dfe28f6752
https://doi.org/10.1016/j.microc.2020.105153

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Chemical constituents from Astragalus annularis Forssk. and A. trimestris L., Fabaceae Constituintes químicos de Astragalus annularis Forssk. and A. trimestris L., Fabaceae

Autor: Amr M. El-Hawiet, Soad M. Toaima, Aya M. Asaad, Mohamed M. Radwan, Nadia A. El-Sebakhy

Publikováno v: Revista Brasileira de Farmacognosia, Vol 20, Iss 6, Pp 860-865 (2010)

The phytochemical investigation of the aerial parts of Astragalus annularis Forssk. and A. trimestris L., Fabaceae, growing in Egypt, resulted in the isolation of eight compounds, for the first time from these two species. These compounds were identi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doajarticles::4d6f56aafe575acbfebfd4f1fa0067d5
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-695X2010000600006

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Kahiricosides II–V, cycloartane glycosides from an Egyptian collection of Astragalus kahiricus

Autor: Mohamed M. Radwan, Nadia A. El-Sebakhy, Soad M. Toaima, Aya M. Asaad, David G. I. Kingston

Publikováno v: Phytochemistry. 65:2909-2913

Four cycloartane-type saponins, kahiricosides II-V (1-4), were isolated from the aerial parts of Astragalus kahiricus of Egyptian origin. Their structures were established as 9beta,19-cyclolanost-24E-ene-3beta,6alpha,16beta,27-tetraol-3-O-beta-D-gluc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::32ec85bec2a50fb869208629dd4fbb2b
https://doi.org/10.1016/j.phytochem.2004.08.037

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