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- Publications
- Influence
Triterpenoid saponins with N-acetyl sugar from the bark of Albizia procera.
- F. R. Melek, T. Miyase, N. Ghaly, M. Nabil
- Biology, Medicine
- Phytochemistry
- 1 May 2007
Three (1,2,4) and one known (3) triterpenoid saponins were isolated from the bark of Albizia procera. The saponins were characterized as… Expand
Triterpenoid saponins from Schefflera arboricola.
- F. R. Melek, T. Miyase, S. A. Khalik, M. Elgindi
- Chemistry, Medicine
- Phytochemistry
- 1 June 2003
Nine triterpenoid saponins were isolated from the leaves and stems of Schefflera arboricola. The saponins were characterised, on the basis of chemical and spectral evidence, as… Expand
Echinocystic acid 3,16-O-bisglycosides from Albizia procera.
- T. Miyase, F. R. Melek, N. Ghaly, T. Warashina, M. el-Kady, M. Nabil
- Chemistry, Medicine
- Phytochemistry
- 1 August 2010
Three triterpene glycosides and two known ones were isolated from the bark of Albizia procera by using chromatographic techniques. The structures of the compounds were determined to be… Expand
Flavonoids from Albizia chinensis of Egypt
- N. S. Ghaly, F. R. Melek, Nayera A M Abdelwahed
- Biology
- 1 December 2010
The flavonoids kaempferol-3-O-α-L-rhamnopyranoside, quercetin-3-O-α-L-rham nopyranoside together with luteolin, kaempferol and quercetin, were isolated from the methanolic extract of the leaves of… Expand
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Triterpenoid saponins from Oreopanax guatemalensis.
- F. R. Melek, T. Miyase, S. Abdel-khalik, M. Hetta, I. Mahmoud
- Chemistry, Medicine
- Phytochemistry
- 1 May 2002
Seven oleanane-type saponins were isolated from the leaves and stems of Oreopanax guatemalensis, together with ten known saponins of lupane and oleanane types. The new saponins were respectively… Expand
Triterpenoid saponins from Fagonia cretica.
- S. M. Abdel Khalik, T. Miyase, H. A. el-Ashaal, F. R. Melek
- Medicine
- Phytochemistry
- 2000
Four new triterpenoid saponins were isolated and identified from the aerial parts of Fagonia cretica. They were characterized as 3-O-[beta-D-glucopyranosyl (1-->2)-alpha-L-arabinopyranosyl]… Expand
Saponins and acylated saponins from Dizygotheca kerchoveana.
- F. R. Melek, T. Miyase, S. Abdel-khalik, I. Mahmoud, S. A. Mina
- Chemistry, Medicine
- Phytochemistry
- 1 December 2004
Four new triterpenoid saponins were isolated from the leaves and stem of branches of Dizygotheca kerchoveana along with seven known ones. The new saponins were respectively characterized as… Expand
Cytotoxic triterpenoid saponins acylated with monoterpenic acids from fruits of Gleditsia caspica Desf.
- T. Miyase, F. R. Melek, T. Warashina, M. Selim, N. M. El Fiki, I. Kassem
- Chemistry, Medicine
- Phytochemistry
- 1 November 2010
Four bisdesmosidic triterpenoid saponins named caspicaosides A-D, were isolated from the fruits of Gleditsia caspica Desf. Their structures were determined by NMR spectroscopy including HOHAHA, ¹H-¹H… Expand
Further saponins from Meryta lanceolata.
- F. R. Melek, T. Miyase, N. Ghaly, M. Yousif
- Chemistry, Medicine
- Phytochemistry
- 1 April 2004
Five new oleanane-type saponins along with 11 known ones were isolated from the leaves and stems of Meryta lanceolata. The new saponins were characterised by spectroscopic analysis including FAMS, 1… Expand
Three further triterpenoid saponins from Gleditsia caspica fruits and protective effect of the total saponin fraction on cyclophosphamide-induced genotoxicity in mice
- F. R. Melek, F. A. Aly, Iman. K. A. Kassem, M. Abo-Zeid, A. Farghaly, Z. M. Hassan
- Biology, Medicine
- Zeitschrift fur Naturforschung. C, Journal of…
- 2015
Abstract Three triterpenoidal saponins were isolated from the saponin fraction derived from a Gleditsia caspica Desf. methanolic fruit extract. The isolated saponins were identified as gleditsiosides… Expand