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Selection and micropropagation of high artemisinin producing clones of Artemisia annua L.
Results from unorganized callus cultures initiated from the leaves of the corresponding clones did not indicate the formation of artemisinin or related sesquiterpenes in these cultures. Expand
Tropane Alkaloids of Hyoscyamus boveanus, H. desertorum, H. muticus and H. albus from Egypt
39 alkaloids of the tropane and pyrrolidine types, apparently new for the genus Hyoscyamus, were identified and their chemoecological functions discussed. Expand
Improved LC methods for the determination of diosmin and/or hesperidin in plant extracts and pharmaceutical formulations.
Two improved, simple, selective and sensitive reversed-phase HPLC methods were developed for the determination of diosmin and hesperidin simultaneously or separately, using external or internalExpand
The First Report on the Occurrence of Furofuranoid Lignan Glucosides in Acanthaceae
Furofuranoid lignans are reported in the family Acanthaceae for the first time and their potential biological activity and chemotaxonomic value are discussed. Expand
Pyrrolizidine alkaloids in members of the Boraginaceae from Sinai (Egypt)
24 alkaloids were unambiguously identified by comparing their specific retention indices and mass fragmentations with those of authentic alkaloid extracts and literature data. Expand
Antihepatotoxic Activity and Chemical Constituents of Buddleja asiatica Lour
The polar fraction of the flowering parts and the roots of Buddleja asiatica Lour showed substantial antihepatotoxic activity comparable to that of the lignan silymarin. Expand
A flavone and diterpene from Psiadia arabica
Abstract The aerial parts of Psiadia arabica yielded two new constituents: a flavone, 5,7,3′-trihydroxy-2′,4′,5′-trimethoxyflavone, the structure of which was derived from spectral data and chemicalExpand
New nodes and edges in the glucosinolate molecular network revealed by proteomics and metabolomics of Arabidopsis myb28/29 and cyp79B2/B3 glucosinolate mutants.
This study provides a comprehensive insight into the molecular networks of glucosinolate metabolism, and will facilitate efforts toward engineering and breeding of glucOSinolate profiles for enhanced crop defense, and nutritional value. Expand
Improved high-performance liquid chromatographic determination of khellin and visnagin in Ammi visnaga fruits and pharmaceutical formulations.
  • M. El-domiaty
  • Chemistry, Medicine
  • Journal of pharmaceutical sciences
  • 1 May 1992
An improved, simple, selective, and sensitive reversed-phase high-performance liquid chromatographic (HPLC) assay for khellin and visnagin in Ammi visnaga L. fruits was developed by using an internalExpand
Reversed-Phase High-Performance Liquid Chromatographic Determination of Artemisitene in Artemisinin
Abstract A new, simple and selective reversed-phase HPLC assay is developed for the determination of the clinically undesirable artemisitene in the antimalarial agent artemisinin (qinghaosu). ItExpand