Abdallah Omar
University of Oxford, Architecture, Faculty Member
A sensitive, reliable, simple and rapid thin-layer chromatographic method has been developed for routine analysis of withanolide S content for the purpose of quality control assessment of chemotype III of W. somnifera. The new method was... more
A sensitive, reliable, simple and rapid thin-layer chromatographic method has been developed for routine analysis of withanolide S content for the purpose of quality control assessment of chemotype III of W. somnifera. The new method was used first to compare the accumulation of withanolide S in different parts of the plant, which was found to be the highest in the leaves extract (0.21% w/w). Secondly to investigate different extraction parameters that improve the extraction efficiency of withanolides from the leaves using conventional and ultrasound-assisted extraction methods. The extraction efficiency was expressed via total withanolide content (Twc) and withanolide S content. This article is protected by copyright. All rights reserved.
Research Interests:
Chemistry, Analytical Chemistry, Phytochemistry, Chromatography, Medicine, and 12 moreQuality Control, Separation Science, Withania Somnifera, Withanolides, Plant extracts, Reproducibility of Results, Densitometry, Withania, Quntitative Thin Layer Chromatography, Thin Layer Chromatography, Solvents, and Plant Leaves
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Research Interests:
Research Interests:
Liver transplantation (LTx) is the best treatment for he-patocellular carcinoma (HCC), but should be offered only to selected patients. The usual procedure is to transplant only for small and uni-lobular tumors. The aim of this pa-per is... more
Liver transplantation (LTx) is the best treatment for he-patocellular carcinoma (HCC), but should be offered only to selected patients. The usual procedure is to transplant only for small and uni-lobular tumors. The aim of this pa-per is to verify whether the actual ...