Browsing by Author "Megahed B.M.H."

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    Chemical Composition and Biological Activity of Physalis peruviana L. [Chemische Zusammensetzung und biologische Aktivitt von Physalis peruvianaL.
    (Springer Verlag, 2019) El-Beltagi H.S.; Mohamed H.I.; Safwat G.; Gamal M.; Megahed B.M.H.; Faculty of Agriculture; Biochemistry Department; Cairo University; Giza; Cairo; Egypt; College of Agriculture and Food Sciences; Agricultural Biotechnology Department; King Faisal University; Alhassa; Saudi Arabia; Research Park (CURP); Cairo University; Giza; Cairo; Egypt; Faculty of Education; Department of Biological and Geological science; Ain shams University; Cairo; Egypt; Faculty of Biotechnology; October University for Modern Science and Art (MSA); Giza; Egypt
    Physalis peruviana L. belongs to the family Solanaceae and is considered as plant used for treating various diseases. The protective mechanism of Physalis consists of the ability to scavenge reactive oxygen species (ROS) and to enhance the antioxidant system in the human body. The ethanolic extract of Physalis peruviana fruits contains valuable and active compounds such as carotenoids, phenols, flavonoids, tannin, alkaloids, vitamins C, B3 and B6. Therefore, Physalis peruviana extract has antioxidant and antimicrobial activity against gram-positive and gram-negative bacteria. Gram-positive Bacillus cereus demonstrated higher susceptibility than gram-negative Escherichia coli and Pseudomonas typhimureum. Also, the extract showed positive effect on the fungus used (Aspergillus niger and Candida albicans). In addition, high concentrations of Physalis peruviana ethanolic extract (800 g/ml) exhibited significant anticancer activity against lung (A549) cells but slight effect against colorectal adenocarcinoma (Caco-2) cells. 2019, Springer-Verlag GmbH Deutschland, ein Teil von Springer Nature.
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    Evaluation of some chemical constituents, antioxidant, antibacterial and anticancer activities of beta Vulgaris L. Root
    (Parlar Scientific Publications, 2018) El-Beltagi H.S.; Mohamed H.I.; Megahed B.M.H.; Gamal M.; Safwat G.; Faculty of Agriculture; Biochemistry Department; Cairo University; Giza; Cairo; Egypt; Cairo University; Research Park (CURP); Giza; Cairo; Egypt; Faculty of Education; Department of Biological and Geological Science; Ain Shams University; Cairo; Egypt; Faculty of Biotechnology; October University for Modern Science and Art (MSA); Egypt
    Beta vulgaris is belonging to the family Chenopodiaceae and has several varieties with bulb colors ranging from yellow to red. Deep redcolored beet roots are the most popular for human consumption, both cooked and raw as salad or juice. The ethanolic extract of beetroots contains valuable and active compounds such as carotenoids, phenols, flavonoids, tannin, alkaloids, vitamins C, B3, B6 and B9. Therefore, beetroot extract has antioxidant and antimicrobial activity against gram positive and negative bacteria. Gram-positive bacteria Staphylococcus aureus and Bacillus cereus demonstrated higher susceptibility than Gramnegative Escherichia coli and Pseudomonas typhimureum. Beta vulgaris ethanolic extract exhibit significant anticancer activity against lung (A549) but slight effect against colorectal adenocarcinoma Caco-2 cell lines at the high concentrations of ethanolic extract (800 ?g/ml). � 2018 Malaysian Nature Society. All rights reserved.