• Publications
  • Influence
Evaluation of antioxidant activity, total phenols and phenolic compounds in thyme (Thymus vulgaris L.), sage (Salvia officinalis L.), and marjoram (Origanum majorana L.) extracts
The antioxidant properties and total phenolic of different extracting solvents of thyme, sage, and marjoram were examined using the stable 2,2-diphenyl-1-picrylhydrazyl-hydrate (DPPH) free radicalExpand
Antioxidant and antimicrobial activities of essential oil and extracts of fennel (Foeniculum vulgare L.) and chamomile (Matricaria chamomilla L.)
Essential oil and extracts of two Egyptian plants, fennel and chamomile were examined for their antioxidant and antimicrobial activities. The essential oil for fennel seeds and chamomile flowers wereExpand
Carbon/nitrogen homeostasis control in cyanobacteria
ABSTRACT Carbon/nitrogen (C/N) balance sensing is a key requirement for the maintenance of cellular homeostasis. Therefore, cyanobacteria have evolved a sophisticated signal transduction networkExpand
Kinetic studies of degradation of saffron carotenoids encapsulated in amorphous polymer matrices.
Kinetic studies on degradation of saffron water soluble carotenoids (mainly crocins) encapsulated in three different amorphous matrices (pullulan and two polyvinylpyrrolidone, PVP, samples differingExpand
Biology of Endophytic Fungi
ion; it is believed to have antioxidant activity 11 times greater than trolox, a vitamin E derivative (Strobel et al. 2002, Harper et al. 2003). The endophytic Cephalosporium sp. IFB-E001 andExpand
Biodiversity and antimicrobial activity of endophytes associated with Egyptian medicinal plants
One-hundred and thirty-two endophytic strains were isolated from 18 medicinal plants from Saint Katherine Protectorate, Egypt. Some of the endophytes were identified to genus or species level usingExpand
5-Physico-chemical and oxidative stability characteristics of roselle ( Hibiscus sabdariffa L . ) seed oil as by-product
Certain density characteristics of roselle (Hibiscus sabdariffa L.) seeds including 1000-seed and hectoliter weights were determined; average of each determination was 32.2 g and 68.55 kg,Expand
PII-like signaling protein SbtB links cAMP sensing with cyanobacterial inorganic carbon response
Significance Life on Earth depends on photosynthetic CO2 fixation to form organic carbon. This process evolved in cyanobacteria and was later conveyed to eukaryotes, giving rise to plastids in algaeExpand
Biological Evaluation of Endophytic Fungus, Chaetomium globosum JN711454, as Potential Candidate for Improving Drug Discovery
The main objective of this research work focused on investigating the biological and chemical aspects of endophytic fungus Chaetomium globosum, for pharmaceutical purposes to improve the drugExpand
Interaction of N‐acetyl‐l‐glutamate kinase with the PII signal transducer in the non‐photosynthetic alga Polytomella parva: Co‐evolution towards a hetero‐oligomeric enzyme
During evolution, several algae and plants became heterotrophic and lost photosynthesis; however, in most cases, a nonphotosynthetic plastid was maintained. Among these organisms, the colourless algaExpand
...
1
2
3
4
5
...