Mosad A. Ghareeb

HPLC‐DAD‐ESI‐MS/MS analysis of fruits from Firmiana simplex (L.) and evaluation of their antioxidant and antigenotoxic properties

The secondary metabolites of the fruits of Firmiana simplex (L.) were analysed by LC‐DAD‐ESI‐MS/MS; furthermore, we evaluated their antioxidant and antigenotoxic properties.

Novel Egyptian bacterial strains exhibiting antimicrobial and antiaflatoxigenic activity

The aim of this study was is to isolate and characterize new Egyptian marine bacterial strains and to evaluate the antimicrobial, antioxidant and total phenolic content of their bioactive secondary metabolites. Eight bacterial strains were isolated from marine sediment samples collected from different areas in Red sea governorate, Egypt. Antifungal activity was recorded as zone inhibition of growth between the fungus and the organism tested and two bacterial isolates were selected (designated 21 and 30). These isolates significantly reduced fungal growth and AFB1 production especially the isolate 30. These promising isolates were selected and identified using molecular identification technique and identified as Brevundimonas and Bacillus. The crude extracts from the two bacteria were extracted and the biological activity of these crude extracts was studied. The crude extracts exhibited potent antimicrobial activities against a set of microbial pathogens as well as antioxidant activity and total phenolic content.