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The aquatic environment of the Red Sea is facing many threats resulting from land-based activities. The aim of the present study was to measure the concentrations of polycyclic aromatic hydrocarbons (PAHs) in Red Sea shrimp and to assess the health risk resulting from their consumption. Gas chromatography/fl ame ionization detection was used for PAH detection. Polycyclic aromatic hydrocarbons exceeded...
Glutamine deamidating enzyme from Penicillium politans NRC510 catalyzed deamidation of glutamine to glutamic acid and ammonia. The enzyme was partially purified by a simple method of heating and Sephadex G-100 gel filtration. This procedure yields the partially purified enzyme with a 25% recovery of the activity in crude extracts. Specific activity of this partially purified enzyme is 133 U/mg. The...
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