1. Organic and Bioorganic Chemistry, Department of Chemistry; Bielefeld University; Universitätstaße 25 33615 Bielefeld Germany
2. Department of Microbiology, Faculty of Science; Helwan University; Ain Helwan, Helwan Cairo 11795 Egypt
3. Proteome and Metabolome Research, Department of Biology; Bielefeld University; Universitätstaße 25 33615 Bielefeld Germany