1. Kokand State Pedagogical Institute, Turon Str. 23, Kokand 713000, Uzbekistan
2. Analytical Department, Institute of Chemistry, Slovak Academy of Sciences, Dúbravská Cesta 9, SK-845 38 Bratislava, Slovakia
3. Tashkent Institute of Irrigation and Agricultural Mechanization Engineers, National Research University, Kori Niyazov Str. 39, Tashkent 100000, Uzbekistan
4. Institute of the Chemistry of Plant Substances, Uzbekistan Academy of Sciences, M. Ulugbek Str. 77, Tashkent 100170, Uzbekistan
5. Institute of Pharmacy and Molecular Biotechnology, Heidelberg University, 69120 Heidelberg, Germany