1 | Department of Analytical Chemistry and Physical Chemistry, University of Food Technologies, 26 Maritza Blvd., Plovdiv, Bulgaria |
2 | Department of Organic Chemistry and Inorganic Chemistry, University of Food Technologies, 26 Maritza Blvd., Plovdiv, Bulgaria |
3 | Department of Biotechnology, University of Food Technologies, 26 Maritza Blvd., Plovdiv, Bulgaria |