V. N. Karazin Kharkiv National University, Kharkiv State University of Food Technology and Trade, V. N. Karazin Kharkiv National University, V. N. Karazin Kharkiv National University, Kharkiv College of Trade and Economics of Kyiv National University of Trade and Economics, Kharkiv College of Trade and Economics of Kyiv National University of Trade and Economics and V. N. Karazin Kharkiv National University