1. Faculty of Economic Sciences, Department of Market and Consumption, University of Warmia and Mazury in Olsztyn, Oczapowskiego 2, 10-719 Olsztyn, Poland
2. Faculty of Food Science, Department of Dairy Science and Quality Management, University of Warmia and Mazury in Olsztyn, Oczapowskiego 7, 10-719 Olsztyn, Poland
3. Institute of Marketing, Department of Product Marketing, Poznań University of Economics and Business, al. Niepodleglosci 10, 61-875 Poznan, Poland
4. Institute of Quality Science, Department of Natural Science and Quality Assurance, Poznań University of Economics and Business, al. Niepodleglosci 10, 61-875 Poznan, Poland