“…The samples of dried milk from different batches (Table 1) were evaluated to determine the protein content by mineralization (Kjeldahl‐Kjeltec Auto, 1030 Analyzer, Tecator, Solletuna, Sweden), fat content by the butyrometrical method (Černá & Cvak, 1986a) and the lactose content by polarization (Polarimeter AA 10 R, Optical Activity Ltd, Huntingdon, UK) (Černá & Cvak, 1986b).…”