[1] Szent Istvan Univ, Fac Food Sci, Dept Food Engn, Menesi St 44, H-1118 Budapest, Hungary
[2] Univ Pannonia, Fac Engn, Soos Erno Water Technol Res Ctr, Ullo Ut, H-3 Nagykanizsa, Hungary
[3] Szent Istvan Univ, Fac Food Sci, Dept Refrigerat & Livestock Prod Technol, Menesi St 43-45, H-1118 Budapest, Hungary