[1] Czech Univ Life Sci Prague, Fac Agrobiol Food & Nat Resources, Dept Plant Prod, Prague, Czech Republic
[2] Czech Univ Life Sci Prague, Fac Agrobiol Food & Nat Resources, Dept Chem, Prague, Czech Republic
[3] Slovak Univ Agr, Fac Food Sci & Biotechnol, Dept Chem, Nitra, Slovakia
[4] Potato Res Inst, Havlickuv Brod, Czech Republic