**Author details**

Dorota Szawara-Nowak1 , Danuta Zielińska2 , Henryk Zieliński1 and Małgorzata Wronkowska1\*

\*Address all correspondence to: m.wronkowska@pan.olsztyn.pl

1 Division of Food Sciences, Institute of Animal Reproduction and Food Research of the Polish Academy of Sciences, Olsztyn, Poland

2 Department of Chemistry, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
