1. Warsaw University of Technology, Faculty of Chemistry, Noakowskiego 3, 00-664 Warsaw, Poland, Research Institute of Vegetable Crops, Konstytucji 3 Maja 1/3, 96-100 Skierniewice, Poland, and Warmia and Masuria University, Department of Biology, Plac Łódzki 3, 10-718 Olsztyn, Poland