Degree of hydrothermal degradation in WSE was assessed by
analyzing the composition of two phenolic compounds typically
present in sunflower seeds, namely chlorogenic acid (CHA) and
one of its hydrolythic derivatives – caffeic acid (CA). Also, another
aspect of hydrothermal degradation in WSE was studied, namely
the decomposition (dehydration) of sugars to 5-HMF by measuring
amount of formed 5-HMF during extraction.