EN
Interactions between NO3- or NO2- and the substrates of soybean oil enzymatic digestion were investigated using a simple in vitro experimental model. The buffers containing soybean oil, enzyme (pancreatin) and NO3- or NO2- were hydrolysed and then dialysed. The contents of NO3-/NO2- were determined by Griess method. NO3- and NO2- were found to interact with soybean oil and with pancreatin, the enzyme responsible for fat digestion.