Complex sentence: The elimination of non-nutritional compounds is a critical task for any organism, Flavin-containing monooxygenases is a family of enzymes that specializes in the oxidation of toxins in order to facilitate the excretion of these xenosubstrates from living organisms.
Split into simpler sentences: The elimination of non-nutritional compounds is a critical task for any organism. The flavin-containing monooxygenase (FMO) protein family specializes in the oxidation of toxins in order to facilitate the excretion of these xeno-substrates from living organisms.