Standarized tomato extract characteristics STE is a water-soluble tomato concentrate, free of lycopene and fats, which contains 37 biologically active compounds of well-known structure. These bioactive compounds contain nucleosides (adenosine, cytidine, guanosine, inosine, AMP, GMP), polyphenols including flavonoids (rutin, quercetin, kemferol, luteoline, naryngenin) and phenolic acids (chlorogenic, coffee, p-coumar, ferulic).