<i>In Vitro</i> Preliminary Evidences on the Antioxidant Properties of Biogenic Amines

Abstract

Antioxidant properties of the principal biogenic amines were determined in vitro by f our analytical methods — Folin Ciocalteu, DPPH, enzymatic and inhibition of lipid peroxidation —i n order to avoid possible measuring-method linked mistakes . Different results are obtained, depending on the parameters that each of them measures. The combination of t he data indicates that a ll examined amines show antioxidant characteristics : in particular, tyramine, serotonin, L-norepinephrine, (-)-epinephrine and dopamine owing to their (poly)phenolic structure too, while aliphatic polyamines-spermine, spermidine, putrescine and cadaverine - histamine, melatonin and tryptamine appear to act specifically on the oxygen-consuming species involved in the lipid peroxidation of polyunsaturated fatty acids.