Electrochemical Properties of Compounds Present in Saffron

Abstract

Electrochemical properties of safranal and crocin, which are present in saffron spice, were studied at glassy carbon (GCE) and boron-doped diamond (BDD) electrodes in various organic and aqueous electrolytes. Both compounds exhibited oxidation signals, which can be used for their possible analytical determination. In the case of safranal, the sensitivity of the detection was higher in organic solvents with the addition of LiClO4 than in aqueous electrolytes. More intensive current peaks were obtained at the GCE in acetonitrile than at the BDD. A linear range of 1−300 µmol L−1 of safranal was attained at the GCE in organic media.