Antioxidant properties of desferrioxamine E, a new hydroxamate antioxidant

Antioxidant properties of desferrioxamine E, a cyclic trihydroxamate produced by microorganisms, were tested and compared to those of desferrioxamine B and butylated hydroxyanisole (BHA). Desferrioxamine E exhibited significant antioxidant effects in linoleic acid emulsions as well as in emulsions of linoleic acid and β‐carotene. In concentrations of 100 ppm, the effect of both desferrioxamines in linoleic acid emulsion was equal to that of BHA. The antioxidant activity of the desferrioxamines in emulsions of β‐carotene and linoleic acid was significantly higher than that of BHA. In addition, the initial rate of β‐carotene destruction was significantly lower when desferrioxamines were added to the emulsion.