The effect of cold plasma on crocin esters and volatile oils of saffron was studied for the first time. After the treatments, (Ar, Ar/5% O2 and Ar/10% O2 at 8 and 12kV of voltage), a decrease in crocin esters and saffranal and an increase in isophorone and 4-ketoisophorone was observed. After 4min,