Elemental profiling and geographical differentiation of saffron (Crocus sativusL.) using inductively coupled plasma-optical emission spectroscopy (ICP-OES) and principal component analysis

•Little variations were revealed among studied sites confirming the homogeneity of the saffron produced in Morocco.•PCA, is likely to be useful to discriminate saffron origin can also be applied for Moroccan saffron.•This study confirms that significant differences in element content exist among saffron with different countries of origin.