Physicochemical Characterization of the Pristine E171 Food Additive by Standardized and Validated Methods.

Last updated on 4-5-2021 by Jill Alexandre

Public Access


Peer reviewed scientific article



E171 (titanium dioxide) is a food additive that has been authorized for use as a food colorant in the European Union. The application of E171 in food has become an issue of debate, since there are indications that it may alter the intestinal barrier. This work applied standardized and validated methodologies to characterize representative samples of 15 pristine E171 materials based on transmission electron microscopy (TEM) and single-particle inductively coupled plasma mass spectrometry (spICP-MS). The evaluation of selected sample preparation protocols allowed identifying and optimizing th…

QR code

QR code for this page URL