Effective SPE Strategies for LC-MS Determination of Sudan Dyes in Chili Products
Recently there have been numerous reports regarding the
potentially dangerous use of Sudan dyes for colorizing food products .
For example, Sudan I is an intense orange dye useful as a coloring
agent for plastics and other industrial products but not intended for
use in foods. However, Sudan I has been found in red chili products and
in tomato based products sold for human consumption. Sudan dyes are
aromatic azo compounds and are presumed to be carcinogenic. Therefore,
there is an urgent need for improved methods for determination of these
compounds in foods.