A chemometric approach toward the detection and quantification of coffee adulteration by solid-phase microextraction using polymeric ionic liquid sorbent coatings

Bruna R. Toledo, Leandro W. Hantao, Tien D. Ho, Fabio Augusto, Jared L. Anderson

Index: J. Chromatogr. A. 1346 , 1-7, (2014)

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Abstract

• Chemical profiling of Coffea arabica by polymeric ionic liquid SPME is described. • Partial least squares regression correlated the aroma fingerprint to adulteration. • Compounds that contributed to the PLS model were identified and assigned. • Trace aroma volatiles exhibited a decisive role in the detection of coffee fraud.