Characterization of Fruit Tea Beverages with the Pegasus® BT

Introduction

LECO's Pegasus BT is well suited for both targeted screening and non-targeted characterization of food and beverage samples. Here, fruit flavored teas (diet and regular) were characterized and compared in a non-targeted way. HS-SPME was used to collect the volatile and semi-volatile analytes that likely contribute to the aroma and flavor of the beverages. These analytes were subsequently separated and detected with GC-TOFMS. Deconvolution of the full m/z range data offers an additional level of information with mathematical separation to distinguish chromatographic coelutions. These aspects of the analysis provided the ability to identify and quantify numerous individual analytes and discover more about these samples.