Gas Chromatographic-Olfactometric Characterization of Key Aroma Compounds in Fresh and Frozen Lamb Meat using New Extraction Methods

Two different techniques for obtaining extracts representing the most relevant aroma chemicals from grilled lamb have been developed and applied to the elucidation of the gas chromatographic-olfactometric (GC-O) profiles of grilled lamb from fresh or frozen samples. The first one attempted to collect the aroma released during grilling; the second one, the aroma released during eating. The GC-O work was complemented with a thorough isolation and identification study comprising liquid chromatography and dual gas chromatography with simultaneous MS and olfactometric (GC-GC-O-MS) detection.