Longissimus dorsi muscle of adult pigs
Analyses were conducted using a LECO Pegasus(R) 4D instrument (LECO Corporation, St. Joseph, MI, USA). High-purity helium (> 99.999%) served as the carrier gas, at a steady flow rate of 1.0 mL/min. The detection of flavor compounds was carried out using the LECO Pegasus BT 4D system.