Abstract:In order to study the release behavior of limonene, a characteristic aroma component of tangerine peel, a purge and trap-gas chromatography/mass spectrometry (P & T-GC/MS) method was established to analyze the content of limonene in tangerine peel. Based on this method, the limonene was investigated at different temperatures. The release behavior of tangerine peel was fitted with dynamic models (zero-level model, first-level model, Higuchi model) to obtain suitable kinetic models and parameters. The results showed that: 1) The detection method based on the P & T-GC/MS combined technology had good linearity in the range of 0.06-0.30 μg/mL, the detection limit was 0.020 μg/mL, and the recovery of limonene was between 96.97% and 126.71%. The precision was 1.19%-4.70% (n = 5). 2) At each test temperature, the amount of limonene released in the sample increased with time, and the overall trend increased first and then slowly. 0-10 min, the overall release amount of limonene in the sample was higher, and the release rate was faster. 10-20 min, the release rate of limonene in the sample was significantly reduced. 20-65 min, the limonene in the sample was basically no longer released. 3) The first-order release model could better describe the release behavior of limonene in samples at different temperatures. The model fitting correlation coefficient R2 was between 0.906 and 0.997, and the activation energy of limonene release was 31.71 kJ/mol.