香橼为芸香科柑橘属植物(Citrus wilsonii Tanaka)，本文对大孔树脂处理后香橼汁挥发性单萜烯碳氢化合物进行了定性定量分析。首先利用固相微萃取-气相色谱-质谱联机（SPME-GC-MS）和保留指数（RI）对香橼汁挥发性的单萜烯碳氢化合物进行定性，共鉴定出11种单萜。然后根据保留指数的定性结果，应用顶空-气相色谱-氢火焰离子检测器（HS-GC-FID）对八种单萜烯碳氢化合物α-蒎烯、β-蒎烯、β-月桂烯、β-水芹烯、α-萜烯、柠檬烯、γ-萜烯、异松油烯，采用部分外标法进行了定量分析。结果显示，脱苦处理后香橼汁顶空中八种物质的含量分别为90.95、27.5、26.22、8.37、4.17、843.46、107.66、4.24 ng/L，约为对照样品的十分之一，并且脱苦处理未改变各单萜烯碳氢化合物的比例，均表现为柠檬烯的含量最高，其次为γ-萜烯。

The monoterpene hydrocarbons in the headspace of Xiangyuan (Citrus wilsonii Tanaka) juice after debittering treatment by macroporous resin were identified and qualified. Eleven monoterpene hydrocarbons were identified by solid phase micro extraction gas chromatography-mass spectrometry (SPME-GC-MS) and rentation index (RI) which was calculated from n-alkane. Then, eight terpenes (α-Pinene, β-Pinene, β-Myrcene, β-Phellandrene, α-Terpinene, Limonene, γ-Terpinene, α-Terpinolene) were quantified by headspace-gas chromatography-flame ionization detector (HS-GC-FID) using partial external standards method. Results showed that the contents of the eight terpenes after debittering were 90.95, 27.5, 26.22, 8.37, 4.17, 843.46, 107.66 and 4.24 ng/L, respectively, and all values were about one tenth of the control. Moreover, the proportions of the substances were not changed by debittering. the limonene had the highest content, followed by γ-Terpinene.

香橼全果精深加工关键技术研究与产业化示范（BE2012403）