Comparison of free and bound volatile profiles of immature Litsea mollis fruits grown in five distinct regions of China

Immature Litsea mollis fruits (ILMFs) are widely used as cold appetizers and seasonings in China. The free bound volatile components of ILMFs from five distinct regions China were determined by gas chromatography-mass spectrometry (GC-MS) combined with headspace solid phase microextraction (SPME) the present work. results reveal sixty six free-form volatiles fifty two bound-form terpene hydrocarbons oxygenated terpenes dominate components. In addition, sixty-seven compounds found fruit for first time. α-pinene, eucalyptol, linalool, α,β-citral, geraniol citronellal, β-myrcene, α-citral, geraniol, citronellal eugenol major odor contributors ILMFs. Multivariate statistical analysis indicates that profiles Fujian Guangxi southern similar those Yunnan Sichuan southwestern similar. all floral, fruity herbaceous.