Headspace solid-phase microextraction-gas chromatography-mass spectrometry characterization of propolis volatile compounds

- A HS-SPME-GC-MS method was developed for the analysis of propolis volatile compounds.
- Ninety-nine constituents were identified in propolis from different Italian regions.
- Aromatic compounds and sesquiterpenes were the most abundant constituents.
- This technique is a new and reliable tool for the study of this apiary product.