1. Similarities and differences of the volatile profiles of six spices explored by Proton Transfer Reaction Mass Spectrometry.
- Author
-
Silvis, I.C.J., Luning, P.A., Klose, N., Jansen, M., and van Ruth, S.M.
- Subjects
- *
SPICES , *VOLATILE organic compounds , *TERPENES , *ALDEHYDES , *ESTERS , *MASS spectrometry - Abstract
Highlights • Volatile composition of spices comprises primarily terpenes, aldehydes and esters. • Saffron and chili paprika showed distinct volatile profiles. • Overlap in terpenic compounds is shown for pepper, cinnamon and nutmeg. • The major compounds discriminating the six spices were determined. Abstract Aroma properties of spices are related to the volatile organic compounds (VOCs) present, which can provide distinct analytical signatures. The aim of the study was to examine similarity and diversity of VOC profiles of six common market spices (black/white pepper, chili paprika, cinnamon, nutmeg and saffron). The key volatiles were identified by PTR-TOFMS. Twelve samples per spice were subjected to PTR-Quadrupole MS (PTR-QMS) and Principal Component Analysis to compare the groups and examine diversity. With PTR-TOFMS, 101 volatile compounds were identified as total sum across all samples by mass and comparing them with literature data. Some spices comprised key character aroma compounds, e.g. cinnamaldehyde in cinnamon. For others, VOC groups, such as terpenes, acids and aldehydes topped the list. The PTR-QMS in combination with variables selection resulted in distinct PCA patterns for each spice. Variation within the spice groups was observed, but varied with the kind of spice. The results are valuable for future authentication studies. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF