Similarities and differences of the volatile profiles of six spices explored by Proton Transfer Reaction Mass Spectrometry.
Food Chem
; 271: 318-327, 2019 Jan 15.
Article
en En
| MEDLINE
| ID: mdl-30236683
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.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Espectrometría de Masas
/
Especias
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Compuestos Orgánicos Volátiles
Tipo de estudio:
Prognostic_studies
Idioma:
En
Revista:
Food Chem
Año:
2019
Tipo del documento:
Article
Pais de publicación:
Reino Unido