Back to Search
Start Over
Characterization of Volatile Compounds in Four Different Rhododendron Flowers by GC×GC-QTOFMS.
- Source :
-
Molecules (Basel, Switzerland) [Molecules] 2019 Sep 12; Vol. 24 (18). Date of Electronic Publication: 2019 Sep 12. - Publication Year :
- 2019
-
Abstract
- Volatile compounds in flowers of Rhododendron delavayi , R. agastum , R. annae , and R. irroratum were analyzed using comprehensive two-dimensional gas chromatography-mass spectrometry (GC×GC) coupled with high-resolution quadrupole time-of-flight mass spectrometry (QTOFMS). A significantly increased number of compounds was separated by GC×GC compared to conventional one-dimensional GC (1DGC), allowing more comprehensive understanding of the volatile composition of Rhododendron flowers. In total, 129 volatile compounds were detected and quantified. Among them, hexanal, limonene, benzeneacetaldehyde, 2-nonen-1-ol, phenylethyl alcohol, citronellal, isopulegol, 3,5-dimethoxytoluene, and pyridine are the main compounds with different content levels in all flower samples. 1,2,3-trimethoxy-5-methyl-benzene exhibits significantly higher content in R. irroratum compared to in the other three species, while isopulegol is only found in R. irroratum and R. agastum .
- Subjects :
- Acyclic Monoterpenes analysis
Aldehydes analysis
Chromatography, Gas
Cyclohexane Monoterpenes analysis
Gas Chromatography-Mass Spectrometry methods
Limonene analysis
Mass Spectrometry
Solid Phase Microextraction
Species Specificity
Flowers chemistry
Odorants analysis
Rhododendron chemistry
Volatile Organic Compounds analysis
Subjects
Details
- Language :
- English
- ISSN :
- 1420-3049
- Volume :
- 24
- Issue :
- 18
- Database :
- MEDLINE
- Journal :
- Molecules (Basel, Switzerland)
- Publication Type :
- Academic Journal
- Accession number :
- 31547401
- Full Text :
- https://doi.org/10.3390/molecules24183327