Characterization of Volatile Compounds in Four Different <i>Rhododendron</i> Flowers by GC×GC-QTOFMS
Volatile compounds in flowers of <i>Rhododendron delavayi</i>, <i>R. agastum</i>, <i>R. annae</i>, and <i>R. irroratum</i> were analyzed using comprehensive two-dimensional gas chromatography-mass spectrometry (GC×GC) coupled with high-resolut...
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| Format: | Article |
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MDPI AG
2019-09-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/24/18/3327 |
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| author | Chen-Yu Qian Wen-Xuan Quan Zhang-Min Xiang Chao-Chan Li |
| author_facet | Chen-Yu Qian Wen-Xuan Quan Zhang-Min Xiang Chao-Chan Li |
| author_sort | Chen-Yu Qian |
| collection | DOAJ |
| description | Volatile compounds in flowers of <i>Rhododendron delavayi</i>, <i>R. agastum</i>, <i>R. annae</i>, and <i>R. irroratum</i> 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 <i>Rhododendron</i> 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 <i>R. irroratum</i> compared to in the other three species, while isopulegol is only found in <i>R. irroratum</i> and <i>R. agastum</i>. |
| first_indexed | 2024-12-14T09:51:31Z |
| format | Article |
| id | doaj.art-c094a9c0ceef423bb73d3f5caf442fae |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-12-14T09:51:31Z |
| publishDate | 2019-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-c094a9c0ceef423bb73d3f5caf442fae2022-12-21T23:07:30ZengMDPI AGMolecules1420-30492019-09-012418332710.3390/molecules24183327molecules24183327Characterization of Volatile Compounds in Four Different <i>Rhododendron</i> Flowers by GC×GC-QTOFMSChen-Yu Qian0Wen-Xuan Quan1Zhang-Min Xiang2Chao-Chan Li3Guangdong Provincial Key Laboratory of Emergency Test for Dangerous Chemicals/Guangdong Engineering and Technology Research Center for Ambient Mass Spectrometry, Guangdong Institute of Analysis, Guangzhou 510070, ChinaGuizhou Provincial Key Laboratory of Mountainous Environmental Protection, Guizhou Normal University, Guiyang 550001, ChinaGuangdong Provincial Key Laboratory of Emergency Test for Dangerous Chemicals/Guangdong Engineering and Technology Research Center for Ambient Mass Spectrometry, Guangdong Institute of Analysis, Guangzhou 510070, ChinaGuizhou Provincial Key Laboratory of Mountainous Environmental Protection, Guizhou Normal University, Guiyang 550001, ChinaVolatile compounds in flowers of <i>Rhododendron delavayi</i>, <i>R. agastum</i>, <i>R. annae</i>, and <i>R. irroratum</i> 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 <i>Rhododendron</i> 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 <i>R. irroratum</i> compared to in the other three species, while isopulegol is only found in <i>R. irroratum</i> and <i>R. agastum</i>.https://www.mdpi.com/1420-3049/24/18/3327<i>Rhododendron</i> flowersvolatile compoundscomprehensive two-dimensional gas chromatography-mass spectrometryquadrupole time-of-flight mass spectrometryodor description |
| spellingShingle | Chen-Yu Qian Wen-Xuan Quan Zhang-Min Xiang Chao-Chan Li Characterization of Volatile Compounds in Four Different <i>Rhododendron</i> Flowers by GC×GC-QTOFMS Molecules <i>Rhododendron</i> flowers volatile compounds comprehensive two-dimensional gas chromatography-mass spectrometry quadrupole time-of-flight mass spectrometry odor description |
| title | Characterization of Volatile Compounds in Four Different <i>Rhododendron</i> Flowers by GC×GC-QTOFMS |
| title_full | Characterization of Volatile Compounds in Four Different <i>Rhododendron</i> Flowers by GC×GC-QTOFMS |
| title_fullStr | Characterization of Volatile Compounds in Four Different <i>Rhododendron</i> Flowers by GC×GC-QTOFMS |
| title_full_unstemmed | Characterization of Volatile Compounds in Four Different <i>Rhododendron</i> Flowers by GC×GC-QTOFMS |
| title_short | Characterization of Volatile Compounds in Four Different <i>Rhododendron</i> Flowers by GC×GC-QTOFMS |
| title_sort | characterization of volatile compounds in four different i rhododendron i flowers by gc gc qtofms |
| topic | <i>Rhododendron</i> flowers volatile compounds comprehensive two-dimensional gas chromatography-mass spectrometry quadrupole time-of-flight mass spectrometry odor description |
| url | https://www.mdpi.com/1420-3049/24/18/3327 |
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