Investigation of the Relationship between the Metabolic Profile of Tobacco Leaves in Different Planting Regions and Climate Factors Using a Pseudotargeted Method Based on Gas Chromatography/Mass Spectrometry

2013 ◽  
Vol 12 (11) ◽  
pp. 5072-5083 ◽  
Author(s):  
Yanni Zhao ◽  
Chunxia Zhao ◽  
Xin Lu ◽  
Huina Zhou ◽  
Yanli Li ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Metabolic Profile ◽  
Gas Chromatography Mass Spectrometry ◽  
Climate Factors ◽  
Tobacco Leaves ◽  
Chromatography Mass Spectrometry ◽  
The Relationship

scholarly journals Visualization of the Gas Chromatography/Mass Spectrometry Data of Muscat Ottonel Must and Wine Measurements

1999 ◽  
Vol 5 (3-4) ◽  
Author(s):  
T. Kovács ◽  
M. Kállay ◽  
K. Korány
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Mass Spectrometry Data ◽  
Gas Chromatography Mass Spectrometry ◽  
Alternative Evaluation ◽  
Evaluation Procedures ◽  
Chromatography Mass Spectrometry ◽  
Peak Areas ◽  
The Relationship ◽  
Retention Indexes

The lack of interpretation methods useful in evaluating the aroma-profiles of wines makes it necessary to thoroughly investigate alternative evaluation procedures. By adding three appropriate normal hydrocarbon standards to all sample extracts, measuring the Programmed Temperature Retention Indexes of the components and by normalizing the peak areas to that of the 1-alpha-Terpineol (in musts) or Benzeneethanol (in wines), the aroma features could be visualized. The relationship or identity of the aroma patterns could be deduced from the presence or absence of similar polygons in the -constellation-map" of the components.  

scholarly journals Metabolic profiles of Cuibi-1 and Zhongyan-100 flue-cured tobacco leaves in different growing regions by gas chromatography/mass spectrometry

2018 ◽  
Vol 5 (5) ◽  
pp. 180261 ◽  
Author(s):  
Bo Sun ◽  
Ai-Hong Zheng ◽  
Fen Zhang ◽  
Ke-Su Wei ◽  
Qing Chen ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Amino Acids ◽  
Gas Chromatography ◽  
Principal Component ◽  
Hierarchical Cluster ◽  
Gas Chromatography Mass Spectrometry ◽  
Metabolic Profiles ◽  
Tobacco Leaves ◽  
Chromatography Mass Spectrometry ◽  
Geographical Regions

The metabolic profiles of tobacco leaves of two differential Chinese cultivars from different growing regions were analysed using gas chromatography–mass spectrometry (GC–MS). The results of principal component analysis, partial least-squares discriminant analysis and hierarchical cluster analysis showed significant differences in metabolome among three groups, identified 24 differential metabolites, and analysed the metabolic pathway in which the metabolites were involved. Among them, 13 metabolites were associated with geographical regions, including seven organic and fatty acids, four carbohydrates and two secondary metabolites. Four amino acids and two monosaccharides were associated with cultivars and the remaining five metabolites were associated with both. The relationships among the differential metabolites and the distinct characteristics of environment and cultivar were further discussed. In addition, correlation analysis indicated that most of the differential carbohydrates were negatively correlated with the differential amino acids and organic acids. Taken together, this study demonstrates the metabolite differences between two cultivars in different regions, and highlights the effect of environment and cultivar on tobacco leaf metabolism.

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