Title: | Correlations between pulp properties of eucalyptus clones and leaf volatiles using automated solid-phase microextraction |
Author(s): | Zini CA; De Assis TF; Ledford EB; Dariva C; Fachel J; Christensen E; Pawliszyn J; |
Address: | "Department of Chemistry, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1" |
ISSN/ISBN: | 0021-8561 (Print) 0021-8561 (Linking) |
Abstract: | "Analysis of biogenic volatile organic compounds (BVOC) of 14 Eucalyptus clones has been performed using an automated headspace solid-phase microextraction (HS-SPME) coupled to gas chromatography (GC)/ion trap mass spectrometry (ITMS) method. Correlations between pulp properties of Eucalyptus clones and the BVOC of their leaf headspaces were studied. The compounds alpha-terpineol and the sesquiterpene beta-eudesmol were positively correlated with S5, a property related to the hemicelluose content in the pulp. Qualitative results obtained with automated HS-SPME were sufficient to group together the same species and related hybrids through cluster analysis and were confirmed through principal component analysis. A preliminary separation of the essential oils of Eucalyptus dunnii through comprehensive two-dimensional gas chromatography (GC x GC) showed approximately 580 peaks compared to approximately 60 in a typical GC/ITMS first-dimension chromatogram. The potential of HS-SPME coupled to GC x GC to improve the separation of Eucalyptus volatiles and other plant essential oils looks extremely promising for new applications of unsupervised learning methods" |
Keywords: | "Autoanalysis Breeding Chromatography, Gas Cyclohexane Monoterpenes Cyclohexenes Gas Chromatography-Mass Spectrometry Monoterpenes/analysis Oils, Volatile/chemistry Plant Leaves/*chemistry Plants/*chemistry/*genetics Selection, Genetic Sesquiterpenes, Eude;" |
Notes: | "MedlineZini, Claudia A De Assis, Teotonio F Ledford, Edward B Jr Dariva, Claudio Fachel, Jandyra Christensen, Eva Pawliszyn, Janusz eng Research Support, Non-U.S. Gov't 2003/12/24 J Agric Food Chem. 2003 Dec 31; 51(27):7848-53. doi: 10.1021/jf034799k" |