Differentiation of five pine species cultivated in Brazil based on chemometric analysis of their volatiles identified by gas chromatography-mass spectrometry

Journal of the Brazilian Chemical Society

Francisco A. Marques²  Gustavo Frensch²  Scheila R. M. Zaleski²  Noemi Nagata²  Beatriz H. L. N. Sales Maia²  Sonia M. N. Lazzari¹  Cesar A. Lenz¹  Arlene G. Corrêa¹ 

[1] ,Universidade Federal do Paraná Departamento de Química Curitiba PR ,Brazil

关键词: Pinus;    volatiles;    principal component analysis;    hierarchical component analysis;    chemotaxonomy;   

DOI  :  10.1590/S0103-50532012005000042

来源: SciELO

【 摘 要 】

The composition of the volatiles emitted by different trees has been successfully used as a marker in a wide variety of studies, such as chemotaxonomy. Characterization of the volatiles emitted by different species of Pinus has proven to be an important tool to understand the process of host-tree selection by herbivorous insects. The volatiles present in samples of the branches of five species of Pinus (P. caribaea, P. elliottii, P. maximinoi, P. patula and P. taeda) were collected by aeration, and the contents analyzed by gas chromatography using a flame ionization detector (GC-FID), applying non-polar and chiral column phases, and mass spectrometry (GC-MS) using a quadrupole mass analyzer. The relative composition of the different volatiles was used to perform a discriminant analysis among the five pine species, by means of cluster (HCA) and principal component (PCA) analyses.

【 授权许可】

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