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J Chromatogr B Analyt Technol Biomed Life Sci

Title:		Profiling and characterization of volatile secretions from the European stink bug Graphosoma lineatum (Heteroptera: Pentatomidae) by two-dimensional gas chromatography/time-of-flight mass spectrometry
Author(s):		Sanda M; Zacek P; Streinz L; Dracinsky M; Koutek B;
Address:		"Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, 16610 Prague 6, Czech Republic"
Journal Title:		J Chromatogr B Analyt Technol Biomed Life Sci
Year:		2012
Volume:		20111206
Issue:
Page Number:		69 - 75
DOI:		10.1016/j.jchromb.2011.11.043
ISSN/ISBN:		1873-376X (Electronic) 1570-0232 (Linking)
Abstract:		"An efficient method combining the headspace solid-phase microextraction (HS-SPME) sampling procedure and comprehensive two-dimensional gas-chromatography/time-of-flight mass spectrometry (GCxGC/TOF-MS) was established to study the volatile secretion components of stink bugs (Heteroptera: Pentatomidae). The combined power of this approach is illustrated by the identification of fifty-seven compounds in the secretion of a European stink-bug representative, Graphosoma lineatum. (E)-4-oxohex-2-enal and (E)-dec-2-enal were found to be the major components in the adult bug secretions followed by lower amounts of n-alkenal (C(5)-C(1)(2)), n-alkenyl acetate (C(5)-C(1)(1)), n-alkane (C(1)(1)-C(1)(7)) homologs, dienals and other compounds. More than thirty known compounds have been identified that had not been described before in G. lineatum adults. Of these compounds, (E)-4-oxohex-2-enal is of particular interest, since its isolation and identification, while calling some previous reports into question, clearly demonstrates a potential ability of our approach to yield artifact-free secretion profiles"
Keywords:		Aldehydes/analysis Alkenes/analysis Animals Female Gas Chromatography-Mass Spectrometry/*methods Heteroptera/*chemistry/physiology Male Odorants/analysis Solid Phase Microextraction/methods Volatile Organic Compounds/*analysis;
Notes:		"MedlineSanda, Miloslav Zacek, Petr Streinz, Ludvik Dracinsky, Martin Koutek, Bohumir eng Research Support, Non-U.S. Gov't Netherlands 2011/12/27 J Chromatogr B Analyt Technol Biomed Life Sci. 2012 Jan 15; 881-882:69-75. doi: 10.1016/j.jchromb.2011.11.043. Epub 2011 Dec 6"