| Title: | Volatile composition of Brassica oleracea L. var. costata DC leaves using solid-phase microextraction and gas chromatography/ion trap mass spectrometry |
| Author(s): | de Pinho PG; Valentao P; Goncalves RF; Sousa C; Andrade PB; |
| Address: | "REQUIMTE/Servico de Farmacognosia, Faculdade de Farmacia da Universidade do Porto, R. Anibal Cunha 164, 4050-047 Porto, Portugal. pguedes@ff.up.pt" |
| Journal Title: | Rapid Commun Mass Spectrom |
| ISSN/ISBN: | 1097-0231 (Electronic) 0951-4198 (Linking) |
| Abstract: | "Volatile and semi-volatile components of internal and external leaves of Brassica oleracea L. var. costata DC, grown under different fertilization regimens, were determined by headspace solid-phase microextraction (HS-SPME) combined with gas chromatography/ion trap mass spectrometry (GC/ITMS). Forty-one volatiles and non-volatile components were formally identified and thirty others were tentatively identified. Qualitative and quantitative differences were noticed between internal and external leaves. In general, internal leaves exhibited more aldehydes and sulfur volatile compounds than external ones, and less ketone, terpenes and norisoprenoid compounds. The fertilization regimens influenced considerably the volatile profile. Fertilizations with higher levels of sulfur produced Brassica leaves with more sulfur volatiles. In opposition, N and S fertilization led to leaves with lower levels of norisoprenoids and terpenes" |
| Keywords: | Aldehydes/analysis/metabolism Brassica/*chemistry/metabolism Gas Chromatography-Mass Spectrometry/*methods Ketones/analysis/metabolism Norisoprenoids/analysis/metabolism Plant Leaves/chemistry/metabolism Solid Phase Microextraction/*methods Sulfur Compoun; |
| Notes: | "Medlinede Pinho, Paula Guedes Valentao, Patricia Goncalves, Rui F Sousa, Carla Andrade, Paula B eng England 2009/07/07 Rapid Commun Mass Spectrom. 2009 Aug; 23(15):2292-300. doi: 10.1002/rcm.4148" |
