Volatile Constituents throughout Brassica oleracea L. Var. acephala Germination

• Type: Article in International Scientific Journal
• Date: 2009

Authors

Fatima Fernandes (Author) Other; de Pinho, PG (Author) Other; Patricia Valentao (Author) FFUP; Jose A Pereira (Author) Other; Paula B Andrade (Author) FFUP

Journal

Title: Journal of Agricultural and Food Chemistry

Vol. 57 No. 19

Pages: 6795-6802

ISSN: 0021-8561

Publisher: American Chemical Society

Indexing

ISI Web of Knowledge - 29 Citations

Scopus - 32 Citations

Pubmed / Medline

Scientific classification

FOS: Agrarian Sciences > Other Agrarian Sciences

CORDIS: Health sciences

Other information

Authenticus ID: P-003-GSC

DOI: 10.1021/jf901532m

Resumo (PT): In this work, the volatile composition of kale (Brassica oleracea L. var. acephala) and its variation during germination were monitored during the first 9 days of seedling development by headspace solid-phase microextraction (HS-SPME) combined with gas chromatography/ion trap−mass spectrometry (GC/IT-MS). Differences were found among the materials in the distinct analyzed periods. A total of 66 volatile compounds, distributed in several chemical classes, were determined: alcohols, carbonyl compounds (ketones, aldehydes, and esters), norisoprenoids, and terpenes, among others, sulfur compounds being the most abundant group in seeds and sprouts that exhibited allyl isothiocyanate as the major compound. Leaves of fully developed ground plant had the highest content of norisoprenoids, alcohols, and carbonyl compounds; in opposition, they showed lower levels of sulfur compounds, suggesting that these are important molecules for the development of kale, whereas the others are produced mainly during its growth. <br> <br> <a target="_blank" href="http://pubs.acs.org/doi/abs/10.1021/jf901532m"> Texto integral</a> <br> <br>

Abstract (EN): In this work, the volatile composition of kale (Brassica oleracea L. var. acephala) and its variation during germination were monitored during the first 9 days of seedling development by headspace solid-phase microextraction (HS-SPME) combined with gas chromatography/ion trap-mass spectrometry (GC/IT-MS). Differences were found among the materials in the distinct analyzed periods. A total of 66 volatile compounds, distributed in several chemical classes, were determined: alcohols, carbonyl compounds (ketones, aldehydes, and esters), norisoprenoids, and terpenes, among others, sulfur compounds being the most abundant group in seeds and sprouts that exhibited allyl isothiocyanate as the major compound. Leaves of fully developed ground plant had the highest content of norisoprenoids, alcohols, and carbonyl compounds; in opposition, they showed lower levels of sulfur compounds, suggesting that these are important molecules for the development of kale, whereas the others are produced mainly during its growth.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8