title: anteiso-Fatty Acids in Brussels Sprouts (Brassica oleracea var. gemmifera L.): Quantities, Enantioselectivities, and Stable Carbon Isotope Ratios.
abstract: anteiso-Fatty acids (aFAs) are a class of branched-chain fatty acids that are characterized by one methyl branch on the antepenultimate carbon of the straight acyl chain. aFAs are mainly produced by bacteria, and sources in vegetables are scarce. This study reports the concentrations of odd-numbered aFAs (a15:0-a21:0) in Brussels sprout buds. Selective enrichment followed by enantioselective gas chromatography with mass spectrometry in the selected ion monitoring mode revealed that both a15:0 and a17:0 were (S)-enantiopure in Brussels sprout samples. δ(13)C values (‰) of a17:0 in Brussels sprouts were comparable with those of palmitic acid, indicating no different source for both fatty acids.
authors.affiliation: Institute of Food Chemistry (170b), University of Hohenheim , Garbenstrasse 28, 70599 Stuttgart, Germany.
authors.forename: Dorothee
authors.initials: D
authors.lastname: Eibler
authors.affiliation: Institute of Food Chemistry (170b), University of Hohenheim , Garbenstrasse 28, 70599 Stuttgart, Germany.
authors.forename: Carolin
authors.initials: C
authors.lastname: Seyfried
authors.affiliation: Institute of Food Chemistry (170b), University of Hohenheim , Garbenstrasse 28, 70599 Stuttgart, Germany.
authors.forename: Stefanie
authors.initials: S
authors.lastname: Kaffarnik
authors.affiliation: Institute of Food Chemistry (170b), University of Hohenheim , Garbenstrasse 28, 70599 Stuttgart, Germany.
authors.forename: Walter
authors.initials: W
authors.lastname: Vetter
mesh_terms: D001937:Brassica / Q000737:chemistry*; D002247:Carbon Isotopes / Q000032:analysis; D005227:Fatty Acids / Q000737:chemistry*; D010936:Plant Extracts / Q000737:chemistry*; D013237:Stereoisomerism; D014675:Vegetables / Q000737:chemistry*
chemical_list: D002247:Carbon Isotopes; D005227:Fatty Acids; D010936:Plant Extracts
keywords: Brussels sprout; anteiso-fatty acid; branched-chain fatty acid; enantiomer separation; stable carbon isotope ratio