anteiso-Fatty Acids in Brussels Sprouts (Brassica oleracea var. gemmifera L.): Quantities, Enantioselectivities, and Stable Carbon Isotope Ratios

被引：21

作者：

Eibler, Dorothee ^{[1
]}

Seyfried, Carolin ^{[1
]}

Kaffarnik, Stefanie ^{[1
]}

Vetter, Walter ^{[1
]}

机构：

[1] Univ Hohenheim, Inst Food Chem 170B, D-70599 Stuttgart, Germany

来源：

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY | 2015年 / 63卷 / 40期

关键词：

Brussels sprout; branched-chain fatty acid; anteiso-fatty acid; enantiomer separation; stable carbon isotope ratio; MASS-SPECTROMETRY; GAS-CHROMATOGRAPHY; METHYL-ESTERS; DAIRY-PRODUCTS; CANCER-CELLS; CHAIN; SAMPLES; QUANTIFICATION; IDENTIFICATION; FRACTIONATION;

D O I：

10.1021/acs.jafc.5b03877

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

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 al5:0 and a17:0 were (S)-enantiopure in Brussels sprout samples. delta C-13 values (parts per thousand) of a17:0 in Brussels sprouts were comparable with those of palmitic acid, indicating no different source for both fatty acids.

引用

页码：8921 / 8929

页数：9

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