Development of a screening method to determine the pattern of fermentation metabolites in faecal samples using on-line purge-and-trap gas chromatographic-mass spectrometric analysis

被引:54
作者
De Preter, Vicky [1 ,2 ]
Van Staeyen, Greet [1 ,2 ]
Esser, Diederik [1 ,2 ]
Rutgeerts, Paul [1 ,2 ]
Verbeke, Kristin [1 ,2 ]
机构
[1] Katholieke Univ Leuven Hosp, Dept Gastrointestinal Res, B-3000 Louvain, Belgium
[2] Katholieke Univ Leuven Hosp, Leuven Food Sci & Nutr Res Ctr, B-3000 Louvain, Belgium
关键词
Volatile organic compounds; Purge-and-trap; GC-TOF-MS; SOLID-PHASE MICROEXTRACTION; HUMAN LARGE-INTESTINE; CHAIN FATTY-ACIDS; BACTERIAL METABOLITES; HYDROGEN METABOLISM; HEALTHY-VOLUNTEERS; MARKERS RELEVANT; DIETARY-PROTEIN; HUMAN-COLON; IN-VITRO;
D O I
10.1016/j.chroma.2008.12.095
中图分类号
Q5 [生物化学];
学科分类号
070307 [化学生物学];
摘要
An on-line screening method to analyse volatile organic compounds (VOCs) in faecal samples was developed. VOCs were isolated from a standard solution or faecal samples using a purge-and-trap system and identified and quantified by GC-MS. The experimental conditions were optimised and the performance of the system was evaluated. Linear calibration curves were obtained with correlation coefficients of at least 0.992. RSDs within and between days were less than 10%. The method was successfully applied to the analysis of faecal samples, yielding 135 different volatile organic compounds identified in 11 faecal samples. Of those, 22 VOCs were found in all volunteers, whereas 34 VOCs were person-specific. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:1476 / 1483
页数:8
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