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Development of an analytical method to detect short-chain fatty acids by SPME-GC-MS in samples coming from an in vitro gastrointestinal model

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Abstract
Short chain fatty acids (SCFA) are end-products of intestinal bacterial fermentation. The concentrations of fermentation metabolites are closely related to the microbial activity that occurs in various digestive compartments. The fermentation products may vary qualitatively and quantitatively, especially within the colon. The Simulator of the Human Intestinal Microbial Ecosystem (SHIME), an in vitro dynamic and multicompartment model of the human intestinal tract, can be adapted to mimic the piglet gastrointestinal tract. In this context, a quantitative method, based on solid phase microextraction gas chromatography coupled to mass spectrometry (SPME-GC-MS), was developed for the determination of seven short chain fatty acids, i.e. acetic, propionic, butyric, isobutyric, valeric, isovaleric and hexanoic acids, in samples coming from this experimental in vitro gastrointestinal model. The advantage of the SPME-GC-MS technique is that the seven compounds could be determined in a single run, after a simple and rapid sample treatment, without any other extraction than the automatic SPME. The developed method was validated in accordance to the European and US FDA guidelines and showed good specificity/selectivity. In addition, limits of detection and quantification ranged from 8 to 72 mg L-1 and from 16 to 144 mg L-1, respectively. Two internal quality control samples spiked at different concentrations were analyzed to assess the trueness of the developed method, which ranged between 97.7 and 122.4% of the expected value, for the seven compounds analyzed. The method was successfully applied to twenty samples coming from a gastrointestinal model, with different inocula. The developed method might be used as a general method for measuring SCFA in biological samples.
Keywords
Short chain fatty acids, SPME-GC-MS, Weaned piglet, Gastrointestinal model, SOLID-PHASE MICROEXTRACTION, DYNAMIC GUT MODEL, DIETARY FIBER, FERMENTATION, MICROBIOTA, IMPACT, TRACT, ENVIRONMENT, INTESTINE

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MLA
Douny, Caroline, et al. “Development of an Analytical Method to Detect Short-Chain Fatty Acids by SPME-GC-MS in Samples Coming from an in Vitro Gastrointestinal Model.” JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES, vol. 1124, 2019, pp. 188–96.
APA
Douny, C., Dufourny, S., Brose, F., Verachtert, P., Rondia, P., Lebrun, S., … Scippo, M.-L. (2019). Development of an analytical method to detect short-chain fatty acids by SPME-GC-MS in samples coming from an in vitro gastrointestinal model. JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES, 1124, 188–196.
Chicago author-date
Douny, Caroline, Sandrine Dufourny, Francois Brose, Pauline Verachtert, Pierre Rondia, Sarah Lebrun, Massimo Marzorati, Nadia Everaert, Veronique Delcenserie, and Marie-Louise Scippo. 2019. “Development of an Analytical Method to Detect Short-Chain Fatty Acids by SPME-GC-MS in Samples Coming from an in Vitro Gastrointestinal Model.” JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES 1124: 188–96.
Chicago author-date (all authors)
Douny, Caroline, Sandrine Dufourny, Francois Brose, Pauline Verachtert, Pierre Rondia, Sarah Lebrun, Massimo Marzorati, Nadia Everaert, Veronique Delcenserie, and Marie-Louise Scippo. 2019. “Development of an Analytical Method to Detect Short-Chain Fatty Acids by SPME-GC-MS in Samples Coming from an in Vitro Gastrointestinal Model.” JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES 1124: 188–196.
Vancouver
1.
Douny C, Dufourny S, Brose F, Verachtert P, Rondia P, Lebrun S, et al. Development of an analytical method to detect short-chain fatty acids by SPME-GC-MS in samples coming from an in vitro gastrointestinal model. JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES. 2019;1124:188–96.
IEEE
[1]
C. Douny et al., “Development of an analytical method to detect short-chain fatty acids by SPME-GC-MS in samples coming from an in vitro gastrointestinal model,” JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES, vol. 1124, pp. 188–196, 2019.
@article{8632335,
  abstract     = {Short chain fatty acids (SCFA) are end-products of intestinal bacterial fermentation. The concentrations of fermentation metabolites are closely related to the microbial activity that occurs in various digestive compartments. The fermentation products may vary qualitatively and quantitatively, especially within the colon. The Simulator of the Human Intestinal Microbial Ecosystem (SHIME), an in vitro dynamic and multicompartment model of the human intestinal tract, can be adapted to mimic the piglet gastrointestinal tract. In this context, a quantitative method, based on solid phase microextraction gas chromatography coupled to mass spectrometry (SPME-GC-MS), was developed for the determination of seven short chain fatty acids, i.e. acetic, propionic, butyric, isobutyric, valeric, isovaleric and hexanoic acids, in samples coming from this experimental in vitro gastrointestinal model. The advantage of the SPME-GC-MS technique is that the seven compounds could be determined in a single run, after a simple and rapid sample treatment, without any other extraction than the automatic SPME. The developed method was validated in accordance to the European and US FDA guidelines and showed good specificity/selectivity. In addition, limits of detection and quantification ranged from 8 to 72 mg L-1 and from 16 to 144 mg L-1, respectively. Two internal quality control samples spiked at different concentrations were analyzed to assess the trueness of the developed method, which ranged between 97.7 and 122.4% of the expected value, for the seven compounds analyzed. The method was successfully applied to twenty samples coming from a gastrointestinal model, with different inocula. The developed method might be used as a general method for measuring SCFA in biological samples.},
  author       = {Douny, Caroline and Dufourny, Sandrine and Brose, Francois and Verachtert, Pauline and Rondia, Pierre and Lebrun, Sarah and Marzorati, Massimo and Everaert, Nadia and Delcenserie, Veronique and Scippo, Marie-Louise},
  issn         = {1570-0232},
  journal      = {JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES},
  keywords     = {Short chain fatty acids,SPME-GC-MS,Weaned piglet,Gastrointestinal model,SOLID-PHASE MICROEXTRACTION,DYNAMIC GUT MODEL,DIETARY FIBER,FERMENTATION,MICROBIOTA,IMPACT,TRACT,ENVIRONMENT,INTESTINE},
  language     = {eng},
  pages        = {188--196},
  title        = {Development of an analytical method to detect short-chain fatty acids by SPME-GC-MS in samples coming from an in vitro gastrointestinal model},
  url          = {http://dx.doi.org/10.1016/j.jchromb.2019.06.013},
  volume       = {1124},
  year         = {2019},
}

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