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http://hdl.handle.net/2445/185914
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DC Field | Value | Language |
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dc.contributor.author | Freire, Rafael | - |
dc.contributor.author | Mego, Marianela | - |
dc.contributor.author | Fontes de Oliveira, Luciana | - |
dc.contributor.author | Mas Garcia, Silvia | - |
dc.contributor.author | Azpiroz, Fernando | - |
dc.contributor.author | Marco Colás, Santiago | - |
dc.contributor.author | Pardo Martínez, Antonio | - |
dc.date.accessioned | 2022-05-20T14:43:28Z | - |
dc.date.available | 2022-05-20T14:43:28Z | - |
dc.date.issued | 2022-01-22 | - |
dc.identifier.issn | 1424-8220 | - |
dc.identifier.uri | http://hdl.handle.net/2445/185914 | - |
dc.description.abstract | The impact of diet and digestive disorders in flatus composition remains largely unexplored. This is partially due to the lack of standardized sampling collection methods, and the easy atmospheric contamination. This paper describes a method to quantitatively determine the major gases in flatus and their application in a nutritional intervention. We describe how to direct sample flatus into Tedlar bags, and simultaneous analysis by gas chromatography-thermal conductivity detection (GC-TCD). Results are analyzed by univariate hypothesis testing and by multilevel principal component analysis. The reported methodology allows simultaneous determination of the five major gases with root mean measurement errors of 0.8% for oxygen (O2), 0.9% for nitrogen (N2), 0.14% for carbon dioxide (CO2), 0.11% for methane (CH4), and 0.26% for hydrogen (H2). The atmospheric contamination was limited to 0.86 (95% CI: [0.7-1.0])% for oxygen and 3.4 (95% CI: [1.4-5.3])% for nitrogen. As an illustration, the method has been successfully applied to measure the response to a nutritional intervention in a reduced crossover study in healthy subjects. | - |
dc.format.extent | 15 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | MDPI | - |
dc.relation.isformatof | Reproducció del document publicat a: https://doi.org/10.3390/s22030838 | - |
dc.relation.ispartof | Sensors, 2022, vol. 22, num. 3, p. 838-852 | - |
dc.relation.uri | https://doi.org/10.3390/s22030838 | - |
dc.rights | cc-by (c) Freire, Rafael et al., 2022 | - |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | - |
dc.source | Articles publicats en revistes (Enginyeria Electrònica i Biomèdica) | - |
dc.subject.classification | Dieta | - |
dc.subject.classification | Cromatografia de gasos | - |
dc.subject.classification | Flatulència | - |
dc.subject.other | Diet | - |
dc.subject.other | Gas chromatography | - |
dc.subject.other | Flatulence | - |
dc.title | Quantitative GC-TCD measurements of major flatus components: a preliminary analysis of the diet effect | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 717723 | - |
dc.date.updated | 2022-05-20T14:43:28Z | - |
dc.relation.projectID | info:eu-repo/grantAgreement/EC/H2020/712754/EU//BEST | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Enginyeria Electrònica i Biomèdica) Publicacions de projectes de recerca finançats per la UE Articles publicats en revistes (Institut de Bioenginyeria de Catalunya (IBEC)) |
Files in This Item:
File | Description | Size | Format | |
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717723.pdf | 1.36 MB | Adobe PDF | View/Open |
This item is licensed under a Creative Commons License