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Keywords = 4-acetamido-7-mercapto-2,1,3-benzoxadiazole

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11 pages, 2477 KiB  
Article
A Facile Profiling Method of Short Chain Fatty Acids Using Liquid Chromatography-Mass Spectrometry
by Ha Eun Song, Hyo Yeong Lee, Su Jung Kim, Sung Hoon Back and Hyun Ju Yoo
Metabolites 2019, 9(9), 173; https://doi.org/10.3390/metabo9090173 - 28 Aug 2019
Cited by 43 | Viewed by 6296
Abstract
Short chain fatty acids (SCFAs) are the main products of dietary fibers that are not digested by the human body, and they have been shown to affect human metabolism and inflammation. The amount of SCFAs in the body is related to many human [...] Read more.
Short chain fatty acids (SCFAs) are the main products of dietary fibers that are not digested by the human body, and they have been shown to affect human metabolism and inflammation. The amount of SCFAs in the body is related to many human diseases, and studies have focused on elucidating their roles and target molecules in both metabolic and immune responses. Thus, the quantitation of SCFAs in biological samples becomes crucial in understanding their important roles in the human body. Herein, a facile profiling method of SCFAs using liquid chromatography-tandem mass spectrometry (LC-MS/MS) was developed and then applied to biological samples. C2-C6 SCFAs were derivatized while using 4-acetamido-7-mercapto-2,1,3-benzoxadiazole for 5 min. at room temperature prior to LC-MS/MS analysis, and characteristic fragmentation patterns and increased hydrophobicity after chemical derivatization enabled specific discrimination among 12 SCFAs. Derivatization was fast and reliable, and the reaction products were stable for a week at 4 °C. The developed method was applied to measure SCFAs in mouse feces, plasma, and human exhaled breath condensates. This fast and simple method can save labor and effort to profile SCFAs from various biological samples. Full article
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