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Identification of mono- and dihydroxy bile acids in human feces by gas-liquid chromatography and mass spectrometry

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Eneroth, Peter, Gordon, Bruce, Ryhage, Ragnar, Sjövall, Jan·1966·Journal of Lipid Research

Abstract

The mono- and disubstituted cholanoic acids present in human feces have been investigated. Extracts of feces were fractionated on silicic acid column and individual bile acids were isolated by preparative thin-layer chromatography. The isolated compounds were studied by gas-liquid chromatography of the methyl esters, partial trimethylsilyl ethers, oxidation products, and trifluoroacetates. The probable structures deduced were confirmed by gas chromatography-mass spectrometry and by comparisons with authentic compounds. The following derivatives of 5 Beta-cholanoic acid not previously isolated from human feces were identified: 3,12-diketo, 3-keto-12alpha-hydroxy, 3alpha,12 Beta-dihydroxy, 3 Beta,12 Beta-dihydroxy, 3-keto-7alpha-hydroxy, 3alpha-hydroxy-7-keto, 3 Beta,7alpha-dihydroxy, 3alpha,7alpha-dihydroxy, and 3alpha,7 Beta-dihydroxy. The presence of 3-keto-, 3 Beta-hydroxy-, 3alpha-hydroxy-, 3 Beta-hydroxy-12-keto-, 3alpha-hydroxy-12-keto-, 3 Beta,12alpha-dihydroxy-, and 3alpha,12alpha-dihydroxy-5 Beta-cholanoic acids was confirmed. Evidence was obtained for the presence of two bile acids having at least one hydroxyl group at a carbon atom other than C(3), C(7), or C(12).

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Metadata

Authors
Eneroth, P., Gordon, B., Ryhage, R., & Sjövall, J.
Venue
Journal of Lipid Research
Publisher
Elsevier BV
Published
1966-07
Volume
7
Issue
4
Pages
511-523
ISSN
0022-2275 (ISSN-L)
OpenAlex
W2187322304
Cited by
183
References
0
FWCI
32.15
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: Identification of mono- and dihydroxy bile acids in human feces by gas-liquid chromatography and mass spectrometry. https://app.cochat.ai/papers/10.1016/s0022-2275(20)39261-0
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Eneroth, P., Gordon, B., Ryhage, R., & Sjövall, J. (1966). Identification of mono- and dihydroxy bile acids in human feces by gas-liquid chromatography and mass spectrometry. Journal of Lipid Research. https://doi.org/10.1016/s0022-2275(20)39261-0

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