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Article
2022
Microbial incubations of 8‐phenyloctanoic acid and furan fatty acids in rumen fluid
Microbial incubations of 8‐phenyloctanoic acid and furan fatty acids in rumen fluid
Abstract (English)
Aims: The digestive tract of ruminants is specialized in the digestion of various plant
components. One of the largest parts of the stomach is the so-called rumen, which
contains a large number of micro-organisms that may degrade or modify fatty acids,
for example by β-oxidation, chain elongation and/or hydrogenation.
Methods and Results: Here we performed incubation experiments with less com-
mon fatty acids by in vitro incubations with rumen fluid of fistulated cows for 24 h.
Sample extracts were analysed by gas chromatography with mass spectrometry. As
substrates, we selected one phenyl fatty acid and four furan fatty acids (FuFAs). All
studied fatty acids were degraded by β-oxidation (two or three chain-shortening
steps) while chain elongation or saturation of the aromatic part (terminal phenyl or
central furan moiety) was not observed in any case.
Conclusions: The percentage of β-oxidation products was low, especially in the case
of the FuFAs. This could be due to the rather long carbon number of FuFAs (19–22
carbon atoms). In addition, compound-specific differences in the degradation rates
were observed in our experiments.
Significance and Impact of the Study: Our results produce evidence that FuFAs,
which are valuable antioxidants that are known to be present in various feed items of
the cow, can be effectively passed on the rumen into the milk.
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Published in
Journal of applied microbiology, 133 (2022), 6, 3669-3677.
https://doi.org/10.1111/jam.15804.
ISSN: 1365-2672.
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630 Agriculture
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@article{Wiedmaier‐Czerny2022,
url = {https://hohpublica.uni-hohenheim.de/handle/123456789/16361},
doi = {10.1111/jam.15804},
author = {Wiedmaier‐Czerny, Nina and Blumberg, Olga and Schulz, Tobias et al.},
title = {Microbial incubations of 8‐phenyloctanoic acid and furan fatty acids in rumen fluid},
journal = {Journal of applied microbiology},
year = {2022},
volume = {133},
number = {6},
}