Abstract
A possible pathway for the anaerobic utilization of benzoic acid by a methanogenic consortium is suggested. Cyclohexane carboxylic acid and 1-cyclohexene-1-carboxylic acid have been identified as intermediates before ring rupture. Surprisingly, 3-cyclohexene-1-carboxylic acid interferes with utilization of other cyclic acids. In addition, isobutyric acid or short chain acids containing carbon-carbon double bonds could not be used without induction periods of a week or longer. A number of volatile fatty acids (heptanoic, valeric, butyric, propanoic, and acetic) have been identified and are suggested intermediates.
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Abbreviations
- GLC:
-
gas-liquid chromatography
- CCA:
-
eyclohexane carboxylic acid
- 1-CCA:
-
1-cycloheoene-1-carboxylic acid
- 3-CCA:
-
3-cyclohexene-1-carboxylic acid
- VFA:
-
volatile fatty acid
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Contribution No. 1286-j, Division of Biology, Kansas State University, Manhattan, KS 66506. This work was supported in part by funds from the Kansas Agricultural Experiment Station, Kansas State University, Manhattan, KS 66506. Paper III of this series is Fina et al. (1978)
Formerly Katheryn Louise McLeod
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Keith, C.L., Bridges, R.L., Fina, L.R. et al. The anaerobic decomposition of benzoic acid during methane fermentation. Arch. Microbiol. 118, 173–176 (1978). https://doi.org/10.1007/BF00415726
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DOI: https://doi.org/10.1007/BF00415726