The DOI matches its Crossref record.
Inhibition of Methanogenesis from Acetate in Granular Sludge by Long-Chain Fatty Acids
Abstract
The effect of four saturated long-chain fatty acids (caprylic, capric, lauric, and myristic) and one unsaturated long-chain fatty acid (oleic) on the microbial formation of methane from acetate was investigated in batch anaerobic toxicity assays. The tests were carried out with granular sludge from an upflow anaerobic sludge bed reactor. In this sludge, Methanothrix spp. are the predominant acetoclastic methanogens. Lauric acid appeared to be the most versatile inhibitor: inhibition started at 1.6 mM, and at 4.3 mM the maximum specific acetoclastic methanogenic activity had been reduced to 50%. Caprylic acid appeared to be only slightly inhibitory. Oleic acid was almost as inhibitory as lauric acid. Although adsorption of the inhibitor on the cell wall might play an important role in the mechanism of inhibition, the inhibition was found to be correlated with concentration rather than with the amount per unit of biomass. In practical situations, as in anaerobic waste treatment processes, synergism can be expected to enhance the inhibition of methanogenesis. In the present research a background concentration of lauric acid below its MIC strongly enhanced the toxicity of capric acid and (to an even greater extent) myristic acid.
Overview
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
Most previous works report on results from batch assays and the general conclusion is that no adaptation of methanogenic bacteria to LCFA occurs.
“Adaptation of methanogenic bacteria to LCFA is discussed in the literature, but most of the previous works report on results from batch assays (Hanaki et al., 1981;Koster and Cramer, 1987;Angelidaki and Ahring, 1992) and the general conclusion is that no adaptation of methanogenic bacteria to LCFA occurs.”
From Effects of lipids and oleic acid on biomass development in anaerobic fixed-bed reactors. Part II: Oleic acid toxicity and biodegradability (2001) · cites this paper as Koster and Cramer, 1987
Citations
Cited by
Sorted by citations
Cuetos, M. J., Gómez, X., Otero, M., & Morán, A. (2008) · Biochemical Engineering Journal · doi:10.1016/j.bej.2007.11.019 · Cited by 269
Alves, M. M., Mota Vieira, J. A., Álvares Pereira, R. M., Pereira, M. A., & Mota, M. (2001) · Water Research · doi:10.1016/s0043-1354(00)00242-6 · Cited by 163
Li, Z., Wrenn, B. A., & Venosa, A. D. (2005) · Biodegradation · doi:10.1007/s10532-004-2057-6 · Cited by 28
Li, Z., Wrenn, B. A., & Venosa, A. D. (2005) · Water Research · doi:10.1016/j.watres.2005.05.021 · Cited by 12
Metadata
- Authors
- Koster, I. W., & Cramer, A.
- Affiliations
- Department of Water Pollution Control, Wageningen Agricultural University, De Dreijen 12, 6703 BC Wageningen, The Netherlands
- Venue
- Applied and Environmental Microbiology
- Publisher
- American Society for Microbiology
- Published
- 1987-02
- Volume
- 53
- Issue
- 2
- Pages
- 403-409
- ISSN
- 0099-2240
- 1098-5336
- Cited by
- 228
- References
- 0
- Language
- en
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
