Article Abstract:
The anaerobic metabolism of acetate was studied in sediments and groundwater from a gas condensation contaminated aquifer in an aquifer where geochemical evidence implicated sulfate reduction and methanogenesis as the predominant terminal electron-accepting processes. Most-probable-number tubes containing either [2-(super 14)C]acetate or [U-(super 14)C]acetate produced higher quantities of CH4 compared to CO2 in the presence or absence of sulphate.
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Article Abstract:
The ability to utilize acetate was studied and compared among fivestrains of Methanothrix soehngenii. Based on results of the study, the rate of acetate utilization by all strains was dependent on the initial concentration of acetate and followed Michaelis-Menten kinetics. The strains differed in their kinetics of acetate utilization with strain MTAS showing higher ability of utilization.
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Article Abstract:
The nonaceticlastic syntrophic oxidation with the help of acetate oxidizing syntrophs and hydrogenotrophic methanogens was recommended to engage the major path in complete methanogenesis at reduced capacity of dilution. The outcome indicated that the change in the dilution rate could lead to a change in the major path of acetate switching over to methane in acetate-fed chemostats.
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