The influence of a number of environmental parameters on the fermentation of glucose, and on the energetics of growth of Clostridium butyricum in chemostat culture, have been studied. With cultures that were continuously sparged with nitrogen gas, glucose was fermented primarily to acetate and butyr
Energetic aspects of the metabolism of reduced sulphur compounds inThiobacillus denitrificans
β Scribed by Anje Timmer-ten Hoor
- Publisher
- Springer Netherlands
- Year
- 1976
- Tongue
- English
- Weight
- 533 KB
- Volume
- 42
- Category
- Article
- ISSN
- 0003-6072
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β¦ Synopsis
TIMMER-TEN HOOR, A. 1976
. Energetic aspects of the metabolism of reduced sulphur compounds in Thiobacillus denitrificans. Antonie van Leeuwenhoek 42: 483-492.
Yields of Thiobacillus denitrificans on different substrates were compared. The organism was grown in a chemostat at a dilution rate of 0.03 h-1. From the difference in the cell yields with (1) oxygen (6.40 g carbon per mole thiosulphate) and ( 2) nitrate (4.51 g carbon per mole thiosulphate) as an electron acceptor the experimental value for YATP was estimated to be 1.75. The efficiency of the biosynthetic system would be 42~ if 1 ATP should be needed in reversed electron transport, and 57~ if this was 2 ATP per electron pair.
It could be calculated that during anaerobic oxidation of thiosulphate with nitrate 1.41 or 1.16 ATP per 2 electrons are generated if 1 or 2 ATP respectively per thiosulphate is formed in substrate-level phosphorylation. For aerobic oxidation these figures are 2.40 and 2.16, respectively
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A 480 L evacuable reaction chamber, equipped with FT-IR spectroscopy on-line and ion chromatography off-line, has been used to study the gas phase reaction between the nitrate radical, NOa, and the reduced organic sulphur compounds CH~CHZSH, ( C H ~C H ~Z S , (CH~CHZ)ZSZ, and CH&H2SCH3 in air. The p
## Abstract **BACKGROUND:** This study deals with the potential of biological processes combining biofiltration and a biotrickling filter to treat a mixture of sulphur reduced compounds (SRC) including dimethylsulfide (DMS), dimethyldisulfide (DMDS) and hydrogen sulphide (H~2~S). The first step in