Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing hydrocarbon
Patent
1982-08-10
1985-09-10
Wiseman, Thomas G.
Chemistry: molecular biology and microbiology
Micro-organism, tissue cell culture or enzyme using process...
Preparing hydrocarbon
435 42, 435166, 435253, 435822, 435842, C12P 3900, C12P 500, C12P 502, C12N 120, C12R 101, C12R 1145
Patent
active
045406669
ABSTRACT:
A methane fermentation process wherein a strain of the genus Methanobacterium is cultivated in a fermenter containing at least a carbon source, a nitrogen source, inorganic salts and micro-flora for methane fermentation. The strain has a methanogenic activity above 8.7.times.10.sup.-8 ml/cell.day in the stationary phase of growth, exhibits the methanogenic activity even at an oxygen partial pressure of 1/30 atm. and is allowed to live under an oxygen partial pressure up to 1/5 atm. The seed of the strain is obtained by anaerobically cultivating the strain in a culture medium containing at least nitrogen sources, inorganic salts and reducing agents in a mesophilic range of 25.degree. to 45.degree. C. using a substrate such as a mixed gas of hydrogen and carbon dioxide, a formate or an acetate. The growth of the strain is facilitated when cocultured with a strain belonging to the genus Clostridium.
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Namikawa Syunji
Nukina Yasuyuki
Oi Susumu
Tomioka Toshikazu
Yamamoto Takehiko
Huleatt Jayme A.
Matsushita Electric Industrial Company Limited
Wiseman Thomas G.
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