Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing element or inorganic compound except carbon dioxide
Patent
1988-09-23
1989-12-12
Lilling, Herbert J.
Chemistry: molecular biology and microbiology
Micro-organism, tissue cell culture or enzyme using process...
Preparing element or inorganic compound except carbon dioxide
435170, 435154, 4352521, 435801, 435822, C12P 300, C12P 104, C12R 101, C12N 122
Patent
active
048867527
ABSTRACT:
A method of producing magnetite is disclosed which comprises culturing a microorganism designated GS-15 in the presence of organic matter and a ferric iron compound. Unlike prior art production of magnetite using magnetotactic bacteria, GS-15 is able to produce large amounts of ultrafine-grained magnetite extracellularly under anaerobic conditions, allowing for easy separation and recovery of the magnetite without the need for rigorous control over oxygen tensions in the culture medium. As a result, the method of the present invention can be used to mass produce magnetite efficiently using inexpensive means and materials.
REFERENCES:
patent: 4385119 (1983-05-01), Blakemore
patent: 4394451 (1983-07-01), Blakemore et al.
patent: 4432998 (1984-02-01), Peer
patent: 4677067 (1987-06-01), Schwartz et al.
Koltos E. Philip
Lilling Herbert J.
The United States of America as represented by the Secretary of
Zitomer Stephanie W.
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