Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Process involving micro-organisms of different genera in the...
Patent
1988-05-10
1989-12-12
Lilling, Herbert J.
Chemistry: molecular biology and microbiology
Micro-organism, tissue cell culture or enzyme using process...
Process involving micro-organisms of different genera in the...
435104, 435200, 435209, 435274, 435822, 435829, 435830, C12P 3900, C12N 942, C12N 120, C12R 101
Patent
active
048867462
ABSTRACT:
A novel mixed bacterial culture isolated from soil by enrichment culture techniques produces a xanthanase enzyme complex which is stable to 65.degree. C. in the presence of salt. These properties render the heat-stable, salt-tolerant xanthanase useful for in situ degradation of xanthan gum in petroleum recovery fluids and other thickened industrial brines.
REFERENCES:
patent: 4410625 (1983-10-01), Cadmus
patent: 4690891 (1987-09-01), Hou et al.
M. Rinaudo et al., "Enzymic Hydrolysis of the Bacterial Polysaccharide Xanthan by Cellulase," Int. J. Biol. Macromol. 2: 45-48 (1980) [Chem. Abstr. 92:239, Abstr. 176420a (1980)].
M. E. Slodki et al., "Production and Stability of Xanthan Gums; Xanthanases and Their Applicability," Int. Biores. J. 1: 190-199 (1985).
M. C. Cadmus et al., "Enzymic Breakage of Xanthan Gum Solution Viscosity in the Presence of Salts," Dev. Ind. Microbiol. 26: 281-289 (1985).
M. C. Cadmus et al., "Bacterial Degradation of Xanthan Gum," In Industrial Polysaccharides: Genetic Engineering, Structure/Property Relations and Applications, ed. M. Yalpani, pp. 101-107 (1987).
Cadmus Martin C.
Slodki Morey E.
Brokke Mervin E.
Fado John D.
Lilling Herbert J.
Silverstein M. Howard
The United States of America as represented by the Secretary of
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