Heat-stable, salt-tolerant microbial xanthanase

Details Heat-stable, salt-tolerant microbial xanthanase Heat-stable, salt-tolerant microbial xanthanase

1989-08-29

1991-02-26

Lilling, Herbert J.

Chemistry: molecular biology and microbiology

Enzyme , proenzyme; compositions thereof; process for...

Hydrolase

435 42, 435104, 435200, 435232, 435274, 435822, 435829, C12P 3900, C12N 942, C12N 120, C12R 101

Patent

active

049961535

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 zanthanase 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.
patent: 4886746 (1989-12-01), Cadmus et al.
Chem. Abs. 95:146157q of "Xanthanase Enzyme" Cripps et al. Abstract E.P. Application 0030393 June 1981.
Chem. Abs. 92:176420a "Enzymatic Hydrolysis of the Bacterial Polysaccharide Xanthian by Cellulase" Rindaudo et al. 1980.
Slodki et al., "International Bioresources Journal" 1985, vol. 1 "Production & Stability of Xanthan Gums", pp. 190-199.
Cadmus et al. "Developments in Industrial Micieosiology", vol. 26, 1985, chap. 18, pp. 281-289.
Cadmus et al., "Industrial Polysaccharides" Edited M. Yalpani 1987 Elsevier Science Pubul. Amsterdam, pp. 101-107.

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