Polyanionic heteropolysaccharide biopolymers

Details Polyanionic heteropolysaccharide biopolymers Polyanionic heteropolysaccharide biopolymers

1980-05-14

1983-07-26

Lovering, Richard D.

Compositions

Preservative agents

Anti-corrosion

210925, 252 855D, 252312, 252352, 252DIG6, 435101, B01F 1730, B01F 1734, B01F 1752

Patent

active

043953530

ABSTRACT:
Growth of Acinetobacter Sp. ATCC 31012 on various substrates and under varying conditions has been used to produce two classes of extracellular microbial protein-associated lipopolysaccharides (the "emulsans") which, on a weight-for-weight basis, are probably the most efficient emulsifiers discovered and which possess certain characteristics that permit these unique extracellular microbial lipopolysaccharides to be widely used in cleaning oil-contaminated vessels, oil spill management, and enhanced oil recovery by chemical flooding. Emulsans and apoemulsans, both of which biopolymers are strongly anionic, exhibit a high degree of specificity in the emulsification of hydrocarbon substrates which contain both aliphatic and cyclic components. In addition, these extracellular microbial polysaccharides as well as their O-deacylated and N-deacylated derivatives are adsorbed on and capable of flocculating aluminosilicate ion-exchangers, such as kaolin and bentonite.

REFERENCES:
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patent: 3997398 (1976-12-01), Zajic et al.
Towner et al.,: "RP4 Fertility Variants in Acinetobacter Calcoaceticus", Genet. Res. 28: 301-306 (1976).
Applied Microbiology, 30, 10(1975).
Int. Assoc. Microbiol. Soc. Abstracts, vol. II, p. 201.
EPA Report 660-3-75-001, pp. 157-168, Dec. 1974.
Applied Microbiology, 24, 363(1972).
Dev. Ind. Microbiol., 12, 87(1971).
Biotechnol. Bioeng., 14, 331(1972).
Chemosphere, 1, 51(1972).
Critical Rev. Microbiol., 5, 39, (1976).
Annual Reviews of Microbiology, 31, 379 (1977).

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