Purification of microbial enzyme extracts using synthetic polyel

Details Purification of microbial enzyme extracts using synthetic polyel Purification of microbial enzyme extracts using synthetic polyel

1976-12-10

1977-10-25

Shapiro, Lionel M.

Textiles: fiber preparation

C07G 7028

Patent

active

040554694

ABSTRACT:
Nucleic acids and unwanted proteins are removed from microbial enzyme extracts by precipitation with water-soluble, cationic polymers comprised of monomers having the structure ##STR1## wherein R.sub.1 is a hydrogen atom, a lower alkyl group, or the equivalent and R.sub.2 is a nitrogen containing group capable of carrying a positive electrical charge when the polymer is dissolved in an aqueous solution.

REFERENCES:
patent: 3252961 (1966-05-01), Rodgers et al.
patent: 3555001 (1971-01-01), Waliis et al.
patent: 3725545 (1973-04-01), Maes
patent: 3728224 (1973-04-01), Borglum
patent: 3737377 (1973-06-01), Sternberg
patent: 3794562 (1974-02-01), Bergmeyer et al.
patent: 3846543 (1974-11-01), Fields et al.
Abstract of Belgium Patent No. 754,018.
Abstract of Japanese Patent No. 73/33387.
Abstract of East German Patent No. 105,251.
Katchalsky, Endeavor, vol. 12, pp. 90-94 (1953).

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