Bioreactor carrier gel prepared from a crosslinked N-vinylcarbox

Details Bioreactor carrier gel prepared from a crosslinked N-vinylcarbox Bioreactor carrier gel prepared from a crosslinked N-vinylcarbox

1998-03-09

2000-10-17

Naff, David M.

Chemistry: molecular biology and microbiology

Carrier-bound or immobilized enzyme or microbial cell;...

Enzyme or microbial cell is immobilized on or in an organic...

210601, 435182, 435395, 435396, 435397, 4352625, 4352891, C12N 1108, C12N 1104, C12N 500, C02F 300, C12M 300

Patent

active

061330043

ABSTRACT:
A bioreactor carrier is provided composed of a water absorption gel of a crosslinked N-vinylcarboxamide resin which has a great moisture content and excellent physical strength, is not eroded by microorganisms and is easily mass-produced on an industrial scale. The gel is obtained by swelling and gelling a crosslinked N-vinylcarboxamide resin made from an N-vinylcarboxamide such as N-vinylacetoamide. The swollen gel may be in the form of beads of 1.0 to 20 mm, and the resin when swollen with water has a water absorption coefficient of 500 to 3500%. Resin beads may be swollen in a suspension of a biocatalyst such as animal cells, plant cells, microorganisms or protozoans to bind and immobilize the biocatalyst to form a bioreactor. The microorganisms can be nitrate bacteria, denitrification bacteria or Hyphomycetes, and the bioreactor may be used to treat waste water or for deodorizing. The crosslinked N-vinylcarboxamide resin contains a repeating unit shown by formula (A) below crosslinked with a crosslinking agent. ##STR1## wherein R.sup.1 and R.sup.2 represent independently a hydrogen atom or a methyl group.

REFERENCES:
patent: 4607057 (1986-08-01), Bonnans et al.
Chemical Abstract, vol. 124, No. 24; Jun. 10, 1996 Abstract No. 318213r.
Patent Abstracts of Japan, vol. 096, No. 011, Nov. 29, 1996.

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