Flocculation of cell material

Details Flocculation of cell material Flocculation of cell material

2005-11-22

2005-11-22

Naff, David M. (Department: 1651)

Chemistry: molecular biology and microbiology

Measuring or testing process involving enzymes or...

Involving viable micro-organism

C435S117000, C435S180000, C435S261000

Reexamination Certificate

active

06967085

ABSTRACT:
A process of flocculating microbial cell material from a suspending medium which contains cell material, comprising adding to the suspending medium a first polymeric material which is cationic and has intrinsic viscosity of not more than 2 dl/g, and subsequently or simultaneously adding to the suspending medium a second polymeric material which is cationic or substantially non-ionic and has intrinsic viscosity of at least 4 dl/g, and allowing the cell material to flocculate.

REFERENCES:
patent: 5552316 (1996-09-01), Savage
patent: 0448926 (1991-10-01), None
patent: 98/31749 (1998-07-01), None
Derwent Abstract 1997-488205 [45] for RU 2077594 (1997).
Derwent Abstract 1985-018970 for DD 213690 (1984).
J.-G. Shan et al., Journal of Biotechnology, vol. 49, (1996), pp. 173-178.

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