Precipitate test for microorganisms

Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving viable micro-organism

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

435 4, 435 38, 435288, 435296, 435805, 435970, 436533, 436534, C12Q 100, C12Q 108, C12Q 110

Patent

active

054037212

ABSTRACT:
There is disclosed an improved method for testing for the presence of a particular microorganism or group of microorganisms characterized by a particular enzyme. The method uses a dye-forming substrate throughout a polymer matrix or on the surface of a solid support member that forms a colored precipitate when cleaved by the enzyme. The precipitate is concentrated to the polymer matrix and/or solid support member to create a visible reaction product, wherein the amount of dye-forming substrate needed is independent of the sample size. The present invention further comprises an enzyme indicator device comprising a dye-forming substrate throughout a polymer system or on the surface of a solid support member.

REFERENCES:
patent: 3856628 (1974-12-01), Sbarra
patent: 3862011 (1975-01-01), Smith
patent: 3881993 (1975-05-01), Freake et al.
patent: 3957584 (1976-05-01), Kronish et al.
patent: 4018653 (1977-04-01), Mennen
patent: 4278763 (1981-07-01), Berger et al.
patent: 4390622 (1983-06-01), Cartwright
patent: 4556636 (1985-12-01), Belly et al.
patent: 4753876 (1988-06-01), Hemming et al.
patent: 4767702 (1988-08-01), Cohenford
patent: 4803162 (1989-02-01), Smith et al.
patent: 4812409 (1989-03-01), Babb et al.
patent: 4824640 (1989-04-01), Hildenbrand et al.
patent: 4830970 (1989-05-01), Madaus et al.
patent: 4923804 (1990-05-01), Ley et al.
Frampton et al., "Evaluation of the beta-glucuronidase substrate 5-bromo-4-chloro-3-indolyl-beta-D-glucuronide (X-GLUC) in a 24-hour direct plating method for Escherichia coli," J. Food Prot. 51:402-404, 1988.
Ley et al., "Use of indoxyl-beta-D-glucuronide for the enumeriation of Escherichia coli," Ann. Meet. Amer. Soc. Microbiol., Abstract Q35:288, 1988.
Watkins et al., "A novel compound for identifying Escherichia coli," Appl. Environ. Microbiol. 54:1874-1875, 1988.
Markavyan et al Bioorg Khim 13(2): 263-5, 1987.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Precipitate test for microorganisms does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Precipitate test for microorganisms, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Precipitate test for microorganisms will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2380031

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.