Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving antigen-antibody binding – specific binding protein...
Patent
1997-12-10
1999-08-10
Housel, James C.
Chemistry: molecular biology and microbiology
Measuring or testing process involving enzymes or...
Involving antigen-antibody binding, specific binding protein...
422 8205, 422 8208, 435 4, 435 45, 435 735, 435 18, 435 34, 435 38, 435 39, G01N 33569, G01N 2129, C12Q 134, C12Q 106
Patent
active
059357991
ABSTRACT:
A semi-quantitative method for determining the concentration of viable coliforms or E. coli in a liquid is provided. The sample to be tested is mixed with an indicator reagent which includes a specific indicator compound that undergoes a change that is detectable by spectrophotometric or visual methods upon cleavage by a beta galactosidase enzyme found in coliforms or a beta glucuronidase enzyme unique to E. coli.
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Venkateswaran et al, "Comparison of commercially available kits with standard methods for the detection of coliforms and Escherichia coli in foods", Appl. Environ. Microbiol., vol. 62, No. 7, pp. 2236-2243, Jul. 1, 1996.
George Mason University
Housel James C.
Swartz Rodney P.
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