Biological assay for microbial contamination

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

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435 39, C12Q 106

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active

057703957

ABSTRACT:
Methods and kits for detecting the presence of and quantifying the concentration of viable microorganisms in a liquid sample are provided. Enzymes present in viable microorgansims reduce an indicator reagent to produce a visible color change. No titrations or dilutions of the sample are necessary. Variations of the test are described which can be used to detect a threshold level of viable microorganisms, to detect the presence or absence of viable microorganisms and to quantify the concentration of viable microorganisms in a liquid sample. The results are obtained rapidly with those for the detection available within thirty minutes and those for the quantification available within thirteen hours.

REFERENCES:
patent: 3881993 (1975-05-01), Freake et al.
patent: 4083852 (1978-04-01), Terasawa et al.
patent: 4299916 (1981-11-01), Litman et al.
patent: 4366241 (1982-12-01), Tom et al.
patent: 4391904 (1983-07-01), Litman et al.
patent: 4533629 (1985-08-01), Litman et al.
patent: 4540659 (1985-09-01), Litman et al.
patent: 4610961 (1986-09-01), Guardino et al.
patent: 4717660 (1988-01-01), Schulte
patent: 4843000 (1989-06-01), Litman et al.
patent: 4849338 (1989-07-01), Litman et al.
patent: 4912036 (1990-03-01), Cichanowicz et al.
patent: 4923804 (1990-05-01), Ley et al.
patent: 4925789 (1990-05-01), Edberg
patent: 4945060 (1990-07-01), Turner et al.
patent: 4956301 (1990-09-01), Ismail et al.
patent: 5039349 (1991-08-01), Schoeppel
patent: 5156953 (1992-10-01), Litman et al.
patent: 5159799 (1992-11-01), Rising et al.
patent: 5196313 (1993-03-01), Culbreth
patent: 5206151 (1993-04-01), Robertson
patent: 5366873 (1994-11-01), Eden etal.
patent: 5420017 (1995-05-01), Tuompo et al.
patent: 5550032 (1996-08-01), Isbister
Grabherr, G. et al., Biological Abstract #79:173371, Oecol. Plant 13(3) pp. 227-252 (1978).
Davis et al. Microbiology, Harper & Row (1980) pp. 65, 67, 114.

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