Method and device for bacterial testing

Details Method and device for bacterial testing Method and device for bacterial testing

1987-10-19

1991-09-10

Kepplinger, Esther L.

Chemistry: molecular biology and microbiology

Measuring or testing process involving enzymes or...

Involving viable micro-organism

435 30, 435 31, 435 32, 435 34, 435291, 435292, 435294, 435296, 435807, C12Q 102, C12Q 104, C12M 124

Patent

active

050473310

ABSTRACT:
A method of testing for the growth of bacteria in a sample comprises introducing the sample into a sterile bacterial growth medium in a closed vessel incubating the vessel, and observing a pressure change within the vessel which indicates the growth of bacteria in the sample. A device for doing this comprises a bottle 10 with a pierceable closure 12; and a syringe comprising a cylinder 16 and a piston 18 connected to a hypodermic needle 20 which passes through the closure 12 and preferably extends below the surface of the growth medium in the bottle.

REFERENCES:
patent: 2019950 (1930-05-01), Bunzell
patent: 3893892 (1975-07-01), Mehl
patent: 3907646 (1975-09-01), Wilkins et al.
patent: 4152213 (1979-05-01), Ahnell
patent: 4170520 (1979-10-01), Weaver
patent: 4197369 (1980-04-01), Weaver
patent: 4270381 (1981-06-01), Demaray
patent: 4314029 (1982-02-01), Ohtake et al.
Stafford et al., Methane Production from Waste Organic Matter, CRC Press Inc., Boca Raton, Fla., (1981), pp. 125-136.

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