Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing compound containing saccharide radical
Patent
1997-03-24
1998-08-18
Beisner, William H.
Chemistry: molecular biology and microbiology
Micro-organism, tissue cell culture or enzyme using process...
Preparing compound containing saccharide radical
4352881, 4352975, 4353041, C12M 134, C12M 124
Patent
active
057957738
ABSTRACT:
A method and a sealable, sterilizable vessel for detecting the presence of microorganisms in a specimen, the vessel containing a liquid culture medium and a sensor with an indicator medium therein. A gas permeable membrane with a gas impermeable removable seal thereon are provided in a wall of the vessel. If the microorganism to be detected is an anaerobic organism, then the gas impermeable seal is left in place. If the microorganism to be detected is an aerobic organism, then the gas impermeable seal is removed so as to allow the passage of oxygen into the vessel. In a preferred embodiment, the gas permeable membrane allows the passage of oxygen into the vessel while at least partly restricting the passage of carbon dioxide to outside of the vessel. Changes in the indicator medium resulting from a change in gas production (CO.sub.2, NH.sub.2, H.sub.2 S, etc.), volatile acid production or pH concentration in the medium, are detected from outside the vessel.
REFERENCES:
patent: D323299 (1992-01-01), Leno
patent: 4271973 (1981-06-01), Quagliaro et al.
patent: 4299921 (1981-11-01), Youssef
patent: 4579631 (1986-04-01), Ishikawa et al.
patent: 4839292 (1989-06-01), Cremonese
patent: 4863051 (1989-09-01), Eibner et al.
patent: 4933082 (1990-06-01), Yamada et al.
patent: 5047347 (1991-09-01), Cline
patent: 5069686 (1991-12-01), Baker et al.
patent: 5089395 (1992-02-01), Snyder et al.
patent: 5089413 (1992-02-01), Nelson et al.
patent: 5094955 (1992-03-01), Calandra et al.
patent: 5116758 (1992-05-01), Verma
patent: 5164301 (1992-11-01), Thompson et al.
patent: 5188946 (1993-02-01), Ward, Jr. et al.
patent: 5217876 (1993-06-01), Turner et al.
patent: 5358872 (1994-10-01), Mussi et al.
patent: 5374557 (1994-12-01), Verma
patent: 5391496 (1995-02-01), Kayal et al.
patent: 5409829 (1995-04-01), Mussi et al.
Li et al. "Scanning optical sensor for the measurement of dissolved oxygen and BOD." Sensors and Actuators. vol. B 21 (1994), pp. 143-149.
Jeffrey Scott R.
Read Karen A.
Ronsick Christopher S.
Thorpe Thurman C.
Trogdon David E.
Akzo Nobel N.V.
Beisner William H.
Muir Gregory R.
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