GB1331072A - Method and means of optical density measurement of microbial cultures - Google Patents

Method and means of optical density measurement of microbial cultures

Info

Publication number
GB1331072A
GB1331072A GB5256470A GB5256470A GB1331072A GB 1331072 A GB1331072 A GB 1331072A GB 5256470 A GB5256470 A GB 5256470A GB 5256470 A GB5256470 A GB 5256470A GB 1331072 A GB1331072 A GB 1331072A
Authority
GB
United Kingdom
Prior art keywords
piston
chamber
culture
sample
ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB5256470A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gourdon SA Ets
Institut National de la Recherche Agronomique INRA
Original Assignee
Gourdon SA Ets
Institut National de la Recherche Agronomique INRA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gourdon SA Ets, Institut National de la Recherche Agronomique INRA filed Critical Gourdon SA Ets
Publication of GB1331072A publication Critical patent/GB1331072A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
    • C12M41/30—Means for regulation, monitoring, measurement or control, e.g. flow regulation of concentration
    • C12M41/36—Means for regulation, monitoring, measurement or control, e.g. flow regulation of concentration of biomass, e.g. colony counters or by turbidity measurements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/02—Burettes; Pipettes
    • B01L3/021—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids
    • B01L3/0217—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids of the plunger pump type
    • B01L3/0227—Details of motor drive means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • G01N1/14—Suction devices, e.g. pumps; Ejector devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/15—Preventing contamination of the components of the optical system or obstruction of the light path
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S435/00—Chemistry: molecular biology and microbiology
    • Y10S435/808—Optical sensing apparatus

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Organic Chemistry (AREA)
  • Wood Science & Technology (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Zoology (AREA)
  • Genetics & Genomics (AREA)
  • Clinical Laboratory Science (AREA)
  • Microbiology (AREA)
  • Biotechnology (AREA)
  • General Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Hydrology & Water Resources (AREA)
  • Sustainable Development (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
GB5256470A 1969-11-06 1970-11-04 Method and means of optical density measurement of microbial cultures Expired GB1331072A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6938124A FR2067508A5 (enExample) 1969-11-06 1969-11-06

Publications (1)

Publication Number Publication Date
GB1331072A true GB1331072A (en) 1973-09-19

Family

ID=9042671

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5256470A Expired GB1331072A (en) 1969-11-06 1970-11-04 Method and means of optical density measurement of microbial cultures

Country Status (6)

Country Link
US (1) US3714445A (enExample)
CH (1) CH517178A (enExample)
DE (1) DE2051189C3 (enExample)
FR (1) FR2067508A5 (enExample)
GB (1) GB1331072A (enExample)
NL (1) NL7016218A (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2130744A (en) * 1982-10-27 1984-06-06 Berthold Rudolf Dr Introducing sample vessel into measuring chamber using sealable plunger
US4586818A (en) * 1982-10-27 1986-05-06 Laboratorium Prof. Dr. Rudolf Berthold Measuring station for a photometer

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4021120A (en) * 1974-03-18 1977-05-03 Dr. Ing. Hans Mueller Method of measuring the turbidity of gas-containing liquid mediums with microorganisms
DE2913058C3 (de) * 1979-03-31 1981-10-15 Ihle Ingenieurgesellschaft mbH, 4000 Düsseldorf Vorrichtung zur Messung des Feststoffgehaltes einer Flüssigkeit
US4279509A (en) * 1979-12-05 1981-07-21 Syva Company Zero volume flow cell
US4798798A (en) * 1983-08-17 1989-01-17 Kraft, Inc. Apparatus for monitoring a chemical process
GB2154607B (en) * 1983-12-23 1987-09-23 Nishihara Env San Res Co Ltd Microorganism monitoring apparatus
JPS60244279A (ja) * 1984-05-21 1985-12-04 Mitsubishi Electric Corp 微生物類の自動観察装置
DE3516529A1 (de) * 1985-05-08 1986-11-27 Gesellschaft für Strahlen- und Umweltforschung mbH, München, 8042 Neuherberg Anlage zur turbidimetrischen messung und regelung von mikroorganismenkulturen
US4893935A (en) * 1988-08-19 1990-01-16 Mandel William R Apparatus and method for optical density measurements of biomass processes
US5917592A (en) * 1997-02-28 1999-06-29 Charm Sciences, Inc. Photometer, and test sample holder for use therein, method and system
EP0976821B1 (en) 1997-04-18 2009-02-18 Centro Nacional De Investigaciones Cientificas Equipment, kit and method for microbiological diagnosis
KR100253914B1 (ko) * 1997-12-20 2000-04-15 윤덕용 광투과경로길이조절이가능한밀폐형온라인측정장치
WO1999050442A1 (en) * 1998-03-30 1999-10-07 Friedrich Srienc A flow injection flow cytometry system for on-line monitoring of bioreactors and method for monitoring
ES2185496B1 (es) * 2001-07-17 2005-06-01 Universidad Politecnica De Valencia Equipo y metodo en linea para la deteccion, determinacion de la evolucion y cuantificacion de biomasa microbiana y otras sustancias que absorben a lo largo del espectro de luz durante el desarrollo de procesos biotecnologicos.
US20040214314A1 (en) * 2001-11-02 2004-10-28 Friedrich Srienc High throughput bioreactor
DE10204963A1 (de) * 2002-02-06 2003-08-14 Isco Inc Fotometrische Sonde für Untersuchungen an Flüssigkeiten sowie Verfahren hierfür
US20090285721A1 (en) * 2008-05-15 2009-11-19 Pason Systems Corp. Apparatus for chemical analysis of a sample
US10478821B2 (en) 2017-04-20 2019-11-19 Biomerieux, Inc. Optical density instrument and systems and methods using the same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1937722A (en) * 1931-08-14 1933-12-05 Simon Alfred Walter Dust and smoke density measuring device
US2898802A (en) * 1956-01-24 1959-08-11 Ljungberg Lars Rune Photoelectric colorimeter
US3542649A (en) * 1967-04-07 1970-11-24 Hoffmann La Roche Color developing composition consisting of an enzyme,a salicylate and a hypochlorite donor
US3572952A (en) * 1968-02-20 1971-03-30 American Optical Corp Float cuvette

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2130744A (en) * 1982-10-27 1984-06-06 Berthold Rudolf Dr Introducing sample vessel into measuring chamber using sealable plunger
US4586818A (en) * 1982-10-27 1986-05-06 Laboratorium Prof. Dr. Rudolf Berthold Measuring station for a photometer

Also Published As

Publication number Publication date
FR2067508A5 (enExample) 1971-08-20
US3714445A (en) 1973-01-30
DE2051189A1 (de) 1971-05-27
CH517178A (fr) 1971-12-31
NL7016218A (enExample) 1971-05-10
DE2051189B2 (de) 1979-02-22
DE2051189C3 (de) 1979-10-11

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee