MY135959A - Method and apparatus for measuring a number of bacteria - Google Patents

Method and apparatus for measuring a number of bacteria

Info

Publication number
MY135959A
MY135959A MYPI20001465A MY135959A MY 135959 A MY135959 A MY 135959A MY PI20001465 A MYPI20001465 A MY PI20001465A MY 135959 A MY135959 A MY 135959A
Authority
MY
Malaysia
Prior art keywords
bacteria
time period
oxygen concentration
necessary time
measured
Prior art date
Application number
Inventor
Hideo Katayama
Yoshihisa Amano
Jun-Ichiro Arai
Original Assignee
Daikin Ind Ltd
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 Daikin Ind Ltd filed Critical Daikin Ind Ltd
Publication of MY135959A publication Critical patent/MY135959A/en

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
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
    • C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
    • C12Q1/02—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving viable microorganisms
    • C12Q1/04—Determining presence or kind of microorganism; Use of selective media for testing antibiotics or bacteriocides; Compositions containing a chemical indicator therefor
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
    • C12Q2304/00—Chemical means of detecting microorganisms
    • C12Q2304/40—Detection of gases
    • C12Q2304/44—Oxygen

Abstract

A DISCLOSED OXYGEN CONCENTRATION WITHIN A LIQUID CULTURE MEDIUM WHICH IS ADDED A TEST BODY IS DETECTED BY AN OXYGEN ELECTRODE DEVICE, A NECESSARY TIME PERIOD TILL THE DISSOLVED OXYGEN CONCENTRATION REACHES TO NEARLY 0 IS MEASURED BY A TIMER SECTION , AND A BACTERIA NUMBER IS OUTPUT FROM A BACTERIA NUMBER OUTPUT SECTION BASED UPON THE NECESSARY TIME PERIOD WITHOUT AND A CALIBRATION CURVE, SO THAT A NUMBER OF BACTERIA IS ACCURATELY MEASURED WITH A SHORT TIME PERIOD WITHOUT SPECIAL PRETREATMENT SUCH AS INCUBATION AND THE LIKE EVEN WHEN THE NUMBER OF BACTERIA IS SMALL.(FIG 1)
MYPI20001465 1999-04-07 2000-04-07 Method and apparatus for measuring a number of bacteria MY135959A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP09987099A JP4375836B2 (en) 1999-04-07 1999-04-07 Bacterial count measuring method and apparatus

Publications (1)

Publication Number Publication Date
MY135959A true MY135959A (en) 2008-07-31

Family

ID=14258857

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI20001465 MY135959A (en) 1999-04-07 2000-04-07 Method and apparatus for measuring a number of bacteria

Country Status (3)

Country Link
JP (1) JP4375836B2 (en)
MY (1) MY135959A (en)
WO (1) WO2000061791A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3753153B1 (en) * 2004-08-02 2006-03-08 ダイキン工業株式会社 Bacteria count measuring method and bacteria count measuring apparatus
CA2575640C (en) 2004-08-02 2010-06-29 Daikin Industries, Ltd. Method of measuring the number of bacteria, device of measuring the number of bacteria and cell used in the device
JP4609035B2 (en) * 2004-10-26 2011-01-12 ダイキン工業株式会社 Calibration curve creation method, microorganism count measurement method, and program
CN101115845B (en) 2004-11-24 2011-04-13 大金工业株式会社 Method of measuring the number of microorganisms and apparatus for measuring the number of microorganisms
JP3788478B1 (en) * 2004-11-24 2006-06-21 ダイキン工業株式会社 Microbe count measuring method and microbe count measuring apparatus
JP4863737B2 (en) * 2006-03-13 2012-01-25 株式会社堀場製作所 Microorganism detection method and microorganism detection apparatus
US8563265B2 (en) * 2011-04-21 2013-10-22 Mocon, Inc. Analytical instrument and method for evaluating microbial contamination of an object
JP6040558B2 (en) * 2012-04-13 2016-12-07 ダイキン工業株式会社 Bacteria inspection method
JP6199080B2 (en) * 2013-05-24 2017-09-20 三井造船株式会社 Method for provisional determination of ballast water quality, method for treatment of ballast water, method for provisional determination of biological composition, method for evaluating biological activity, and method for estimating biological concentration

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6315150A (en) * 1986-07-08 1988-01-22 Terumo Corp Method and apparatus for measuring viable cell number
JPH0257199A (en) * 1988-08-22 1990-02-26 Tokyo Metropolis Measurement of number of coliform group
JPH08317797A (en) * 1995-05-24 1996-12-03 Toyo Eng Corp Measurement of fermention tank

Also Published As

Publication number Publication date
JP4375836B2 (en) 2009-12-02
JP2000287699A (en) 2000-10-17
WO2000061791A1 (en) 2000-10-19

Similar Documents

Publication Publication Date Title
DK1181348T3 (en) Apparatus and method for testing a biological fluid
EP0934428A4 (en) Microbiological assessment method and device utilizing oxygen gradient sensing
DK123889D0 (en) DEVICE FOR MICROORGANISM DETECTION
NO981045L (en) Fluorescence detector
GB2337328A (en) Method and apparatus for rapid hygiene testing
EP1383914A4 (en) Improved method for detection of atp
CN102796660A (en) Detection device for monitoring water quality on line and water quality on-line monitoring method
NO20006201L (en) Method and device for oil-in-water measurement
DE69610879T2 (en) A FAST MICROBIOLOGICAL TEST TO DETECT ANTIBACTERIAL COMPOUNDS
MY135959A (en) Method and apparatus for measuring a number of bacteria
DK510579A (en) METHOD AND APPARATUS FOR MEASURING PH VALUE
DK185891D0 (en) DEVICE FOR DETECTING MICROORGANISMS
ATE423190T1 (en) DIAGNOSTIC MICROBIOLOGICAL TEST APPARATUS AND METHOD
EP0184260A1 (en) Method and apparatus for detecting microbiological contamination
EP0435767B1 (en) Method for determination of aerobic bacteria and apparatus therefor
EP1780286A4 (en) Bacterium counting method, bacterium counter, and cell used for the counter
TH49161A (en) Methods and instruments for determining the number of bacteria
ATE51415T1 (en) DETECTION OF SALICYLATE AND DEVICE FOR CARRYING OUT THE SAME.
IT9048479A1 (en) DETECTION OF TOXIC SUBSTANCES PRESENT IN A WATER THROUGH THE MONITORING OF THE METABOLISM OF SELECTED MICROORGANISMS.
KR940004049A (en) Microbial activity measuring device
ES461136A1 (en) Waste water testing method of measuring level of poisonous substance checking activity of bacteria
JPS57186499A (en) Measurement of freshness of protein food, etc. and its device
MXPA05009253A (en) Method for detecting micro-organisms in an electrocoating process.
SU1138724A1 (en) Ferment activity determination method
CN114295450A (en) Device and method for detecting production yield of microbial gas