JPS5752829B2 - - Google Patents

Info

Publication number
JPS5752829B2
JPS5752829B2 JP19193881A JP19193881A JPS5752829B2 JP S5752829 B2 JPS5752829 B2 JP S5752829B2 JP 19193881 A JP19193881 A JP 19193881A JP 19193881 A JP19193881 A JP 19193881A JP S5752829 B2 JPS5752829 B2 JP S5752829B2
Authority
JP
Japan
Prior art keywords
blades
rotation
stirring
increase
culture mixture
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
JP19193881A
Other languages
Japanese (ja)
Other versions
JPS57122790A (en
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 filed Critical
Priority to JP19193881A priority Critical patent/JPS57122790A/en
Publication of JPS57122790A publication Critical patent/JPS57122790A/en
Publication of JPS5752829B2 publication Critical patent/JPS5752829B2/ja
Granted 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
    • C12M27/00—Means for mixing, agitating or circulating fluids in the vessel
    • C12M27/02—Stirrer or mobile mixing elements
    • 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
    • C12M41/34—Means for regulation, monitoring, measurement or control, e.g. flow regulation of concentration of gas
    • 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
    • C12M41/42—Means for regulation, monitoring, measurement or control, e.g. flow regulation of agitation speed

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Zoology (AREA)
  • Wood Science & Technology (AREA)
  • Microbiology (AREA)
  • Sustainable Development (AREA)
  • Biotechnology (AREA)
  • Biomedical Technology (AREA)
  • Biochemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Analytical Chemistry (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)

Abstract

PURPOSE:The rotation of the stirrer blades is kept constant at a low speed and the rotation of the blades for stirring air into the culture mixture is varied to control the DO, whereby the turbulence of the culture mixture caused by rotation increase in the stirring blades is prevented to increase the yield of microorganism cells. CONSTITUTION:Blades for stirring air into the culture mixture 4 is set on the liquid phase 2 in the tank 1 and a cylindrical draft 5 of a larger diameter than that of the stirring blades 4 is set around the blades so that it extends into the gas phase 3. At the bottom of the liquid phase, is provided the stirring blades 6 and the motor 8 is connected to the blades 6. In the meantime, the motor 7 drives the blades 4. In an example of experiments, the rotation of the blades 6 is kept 300rpm or less and the rotation of the blades 4 with smaller diameter is veried. There is a linear relation between the rotation of the blades 4 and the logarithm of oxygen-absorption rate and the absorption rate linearly and remarkably rises with the increase in rotation.
JP19193881A 1981-11-30 1981-11-30 Method of controlling dissolved oxygen Granted JPS57122790A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19193881A JPS57122790A (en) 1981-11-30 1981-11-30 Method of controlling dissolved oxygen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19193881A JPS57122790A (en) 1981-11-30 1981-11-30 Method of controlling dissolved oxygen

Publications (2)

Publication Number Publication Date
JPS57122790A JPS57122790A (en) 1982-07-30
JPS5752829B2 true JPS5752829B2 (en) 1982-11-10

Family

ID=16282947

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19193881A Granted JPS57122790A (en) 1981-11-30 1981-11-30 Method of controlling dissolved oxygen

Country Status (1)

Country Link
JP (1) JPS57122790A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100841772B1 (en) 2007-04-23 2008-06-27 주식회사 포스코 Hydrochloric acid stock solution mixing device

Also Published As

Publication number Publication date
JPS57122790A (en) 1982-07-30

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