IE42634L - Production of microorganisms - Google Patents

Production of microorganisms

Info

Publication number
IE42634L
IE42634L IE760251A IE25176A IE42634L IE 42634 L IE42634 L IE 42634L IE 760251 A IE760251 A IE 760251A IE 25176 A IE25176 A IE 25176A IE 42634 L IE42634 L IE 42634L
Authority
IE
Ireland
Prior art keywords
organisms
micro
hydrocarbon
methanol
growth medium
Prior art date
Application number
IE760251A
Other versions
IE42634B1 (en
Original Assignee
Shell Int Research
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 Shell Int Research filed Critical Shell Int Research
Publication of IE42634L publication Critical patent/IE42634L/en
Publication of IE42634B1 publication Critical patent/IE42634B1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
    • C12N1/32—Processes using, or culture media containing, lower alkanols, i.e. C1 to C6
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
    • C12N1/26—Processes using, or culture media containing, hydrocarbons

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Biotechnology (AREA)
  • Zoology (AREA)
  • Wood Science & Technology (AREA)
  • Genetics & Genomics (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Biomedical Technology (AREA)
  • Virology (AREA)
  • Microbiology (AREA)
  • Tropical Medicine & Parasitology (AREA)
  • Medicinal Chemistry (AREA)
  • Biochemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)

Abstract

1528011 Continuous cultivation of bacteria &c on methanol &c SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 9 Feb 1976 [11 Feb 1975] 5747/75 Heading C6F In a process for the production of microorganisms involving continuously cultivating one or more hydrocarbon or oxygenated hydrocarbon utilizing micro-organisms under aerobic conditions in a liquid growth medium comprising assimilable sources of nitrogen and essential mineral salts in the presence of a hydrocarbon or oxygenated hydrocarbon, withdrawing from the growing culture, liquid growth medium containing micron organisms, separating micro-organisms from the withdrawn liquid growth medium and recycling at least part of the withdrawn liquid growth medium to the growing culture, the withdrawn liquid growth medium is chilled to a temperature in the range of -5‹ to +20‹C prior to, or during, the separation of the micro-organisms. It is stated that any buildup of growth-inhibiting material during the separation stage is avoided and contamination of the separation and recycle lines by undesirable anaerobic micro-organisms is discouraged as a result of the chilling. The hydrocarbon or oxygenated hydrocarbon may for example be natural gas, methane or methanol. The Examples relate to the continuous cultivation of a mixed culture of microorganisms comprising a methanol-utilizing bacterium and four non-methanol utilizing bacteria in methanolic culture medium, with recycle of the culture medium and recovery of the micro-organisms produced. The cultivation temperature was 40‹ or 42‹C and the chilling temperature 0‹C. Growth inhibition was encountered when recycling took place without the chilling according to the invention. [GB1528011A]
IE251/76A 1975-02-11 1976-02-09 Improvements in and relating to the continuous culture of micro-organisms IE42634B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5747/75A GB1528011A (en) 1975-02-11 1975-02-11 Continuous culture of micro-organisms

Publications (2)

Publication Number Publication Date
IE42634L true IE42634L (en) 1976-08-11
IE42634B1 IE42634B1 (en) 1980-09-24

Family

ID=9801902

Family Applications (1)

Application Number Title Priority Date Filing Date
IE251/76A IE42634B1 (en) 1975-02-11 1976-02-09 Improvements in and relating to the continuous culture of micro-organisms

Country Status (9)

Country Link
BE (1) BE838312A (en)
CA (1) CA1059049A (en)
DE (1) DE2604993A1 (en)
FR (1) FR2300803A1 (en)
GB (1) GB1528011A (en)
IE (1) IE42634B1 (en)
IT (1) IT1055875B (en)
NL (1) NL7601314A (en)
NO (1) NO760414L (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2492403A1 (en) * 1980-10-20 1982-04-23 Bel Fromageries PROCESS FOR THE CULTURE OF MICROORGANISMS, PARTICULARLY YEAST, ON WHEY WITH A ASSOCIATION OF WELL-SELECTED STRAINS AND STRAIN-SPECIFIC MUTANTS

Also Published As

Publication number Publication date
FR2300803A1 (en) 1976-09-10
FR2300803B1 (en) 1978-11-10
GB1528011A (en) 1978-10-11
CA1059049A (en) 1979-07-24
BE838312A (en) 1976-08-06
NL7601314A (en) 1976-08-13
IT1055875B (en) 1982-01-11
NO760414L (en) 1976-08-12
DE2604993A1 (en) 1976-08-19
IE42634B1 (en) 1980-09-24

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