IE32923B1 - Improvements in or relating to the cultivation of microorganisms - Google Patents

Improvements in or relating to the cultivation of microorganisms

Info

Publication number
IE32923B1
IE32923B1 IE1352/68A IE135268A IE32923B1 IE 32923 B1 IE32923 B1 IE 32923B1 IE 1352/68 A IE1352/68 A IE 1352/68A IE 135268 A IE135268 A IE 135268A IE 32923 B1 IE32923 B1 IE 32923B1
Authority
IE
Ireland
Prior art keywords
stage
organism
micro
fermenter
aqueous
Prior art date
Application number
IE1352/68A
Other versions
IE32923L (en
Original Assignee
British Petroleum Co
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 British Petroleum Co filed Critical British Petroleum Co
Publication of IE32923L publication Critical patent/IE32923L/en
Publication of IE32923B1 publication Critical patent/IE32923B1/en

Links

Classifications

    • 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
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12C—BEER; PREPARATION OF BEER BY FERMENTATION; PREPARATION OF MALT FOR MAKING BEER; PREPARATION OF HOPS FOR MAKING BEER
    • C12C11/00—Fermentation processes for beer
    • C12C11/09—Fermentation with immobilised yeast
    • 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; 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
    • C12N1/28—Processes using, or culture media containing, hydrocarbons aliphatic

Landscapes

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

Abstract

1,241,957. Yeast etc. BRITISH PETROLEUM CO Ltd. Nov. 12, 1968 [Nov. 27 1967], No.53744/67. Heading C6F. A micro-organism is cultivated in the presence of a petroleum fraction consisting wholly or in part of straight chain hydrocarbons, an aqueous nutrient medium and a gas containing free oxygen, the petroleum fraction and aqueous medium being continuously fed to a fermenter containing the micro-organism wherein takes place a first stage of cultivation of the micro-organism, a product stream comprising the micro-organism is continuously passed to a second stage fermenter wherein the micro-organism is treated with a second stage aqueous nutrient medium which consists of a mixture of all or part of the aqueous nutrient medium withdrawn from the first stage fermenter together with additional water, and a product stream comprising micro-organism is continuously removed from the second stage fermenter and treated to recover the microorganism, and in the first stage of cultivation the amount of essential nutrients in the aqueous phase in the first stage fermenter is such that the rate of growth of the micro-organism is not impeded by shortage of nutrients and in the second stage the amount of at least one essential nutrient in the aqueous phase in the second stage fermenter is less than the amount required for unimpeded growth of the micro-organism in the first stage of cultivation and/or at least one essential nutrient which is present in the aqueous phase of the first stage fermenter is absent from the aqueous phase of the second stage fermenter. The second stage aqueous nutrient medium may consist of a mixture of all or part of the aqueous nutrient medium withdrawn from the first stage fermenter together with 1-8 times the volume of additional water, sufficient to reduce any toxin produced in the first stage aqueous nutrient medium to a level insufficient to substantially impede growth in the second stage. The dilution rate used in the operation in the second stage fermenter should not be lower than that used in the first stage fermenter. An example is directed to a two-stage cultivation of Candida tropicalis upon a gas-oil, in the second stage of which the aqueous nutrient medium was deficient in potassium and phosphorus (as phosphate). The cultivated micro-organism may be extracted with n-pentane or n-hexane. [GB1241957A]
IE1352/68A 1967-11-27 1968-11-08 Improvements in or relating to the cultivation of microorganisms IE32923B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB53744/67A GB1241957A (en) 1967-11-27 1967-11-27 Improvements in or relating to the cultivation of micro-organisms

Publications (2)

Publication Number Publication Date
IE32923L IE32923L (en) 1969-05-27
IE32923B1 true IE32923B1 (en) 1974-01-23

Family

ID=10468837

Family Applications (1)

Application Number Title Priority Date Filing Date
IE1352/68A IE32923B1 (en) 1967-11-27 1968-11-08 Improvements in or relating to the cultivation of microorganisms

Country Status (16)

Country Link
AT (1) AT290443B (en)
BE (1) BE724512A (en)
CS (1) CS161751B2 (en)
DE (1) DE1810586A1 (en)
DO (1) DOP1968001538A (en)
FR (1) FR1603540A (en)
GB (1) GB1241957A (en)
IE (1) IE32923B1 (en)
IL (1) IL31097A (en)
LU (1) LU57379A1 (en)
NL (1) NL6816623A (en)
OA (1) OA02957A (en)
SE (1) SE358656B (en)
SU (1) SU495843A3 (en)
TR (1) TR17045A (en)
ZM (1) ZM16468A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2125195A1 (en) * 1971-02-18 1972-09-29 Inst Biosinteza Belk Microbiological petroleum distillate de waxing - with reduced nitrogen in nutrient medium to raise lipid product concn

Also Published As

Publication number Publication date
IL31097A (en) 1972-07-26
DE1810586A1 (en) 1969-07-10
AT290443B (en) 1971-06-11
SE358656B (en) 1973-08-06
BE724512A (en) 1969-05-27
CS161751B2 (en) 1975-06-10
DOP1968001538A (en) 1974-01-09
NL6816623A (en) 1969-05-29
FR1603540A (en) 1971-05-03
LU57379A1 (en) 1969-03-03
IL31097A0 (en) 1969-01-29
SU495843A3 (en) 1975-12-15
OA02957A (en) 1970-12-15
ZM16468A1 (en) 1969-07-17
IE32923L (en) 1969-05-27
GB1241957A (en) 1971-08-11
TR17045A (en) 1974-04-25

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