IE32923L - Cultivation of micro-organisms - Google Patents
Cultivation of micro-organismsInfo
- Publication number
- IE32923L IE32923L IE681352A IE135268A IE32923L IE 32923 L IE32923 L IE 32923L IE 681352 A IE681352 A IE 681352A IE 135268 A IE135268 A IE 135268A IE 32923 L IE32923 L IE 32923L
- Authority
- IE
- Ireland
- Prior art keywords
- stage
- micro
- organism
- fermenter
- aqueous
- Prior art date
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, 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
- 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)
- Oil, Petroleum & Natural Gas (AREA)
- Analytical Chemistry (AREA)
- Immunology (AREA)
- Biophysics (AREA)
- Mycology (AREA)
- Food Science & Technology (AREA)
- Physics & Mathematics (AREA)
- Medicinal Chemistry (AREA)
- Tropical Medicine & Parasitology (AREA)
- Virology (AREA)
- Biomedical Technology (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (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]
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 true IE32923L (en) | 1969-05-27 |
IE32923B1 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)
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 |
-
1967
- 1967-11-27 GB GB53744/67A patent/GB1241957A/en not_active Expired
-
1968
- 1968-11-08 IE IE1352/68A patent/IE32923B1/en unknown
- 1968-11-18 IL IL31097A patent/IL31097A/en unknown
- 1968-11-21 NL NL6816623A patent/NL6816623A/xx unknown
- 1968-11-23 DE DE19681810586 patent/DE1810586A1/en active Pending
- 1968-11-25 ZM ZM164/68A patent/ZM16468A1/en unknown
- 1968-11-25 LU LU57379D patent/LU57379A1/xx unknown
- 1968-11-25 AT AT1142368A patent/AT290443B/en not_active IP Right Cessation
- 1968-11-25 SU SU1285522A patent/SU495843A3/en active
- 1968-11-26 CS CS8056A patent/CS161751B2/cs unknown
- 1968-11-26 TR TR17045A patent/TR17045A/en unknown
- 1968-11-26 FR FR1603540D patent/FR1603540A/fr not_active Expired
- 1968-11-26 DO DO1968001538A patent/DOP1968001538A/en unknown
- 1968-11-27 BE BE724512D patent/BE724512A/xx unknown
- 1968-11-27 SE SE16141/68A patent/SE358656B/xx unknown
- 1968-12-17 OA OA53454A patent/OA02957A/en unknown
Also Published As
Publication number | Publication date |
---|---|
ZM16468A1 (en) | 1969-07-17 |
DOP1968001538A (en) | 1974-01-09 |
IL31097A0 (en) | 1969-01-29 |
AT290443B (en) | 1971-06-11 |
TR17045A (en) | 1974-04-25 |
CS161751B2 (en) | 1975-06-10 |
IE32923B1 (en) | 1974-01-23 |
BE724512A (en) | 1969-05-27 |
DE1810586A1 (en) | 1969-07-10 |
NL6816623A (en) | 1969-05-29 |
OA02957A (en) | 1970-12-15 |
GB1241957A (en) | 1971-08-11 |
SE358656B (en) | 1973-08-06 |
IL31097A (en) | 1972-07-26 |
FR1603540A (en) | 1971-05-03 |
LU57379A1 (en) | 1969-03-03 |
SU495843A3 (en) | 1975-12-15 |
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