FR2268075A1 - - Google Patents

Info

Publication number
FR2268075A1
FR2268075A1 FR7512371A FR7512371A FR2268075A1 FR 2268075 A1 FR2268075 A1 FR 2268075A1 FR 7512371 A FR7512371 A FR 7512371A FR 7512371 A FR7512371 A FR 7512371A FR 2268075 A1 FR2268075 A1 FR 2268075A1
Authority
FR
France
Prior art keywords
organisms
micro
hydrocarbon
phosphatidic
solvent
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.)
Withdrawn
Application number
FR7512371A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PETROLCHEMISCHES KOMBINAT
Original Assignee
PETROLCHEMISCHES KOMBINAT
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 PETROLCHEMISCHES KOMBINAT filed Critical PETROLCHEMISCHES KOMBINAT
Publication of FR2268075A1 publication Critical patent/FR2268075A1/fr
Withdrawn legal-status Critical Current

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
    • C12N1/26—Processes using, or culture media containing, hydrocarbons
    • 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
    • C12N1/02—Separating microorganisms from their culture media

Abstract

1501512 Recovering micro-organisms from hydrocarbon fermentations PETROLCHEMISCHES KOMBINAT SCHWEDT VEB 16 April 1975 [29 April 1974] 15710/75 Heading C6F A process for the separation of micro-organisms e.g. yeast from a culture medium in the aerobic fermentation of the micro-organisms in liquid hydrocarbons in the presence of an aqueous nutrient solution involves emulsifying the culture medium and adding to the emulsion 0À1 to 5À0 g per kg of a separating agent which is a phosphatidic hydrocarbon extract obtained where microorganisms cultivated in a liquid hydrocarbon distillate are purified by extraction (see below), the micro-organisms being removed by phase separation after about 3 minutes. The biomass is recovered from the aqueous phase and dried, and the dried biomass is further purified by extraction with a solvent in order to remove any petroleum distillate still present. From the resulting extract after removal of the solvent by distillation or acetone precipitation there is obtained the solvent-free phosphatidic hydrocarbon extract for use as the separating agent in the process. In an Example, the phosphatidic hydrocarbon extract consisted of a 1% solution in petroleum distillate of 18À0% phosphatides of the lecithin type, 17À0% phosphatides of the kephalin type, 32À4% triglycerides, diglycerides, monoglycerides and free fatty acids, 0À6% steatin and ubiquinone, and 32À0% hydrocarbons.
FR7512371A 1974-04-29 1975-04-21 Withdrawn FR2268075A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD17817074 1974-04-29

Publications (1)

Publication Number Publication Date
FR2268075A1 true FR2268075A1 (en) 1975-11-14

Family

ID=5495544

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7512371A Withdrawn FR2268075A1 (en) 1974-04-29 1975-04-21

Country Status (5)

Country Link
BG (1) BG22922A1 (en)
DE (1) DE2513354A1 (en)
FR (1) FR2268075A1 (en)
GB (1) GB1501512A (en)
RO (1) RO72527A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2329740A1 (en) * 1975-10-31 1977-05-27 Petrolchemisches Kombinat ADDITIVE FOR IMPROVING COMBUSTIBILITY AND REDUCING WEAR CAUSED BY MINERAL OILS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2329740A1 (en) * 1975-10-31 1977-05-27 Petrolchemisches Kombinat ADDITIVE FOR IMPROVING COMBUSTIBILITY AND REDUCING WEAR CAUSED BY MINERAL OILS

Also Published As

Publication number Publication date
BG22922A1 (en) 1977-05-20
RO72527A (en) 1983-07-07
DE2513354A1 (en) 1975-11-06
RO72527B (en) 1983-06-30
GB1501512A (en) 1978-02-15

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Legal Events

Date Code Title Description
RE Withdrawal of published application