FR2421942A1 - BIOMASS CONCENTRATION PROCESS - Google Patents

BIOMASS CONCENTRATION PROCESS

Info

Publication number
FR2421942A1
FR2421942A1 FR7908902A FR7908902A FR2421942A1 FR 2421942 A1 FR2421942 A1 FR 2421942A1 FR 7908902 A FR7908902 A FR 7908902A FR 7908902 A FR7908902 A FR 7908902A FR 2421942 A1 FR2421942 A1 FR 2421942A1
Authority
FR
France
Prior art keywords
current
suspension
action
concentration process
biomass concentration
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Withdrawn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
FR7908902A
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.)
Hoechst AG
Original Assignee
Hoechst AG
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 Hoechst AG filed Critical Hoechst AG
Publication of FR2421942A1 publication Critical patent/FR2421942A1/en
Withdrawn legal-status Critical Current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
    • C12M47/00—Means for after-treatment of the produced biomass or of the fermentation or metabolic products, e.g. storage of biomass
    • C12M47/02—Separating microorganisms from the culture medium; Concentration of biomass
    • 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
    • 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
    • C12N13/00—Treatment of microorganisms or enzymes with electrical or wave energy, e.g. magnetism, sonic waves

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Organic Chemistry (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Biotechnology (AREA)
  • Genetics & Genomics (AREA)
  • General Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Microbiology (AREA)
  • Tropical Medicine & Parasitology (AREA)
  • Medicinal Chemistry (AREA)
  • Sustainable Development (AREA)
  • Virology (AREA)
  • Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

Procédé de concentration de biomasses par coagulation de la matière solide d'une suspension de fermentation sous l'action d'un courant électrique. On soumet la suspension à l'action d'un courant électrique ayant une fréquence de 0 à 2 000 Hz, de préférence de 0 à 50 Hz, en particulier de 0 Hz (le courant étant alors un courant continu) avec une densité de courant pouvant aller jusqu'à 10 mA/cm**2, et à une température de 20 à 100 degrés C. On opère par exemple en discontinu avec agitation ou circulation de la suspension, dans une cellule en forme d'auge 1. Application au traitement des suspensions de micro-organismes provenant de réaction de fermentation, tels que des bactéries, des levures ou des mycètes.Process for the concentration of biomass by coagulation of the solid matter of a fermentation suspension under the action of an electric current. The suspension is subjected to the action of an electric current having a frequency of 0 to 2000 Hz, preferably 0 to 50 Hz, in particular 0 Hz (the current then being a direct current) with a current density up to 10 mA / cm ** 2, and at a temperature of 20 to 100 degrees C. For example, the operation is carried out batchwise with stirring or circulation of the suspension, in a trough-shaped cell 1. Application to treatment of suspensions of microorganisms resulting from fermentation reactions, such as bacteria, yeasts or fungi.

FR7908902A 1978-04-07 1979-04-09 BIOMASS CONCENTRATION PROCESS Withdrawn FR2421942A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782815030 DE2815030A1 (en) 1978-04-07 1978-04-07 PROCESS FOR ENRICHMENT OF BIOMASS

Publications (1)

Publication Number Publication Date
FR2421942A1 true FR2421942A1 (en) 1979-11-02

Family

ID=6036377

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7908902A Withdrawn FR2421942A1 (en) 1978-04-07 1979-04-09 BIOMASS CONCENTRATION PROCESS

Country Status (12)

Country Link
JP (1) JPS54138186A (en)
AT (1) AT374494B (en)
BE (1) BE875432A (en)
BR (1) BR7902147A (en)
CA (1) CA1128462A (en)
DD (1) DD142719A5 (en)
DE (1) DE2815030A1 (en)
FR (1) FR2421942A1 (en)
GB (1) GB2018287B (en)
NL (1) NL7902724A (en)
NO (1) NO791169L (en)
SU (1) SU902673A3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2513087A1 (en) * 1981-09-18 1983-03-25 Int Marketing Conseil Sterilising fluids esp. edible liq. such as fruit juice, milk etc. - by passage between electrodes connected to low voltage pulsed supply

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2516503B1 (en) * 1981-11-16 1988-03-18 Wehrlen Roland BACTERIAL ACTIVATION PROCESS IN ORGANIC MATERIAL
EP0216874B1 (en) * 1985-04-09 1989-11-08 VOEST-ALPINE Aktiengesellschaft Process for the simultaneous production of alcohol and protein-rich fodder
AU5344094A (en) * 1992-10-15 1994-05-09 Richter Gedeon Vegyeszeti Gyar Rt. Process for intensification of fermentations
JPH0994288A (en) * 1995-09-28 1997-04-08 Rimoderingu Touentei One:Kk Method for inactivating and destructing microbes
CN1298501C (en) 2001-05-30 2007-02-07 新日本制铁株式会社 Rail producing method and producing equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2513087A1 (en) * 1981-09-18 1983-03-25 Int Marketing Conseil Sterilising fluids esp. edible liq. such as fruit juice, milk etc. - by passage between electrodes connected to low voltage pulsed supply

Also Published As

Publication number Publication date
GB2018287A (en) 1979-10-17
JPS54138186A (en) 1979-10-26
SU902673A3 (en) 1982-01-30
DE2815030A1 (en) 1979-10-18
NL7902724A (en) 1979-10-09
AT374494B (en) 1984-04-25
BE875432A (en) 1979-10-09
GB2018287B (en) 1982-07-28
ATA252879A (en) 1983-09-15
CA1128462A (en) 1982-07-27
BR7902147A (en) 1979-12-04
DD142719A5 (en) 1980-07-09
NO791169L (en) 1979-10-09

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Legal Events

Date Code Title Description
ST Notification of lapse