GB960099A - Fermentation process - Google Patents

Fermentation process

Info

Publication number
GB960099A
GB960099A GB1465963A GB1465963A GB960099A GB 960099 A GB960099 A GB 960099A GB 1465963 A GB1465963 A GB 1465963A GB 1465963 A GB1465963 A GB 1465963A GB 960099 A GB960099 A GB 960099A
Authority
GB
United Kingdom
Prior art keywords
water
condensation product
soluble condensation
molecular weight
production
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.)
Expired
Application number
GB1465963A
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.)
Bristol Myers Co
Original Assignee
Bristol Myers 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 Bristol Myers Co filed Critical Bristol Myers Co
Publication of GB960099A publication Critical patent/GB960099A/en
Expired 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
    • C12N1/38—Chemical stimulation of growth or activity by addition of chemical compounds which are not essential growth factors; Stimulation of growth by removal of a chemical compound
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/02—Foam dispersion or prevention
    • B01D19/04—Foam dispersion or prevention by addition of chemical substances
    • B01D19/0404—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance

Abstract

A process for producing chemicals, particularly antibiotics, by submerged aerobic fermentation of a microorganism includes the step of adding to the fermentation medium in an amount sufficient to prevent or reduce surface foam therein without simultaneously decreasing significantly the amount of dissolved oxygen or the oxygen transfer rate in the fermentation medium, as defoaming agent a water-soluble condensation product of ethylene oxide with a water-insoluble, hydrophobic polyoxypropylene chain formed by condensing propylene oxide with propylene glycol, the water-soluble condensation product having a molecular weight from 1600 to 2800 and the hydrophobic chain having a molecular weight from 1500 to 2500 and constituting about 90% by weight of the water-soluble condensation product. The process may be employed for the production of penicillins and tetracyclines; examples describe the production of 6-amino-penicillanic acid.
GB1465963A 1962-04-16 1963-04-11 Fermentation process Expired GB960099A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18796162A 1962-04-16 1962-04-16

Publications (1)

Publication Number Publication Date
GB960099A true GB960099A (en) 1964-06-10

Family

ID=22691206

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1465963A Expired GB960099A (en) 1962-04-16 1963-04-11 Fermentation process

Country Status (3)

Country Link
DK (1) DK105151C (en)
ES (1) ES287032A1 (en)
GB (1) GB960099A (en)

Also Published As

Publication number Publication date
ES287032A1 (en) 1963-12-01
DK105151C (en) 1966-08-29

Similar Documents

Publication Publication Date Title
SE8304108L (en) CHEMICAL INTERMEDIATE
GB960099A (en) Fermentation process
JPS5337189A (en) Production of surfactant
AT309361B (en) Process for the production of alcoholic or non-alcoholic fermented drinks
NO179481C (en) Use of ester polyol-containing reaction mixtures as antifoaming additives
GB1398445A (en) Permanently antistatic acrylonitrile polymers
FI831933A0 (en) FRAMEWORK FOR FOAM FRAMEWORK, ORGANIC WASTE PERFORMANCE
US3142628A (en) Process of reducing foam in submerges
GB1374360A (en) Transesterification of quinoxaline-2-carboxylic acid esters
FR2012122A1 (en) Cephalosporin c derivs
JPS5736981A (en) Solution composition of liquefied spirulina and its preparation
JPS5272886A (en) Preparation of cephalosporin compound
Sagidullaev et al. Heterotrophic Microflora of Amu Darya Reservoirs and its Role in Mineralization of Organic Matter
GB917387A (en) Process for the production of polyethylene
GB962943A (en) Improvements in or relating to the preparation of penicillins
FR2032598A5 (en) Continuous fermentation of molasses and - other alcohol formers
FR2087989A1 (en) Fungicidal antibiotic
FR2138498A1 (en) Ampicillin alkyl sulphamic acid salts - prolonged release antibiotics
JPS5233213A (en) Driving wheel of conveying carriage
GB964623A (en) Improved process for the production of l-glutamic acid
GB1412339A (en) Antibiotic thermozymocidin and a process for its preparation
NL7006101A (en) Fungicidal antibiotic
JPS51112594A (en) Process for preparing cephalosporin derivatives
BE778222A (en) PROCESS FOR SEPARATION OF THE MAIN PRODUCTS OF THE REACTION OF FORMALDEHYDE WITH ACETALDEHYDE IN AN ALKALINE MEDIUM
IT1045509B (en) Fermentation of aldose to esp gluconic acid