FR2086927A5 - Glucose-isomerase prepn using streptomyces - Google Patents

Glucose-isomerase prepn using streptomyces

Info

Publication number
FR2086927A5
FR2086927A5 FR7013389A FR7013389A FR2086927A5 FR 2086927 A5 FR2086927 A5 FR 2086927A5 FR 7013389 A FR7013389 A FR 7013389A FR 7013389 A FR7013389 A FR 7013389A FR 2086927 A5 FR2086927 A5 FR 2086927A5
Authority
FR
France
Prior art keywords
hydrolysate
pref
glucose
streptomyces
growth
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
FR7013389A
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.)
Standard Brands Inc
Original Assignee
Standard Brands Inc
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 Standard Brands Inc filed Critical Standard Brands Inc
Priority to FR7013389A priority Critical patent/FR2086927A5/en
Application granted granted Critical
Publication of FR2086927A5 publication Critical patent/FR2086927A5/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
    • 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
    • C12N1/20—Bacteria; Culture media therefor
    • 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
    • C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
    • C12N9/90—Isomerases (5.)
    • C12N9/92—Glucose isomerase (5.3.1.5; 5.3.1.9; 5.3.1.18)

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Zoology (AREA)
  • Wood Science & Technology (AREA)
  • Genetics & Genomics (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Biotechnology (AREA)
  • Biomedical Technology (AREA)
  • Microbiology (AREA)
  • Medicinal Chemistry (AREA)
  • Biochemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Virology (AREA)
  • Tropical Medicine & Parasitology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Molecular Biology (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)

Abstract

Micro-organisms of the genus Streptomyces are cultured in stages under submerted aerobic conditions in an aqueous nutrient medium, whereby in at least the last growth-stage a carbohydrate source is present, obtained from a hydrolysate of a xylan-contg. material. Pref. hydrolysate is an acid hydrolysate and micro-organisms used are pref. able to assimilate xylan. Pref. microorganisms are Streptomyces ATCC 21175 and ATCC 21176. The acid hydrolysate used may be a filtered, non-purified hydrolysate obtained by acid hydrolysis of cotton seed husks, rough fibres from wet-milled maize, etc. In the initial growth stages ca 0.05-0.25% of a non-nutrient material such as carboxymethylcellulose is pref. added to encourage the growth of a fibrous mycelium. The glucose-isomerase produced is used for the isomerisation of glucose in glucose syrup for the foodstuff industry. The process is economical and gives high yields.
FR7013389A 1970-04-14 1970-04-14 Glucose-isomerase prepn using streptomyces Expired FR2086927A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7013389A FR2086927A5 (en) 1970-04-14 1970-04-14 Glucose-isomerase prepn using streptomyces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7013389A FR2086927A5 (en) 1970-04-14 1970-04-14 Glucose-isomerase prepn using streptomyces

Publications (1)

Publication Number Publication Date
FR2086927A5 true FR2086927A5 (en) 1971-12-31

Family

ID=9053922

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7013389A Expired FR2086927A5 (en) 1970-04-14 1970-04-14 Glucose-isomerase prepn using streptomyces

Country Status (1)

Country Link
FR (1) FR2086927A5 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2590904A1 (en) * 1985-12-04 1987-06-05 Orstom Inst Fs Rech Scien METHOD FOR CULTURING MICROORGANISMS, AND PREPARATION OF INOCULUMS COMPRISING THESE MICROORGANISMS, INOCULUM OBTAINED AND ITS APPLICATION

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2590904A1 (en) * 1985-12-04 1987-06-05 Orstom Inst Fs Rech Scien METHOD FOR CULTURING MICROORGANISMS, AND PREPARATION OF INOCULUMS COMPRISING THESE MICROORGANISMS, INOCULUM OBTAINED AND ITS APPLICATION
WO1987003616A1 (en) * 1985-12-04 1987-06-18 Institut Francais De Recherche Scientifique Pour L Method for cultivating microorganisms, particularly of the frankia group and preparation of bacterial inoculums

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Legal Events

Date Code Title Description
ST Notification of lapse