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SE8301975D0 - MANUFACTURING AND USING BIOPOLYMERS - Google Patents

MANUFACTURING AND USING BIOPOLYMERS

Info

Publication number
SE8301975D0
SE8301975D0 SE8301975A SE8301975A SE8301975D0 SE 8301975 D0 SE8301975 D0 SE 8301975D0 SE 8301975 A SE8301975 A SE 8301975A SE 8301975 A SE8301975 A SE 8301975A SE 8301975 D0 SE8301975 D0 SE 8301975D0
Authority
SE
Sweden
Prior art keywords
bacterium
carbon source
polymer
hours
aqueous medium
Prior art date
Application number
SE8301975A
Other languages
Swedish (sv)
Inventor
A Norberg
N Molin
I Wiberger
Original Assignee
Chemical Dynamics Sweden Ab
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 Chemical Dynamics Sweden Ab filed Critical Chemical Dynamics Sweden Ab
Priority to SE8301975A priority Critical patent/SE8301975D0/en
Publication of SE8301975D0 publication Critical patent/SE8301975D0/en
Priority to SE8401378A priority patent/SE8401378L/en
Priority to GB08408252A priority patent/GB2139638B/en
Priority to FR8405680A priority patent/FR2543973A1/en
Priority to DE19843413687 priority patent/DE3413687A1/en

Links

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  • Organic Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Zoology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Microbiology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Biotechnology (AREA)
  • Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)

Abstract

A process for microbial production of polysaccharides by means of the bacterium Zoogloea ramigera strain 115, which comprises (A) propagating Zoogloea ramigera in a sterile aqueous medium containing a carbon source such as glucose, starch or potatoes, a nitrogen source such as ammonium chloride, ammonium nitrate or potassium nitrate, nutrient salts such as phosphates and sulphates, and an iron salt such as FeCl3 or Fe2(SO4)3 at a concentration of 0.15-45 mg/l, preferably 0.5-5 mg/l, whereby a dense suspension of said bacterium is obtained, and (B) transferring said suspension to a fermentor containing a sterile aqueous medium with the above composition and an initial concentration of carbon source of about 10-50 g per litre, in which fermentor the bacterium is allowed during about 20-60 hours, preferably 30-50 hours, to consume mainly the whole carbon source added whereby a low viscosity product containing 10-35 g/l polymer is obtained, said polymer being present in the form of capsules. <IMAGE>
SE8301975A 1983-04-11 1983-04-11 MANUFACTURING AND USING BIOPOLYMERS SE8301975D0 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE8301975A SE8301975D0 (en) 1983-04-11 1983-04-11 MANUFACTURING AND USING BIOPOLYMERS
SE8401378A SE8401378L (en) 1983-04-11 1984-03-13 PROCEDURE FOR MICROBIAL PREPARATION OF POLYSACcharides
GB08408252A GB2139638B (en) 1983-04-11 1984-03-30 Improvements in or relating to a process for microbial production of polysaccharides
FR8405680A FR2543973A1 (en) 1983-04-11 1984-04-10 BACTERIOLOGICAL PROCESS FOR THE PREPARATION OF POLYSACCHARIDES
DE19843413687 DE3413687A1 (en) 1983-04-11 1984-04-11 METHOD FOR THE MICROBIAL PRODUCTION OF POLYSACCHARIDES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8301975A SE8301975D0 (en) 1983-04-11 1983-04-11 MANUFACTURING AND USING BIOPOLYMERS

Publications (1)

Publication Number Publication Date
SE8301975D0 true SE8301975D0 (en) 1983-04-11

Family

ID=20350731

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8301975A SE8301975D0 (en) 1983-04-11 1983-04-11 MANUFACTURING AND USING BIOPOLYMERS

Country Status (4)

Country Link
DE (1) DE3413687A1 (en)
FR (1) FR2543973A1 (en)
GB (1) GB2139638B (en)
SE (1) SE8301975D0 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4851393A (en) * 1986-07-28 1989-07-25 Massachusetts Institute Of Technology Method for utilizing an exocellular polysaccharide isolated from zoogloea ramigera
WO1989009270A1 (en) * 1988-03-22 1989-10-05 Massachusetts Institute Of Technology Method for altering surface charge of microorganisms
US5118803A (en) * 1990-09-13 1992-06-02 Wisconsin Alumni Research Foundation Zooglan polysaccharide
CN104310442B (en) * 2014-10-10 2016-03-09 诺贝丰（中国）化学有限公司 Concentrated, the vacuum crystallization system of the continuous triple effect of ammonium chloride pump circulation and technique in a kind of double decomposition Production of Potassium Nitrate
CN104310439B (en) * 2014-10-10 2016-03-16 诺贝丰（中国）化学有限公司 Wastewater recycling system and method in a kind of saltpetre combined producting ammonium chloride production
CN104310438B (en) * 2014-10-10 2016-05-04 诺贝丰（中国）化学有限公司 A kind of system and method for continous way preparing potassium nitrate by means of double decomposition

Also Published As

Publication number Publication date
FR2543973A1 (en) 1984-10-12
GB2139638B (en) 1986-04-09
DE3413687A1 (en) 1985-01-24
GB8408252D0 (en) 1984-05-10
GB2139638A (en) 1984-11-14

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