FR2384020A1 - Procede pour la production de polysaccharide - Google Patents
Procede pour la production de polysaccharideInfo
- Publication number
- FR2384020A1 FR2384020A1 FR7806626A FR7806626A FR2384020A1 FR 2384020 A1 FR2384020 A1 FR 2384020A1 FR 7806626 A FR7806626 A FR 7806626A FR 7806626 A FR7806626 A FR 7806626A FR 2384020 A1 FR2384020 A1 FR 2384020A1
- Authority
- FR
- France
- Prior art keywords
- polysaccharide
- viscosity
- protease
- solution
- cultivation
- 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- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P19/00—Preparation of compounds containing saccharide radicals
- C12P19/04—Polysaccharides, i.e. compounds containing more than five saccharide radicals attached to each other by glycosidic bonds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S435/00—Chemistry: molecular biology and microbiology
- Y10S435/813—Continuous fermentation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S435/00—Chemistry: molecular biology and microbiology
- Y10S435/8215—Microorganisms
- Y10S435/822—Microorganisms using bacteria or actinomycetales
- Y10S435/831—Azotobacter
Landscapes
- Organic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Zoology (AREA)
- Wood Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- General Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biotechnology (AREA)
- Biochemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Microbiology (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Enzymes And Modification Thereof (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
Abstract
Ce procédé de traitement d'une solution de polysaccharide a pour but d'en augmenter la viscosité. La viscosité de la solution d'un polysaccharide, à savoir un alginate microbien produit par la culture de souches d'Azotobacter vinelandii, est contrôlée par addition d'une protéase au bouillon de culture. On peut ajouter la protéase pendant la culture, afin d'obtenir un polysaccharide de viscosité plus élevée. A la place ou en plus, on peut aussi ajouter la protéase après la culture, mais avant que le polysaccharide ne soit isolé du bouillon, par exemple pour empêcher une baisse de viscosité au cours de l'entreposage. Des protéases neutres et alcalines possédant une activité aux alentours du pH 7 conviennent particulièrement bien.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB10695/77A GB1548078A (en) | 1977-03-14 | 1977-03-14 | Process for the production of polysaccarides of controlled viscosity |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2384020A1 true FR2384020A1 (fr) | 1978-10-13 |
Family
ID=9972599
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7806626A Withdrawn FR2384020A1 (fr) | 1977-03-14 | 1978-03-08 | Procede pour la production de polysaccharide |
Country Status (17)
Country | Link |
---|---|
US (1) | US4234688A (fr) |
JP (1) | JPS53113854A (fr) |
AU (1) | AU3410978A (fr) |
BE (1) | BE864823A (fr) |
DE (1) | DE2809777C3 (fr) |
DK (1) | DK111278A (fr) |
FI (1) | FI780797A (fr) |
FR (1) | FR2384020A1 (fr) |
GB (1) | GB1548078A (fr) |
IL (1) | IL54259A0 (fr) |
IT (1) | IT7821133A0 (fr) |
LU (1) | LU79222A1 (fr) |
NL (1) | NL7802767A (fr) |
NO (1) | NO780862L (fr) |
NZ (1) | NZ186676A (fr) |
SE (1) | SE7802840L (fr) |
ZA (1) | ZA781472B (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0078621A1 (fr) * | 1981-10-29 | 1983-05-11 | Kelco Biospecialties Limited | Traitement de solutions de gomme de Xanthane |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN86100490B (zh) * | 1986-04-08 | 1987-09-30 | 相振华 | 利用抗氨固氮菌生产富硒单细胞蛋白, 维生素e和菌肥的方法 |
JPS63226220A (ja) * | 1987-03-17 | 1988-09-20 | 明治製菓株式会社 | 果物の品質改良方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB995699A (en) * | 1962-04-04 | 1965-06-23 | Pierre Henri Lallouette | Bacterial lysate or fraction thereof |
FR2051711A1 (fr) * | 1969-07-12 | 1971-04-09 | Pfizer | |
FR2264077A1 (fr) * | 1974-03-11 | 1975-10-10 | Kelco Co | |
FR2391277A1 (fr) * | 1977-05-16 | 1978-12-15 | Shell Int Research | Clarification d'une solution de polymere produite de maniere microbienne |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS537519B2 (fr) * | 1973-05-29 | 1978-03-18 | ||
GB1513104A (en) * | 1976-05-28 | 1978-06-07 | Tate & Lyle Ltd | Process for the production of polysaccharide |
US4094739A (en) * | 1976-12-27 | 1978-06-13 | The Lubrizol Corporation | Method for purifying microbial polysaccharides |
-
1977
- 1977-03-14 GB GB10695/77A patent/GB1548078A/en not_active Expired
-
1978
- 1978-03-07 DE DE2809777A patent/DE2809777C3/de not_active Expired
- 1978-03-08 FR FR7806626A patent/FR2384020A1/fr not_active Withdrawn
- 1978-03-10 US US05/885,272 patent/US4234688A/en not_active Expired - Lifetime
- 1978-03-13 DK DK111278A patent/DK111278A/da not_active Application Discontinuation
- 1978-03-13 NO NO780862A patent/NO780862L/no unknown
- 1978-03-13 IT IT7821133A patent/IT7821133A0/it unknown
- 1978-03-13 LU LU79222A patent/LU79222A1/fr unknown
- 1978-03-13 SE SE7802840A patent/SE7802840L/xx unknown
- 1978-03-13 NZ NZ186676A patent/NZ186676A/xx unknown
- 1978-03-13 IL IL54259A patent/IL54259A0/xx unknown
- 1978-03-13 BE BE185877A patent/BE864823A/fr unknown
- 1978-03-14 JP JP2977478A patent/JPS53113854A/ja active Granted
- 1978-03-14 AU AU34109/78A patent/AU3410978A/en active Pending
- 1978-03-14 ZA ZA00781472A patent/ZA781472B/xx unknown
- 1978-03-14 NL NL7802767A patent/NL7802767A/xx not_active Application Discontinuation
- 1978-03-14 FI FI780797A patent/FI780797A/fi not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB995699A (en) * | 1962-04-04 | 1965-06-23 | Pierre Henri Lallouette | Bacterial lysate or fraction thereof |
FR2051711A1 (fr) * | 1969-07-12 | 1971-04-09 | Pfizer | |
FR2264077A1 (fr) * | 1974-03-11 | 1975-10-10 | Kelco Co | |
FR2391277A1 (fr) * | 1977-05-16 | 1978-12-15 | Shell Int Research | Clarification d'une solution de polymere produite de maniere microbienne |
Non-Patent Citations (1)
Title |
---|
CA1972 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0078621A1 (fr) * | 1981-10-29 | 1983-05-11 | Kelco Biospecialties Limited | Traitement de solutions de gomme de Xanthane |
Also Published As
Publication number | Publication date |
---|---|
LU79222A1 (fr) | 1978-06-28 |
JPS5632917B2 (fr) | 1981-07-30 |
DK111278A (da) | 1978-09-15 |
US4234688A (en) | 1980-11-18 |
IT7821133A0 (it) | 1978-03-13 |
ZA781472B (en) | 1979-03-28 |
DE2809777C3 (de) | 1980-11-13 |
DE2809777B2 (de) | 1980-03-20 |
AU3410978A (en) | 1979-09-20 |
IL54259A0 (en) | 1978-06-15 |
NZ186676A (en) | 1979-06-08 |
GB1548078A (en) | 1979-07-04 |
NO780862L (no) | 1978-09-15 |
DE2809777A1 (de) | 1978-09-21 |
JPS53113854A (en) | 1978-10-04 |
NL7802767A (nl) | 1978-09-18 |
BE864823A (fr) | 1978-07-03 |
FI780797A (fi) | 1978-09-15 |
SE7802840L (sv) | 1978-09-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |