NO921550L - DEHALOGENATION OF ORGANO-HALOGENOUS COMPOUNDS - Google Patents
DEHALOGENATION OF ORGANO-HALOGENOUS COMPOUNDSInfo
- Publication number
- NO921550L NO921550L NO92921550A NO921550A NO921550L NO 921550 L NO921550 L NO 921550L NO 92921550 A NO92921550 A NO 92921550A NO 921550 A NO921550 A NO 921550A NO 921550 L NO921550 L NO 921550L
- Authority
- NO
- Norway
- Prior art keywords
- nitrogen
- dehalogenation
- free organohalogen
- microorganism
- composition
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
- D21H25/02—Chemical or biochemical treatment
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Abstract
Enzymatisk dehalogenering av uønskede nltrogenfrie organohalogenforbindelser utføres ved tilsetning av en dehalogenase til en vandig sammensetning omfattende en nitrogenfri organohalogenforbindelse og en nitrogen- holdig kationlsk polymer. Den enzymatiske dehaloge- neringen av den nltrogenfrie organohalogenforbindelsen oppnås uten noen vesentlig effekt på den nltrogenfrie organohalogenforbindelsen. Dehalogeneringen kan utføres via kontinuerlige, satsvise eller halvkontinuerlige prosesser. Sammensetningen er spesielt nyttig som en papirvåt- styrkeformulering og er nyttig i kommersielle papir- fremstillingsprosesser. Det resulterende papirproduktet omfatter en rest av en mikroorganisme. Enzymet oppnås fortrinnsvis fra en biokatalysator, og enda mer foretrukket fra en mikroorganisme. Satsvls anrikning av en kultur av en dehalogenaseholdig mikroorganisme gir en sammensetning som i det vesent- lige kan eliminere tilstedeværelsen av nitrogenfrie organohalogenforbindelser som anses for å være forurensninger. Cellekonsentrasjoner på over 5 x 107 celler/ml tilveiebringes.Enzymatic dehalogenation of unwanted nitrogen-free organohalogen compounds is carried out by adding a dehalogenase to an aqueous composition comprising a nitrogen-free organohalogen compound and a nitrogen-containing cationic polymer. The enzymatic dehalogenation of the nitrogen-free organohalogen compound is achieved without any significant effect on the nitrogen-free organohalogen compound. The dehalogenation can be carried out via continuous, batch or semi-continuous processes. The composition is particularly useful as a paper wet strength formulation and is useful in commercial paper making processes. The resulting paper product comprises a residue of a microorganism. The enzyme is preferably obtained from a biocatalyst, and even more preferably from a microorganism. The batch enrichment of a culture of a dehalogenase-containing microorganism provides a composition that can substantially eliminate the presence of nitrogen-free organohalogen compounds considered to be contaminants. Cell concentrations greater than 5 x 10 7 cells / ml are obtained.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US69076591A | 1991-04-24 | 1991-04-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO921550D0 NO921550D0 (en) | 1992-04-22 |
| NO921550L true NO921550L (en) | 1992-10-26 |
Family
ID=24773864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO92921550A NO921550L (en) | 1991-04-24 | 1992-04-22 | DEHALOGENATION OF ORGANO-HALOGENOUS COMPOUNDS |
Country Status (4)
| Country | Link |
|---|---|
| KR (1) | KR920020017A (en) |
| BR (1) | BR9201526A (en) |
| NO (1) | NO921550L (en) |
| ZA (1) | ZA922999B (en) |
-
1992
- 1992-04-22 NO NO92921550A patent/NO921550L/en unknown
- 1992-04-23 KR KR1019920006882A patent/KR920020017A/en not_active Application Discontinuation
- 1992-04-24 BR BR929201526A patent/BR9201526A/en not_active Application Discontinuation
- 1992-04-24 ZA ZA922999A patent/ZA922999B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NO921550D0 (en) | 1992-04-22 |
| KR920020017A (en) | 1992-11-20 |
| BR9201526A (en) | 1992-11-24 |
| ZA922999B (en) | 1993-04-28 |
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