BE1028503B1 - Method of pretreatment of lignocellulose - Google Patents
Method of pretreatment of lignocelluloseInfo
- Publication number
- BE1028503B1 BE1028503B1 BE20205835A BE202005835A BE1028503B1 BE 1028503 B1 BE1028503 B1 BE 1028503B1 BE 20205835 A BE20205835 A BE 20205835A BE 202005835 A BE202005835 A BE 202005835A BE 1028503 B1 BE1028503 B1 BE 1028503B1
- Authority
- BE
- Belgium
- Prior art keywords
- hydrogen peroxide
- edta
- lignotin
- lignocosis
- hegoctic
- Prior art date
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
- C12P19/02—Monosaccharides
-
- 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
- C12P19/14—Preparation of compounds containing saccharide radicals produced by the action of a carbohydrase (EC 3.2.x), e.g. by alpha-amylase, e.g. by cellulase, hemicellulase
-
- 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
- C12P2201/00—Pretreatment of cellulosic or lignocellulosic material for subsequent enzymatic treatment or hydrolysis
Landscapes
- 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)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
Die Erfindung betrifft ein Vorbehandlungsverfahren aus hegoctischer Zellulose, bei dem der Rohstoff aus Holzzellulose nach dem Entbrünen, Trocknen und Zerkleinern mit EDTA-2Na vermischt, deionisiertes Wasser hinzugefügt und die Temperaturrührreaktion 1 bis 3 Stunden unter Bedingungen von 25 bis 35 Grad C, der vorgewaschenen Kannose, gehalten wird; Die Erfindung, die von EDTA-2Na vorgewaschen wurde, eliminiert die katalytische Risswirkung von Metallionen auf Wasserstoffperoxid, minimiert den unnötigen Verbrauch von Wasserstoffperoxid und das Vorhandensein von Magnesium/Zink-Ionen und Eisenionenplasma im System hemmt Die Cellulase in einem bestimmten Konzentrationsbereich, so dass Wasserstoffperoxid vollständig auf Lignotin wirkt, was die Umwandlungsrate von Lignokosese erheblich verbessern kann.The invention relates to a hegoctic cellulose pretreatment method, in which the wood cellulose raw material after debrowning, drying and crushing, mixed with EDTA-2Na, added deionized water and the temperature stirring reaction for 1 to 3 hours under the conditions of 25 to 35 degrees C, the prewashed canose , being held; The invention, pre-washed by EDTA-2Na, eliminates the catalytic cracking effect of metal ions on hydrogen peroxide, minimizes the unnecessary consumption of hydrogen peroxide, and the presence of magnesium/zinc ions and iron ion plasma in the system inhibits the cellulase in a certain concentration range, so that hydrogen peroxide fully acts on lignotin, which can greatly improve the conversion rate of lignocosis.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE20205835A BE1028503B1 (en) | 2020-11-19 | 2020-11-19 | Method of pretreatment of lignocellulose |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE20205835A BE1028503B1 (en) | 2020-11-19 | 2020-11-19 | Method of pretreatment of lignocellulose |
Publications (1)
Publication Number | Publication Date |
---|---|
BE1028503B1 true BE1028503B1 (en) | 2022-02-11 |
Family
ID=73654574
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE20205835A BE1028503B1 (en) | 2020-11-19 | 2020-11-19 | Method of pretreatment of lignocellulose |
Country Status (1)
Country | Link |
---|---|
BE (1) | BE1028503B1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104404108A (en) * | 2014-12-09 | 2015-03-11 | 齐鲁工业大学 | Pre-treating method for improving sugar conversion rate of lignocellulose |
US9150842B2 (en) * | 2011-03-09 | 2015-10-06 | Novozymes A/S | Methods of increasing the cellulolytic enhancing activity of a polypeptide |
CN105087720A (en) * | 2015-09-23 | 2015-11-25 | 齐鲁工业大学 | Treatment method for increasing lignocellulose enzymolysis conversion ratio through EDTA prewashing |
-
2020
- 2020-11-19 BE BE20205835A patent/BE1028503B1/en not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9150842B2 (en) * | 2011-03-09 | 2015-10-06 | Novozymes A/S | Methods of increasing the cellulolytic enhancing activity of a polypeptide |
CN104404108A (en) * | 2014-12-09 | 2015-03-11 | 齐鲁工业大学 | Pre-treating method for improving sugar conversion rate of lignocellulose |
CN105087720A (en) * | 2015-09-23 | 2015-11-25 | 齐鲁工业大学 | Treatment method for increasing lignocellulose enzymolysis conversion ratio through EDTA prewashing |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG | Patent granted |
Effective date: 20220211 |
|
MM | Lapsed because of non-payment of the annual fee |
Effective date: 20221130 |