BE1028503B1 - Method of pretreatment of lignocellulose - Google Patents

Method of pretreatment of lignocellulose

Info

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
Application number
BE20205835A
Other languages
German (de)
Inventor
Tongjun Liu
Original Assignee
Qilu Univ Of Technology Shandong Academy Of Sciences
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 Qilu Univ Of Technology Shandong Academy Of Sciences filed Critical Qilu Univ Of Technology Shandong Academy Of Sciences
Priority to BE20205835A priority Critical patent/BE1028503B1/en
Application granted granted Critical
Publication of BE1028503B1 publication Critical patent/BE1028503B1/en

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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.

BE20205835A 2020-11-19 2020-11-19 Method of pretreatment of lignocellulose BE1028503B1 (en)

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)

* Cited by examiner, † Cited by third party
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
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