WO1991010773A1 - Procede pour produire de la pate a papier - Google Patents

Procede pour produire de la pate a papier Download PDF

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Publication number
WO1991010773A1
WO1991010773A1 PCT/JP1991/000048 JP9100048W WO9110773A1 WO 1991010773 A1 WO1991010773 A1 WO 1991010773A1 JP 9100048 W JP9100048 W JP 9100048W WO 9110773 A1 WO9110773 A1 WO 9110773A1
Authority
WO
WIPO (PCT)
Prior art keywords
pulp
lignin
microorganisms
producing
unbleached
Prior art date
Application number
PCT/JP1991/000048
Other languages
English (en)
Japanese (ja)
Inventor
Tomoaki Nishida
Yoshinori Kashino
Yoshimasa Takahara
Kokki Sakai
Ryuichiro Kondo
Original Assignee
Kabushiki Kaisha Kobe Seiko Sho
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
Priority claimed from JP837990A external-priority patent/JPH03220388A/ja
Priority claimed from JP837890A external-priority patent/JPH03213591A/ja
Application filed by Kabushiki Kaisha Kobe Seiko Sho filed Critical Kabushiki Kaisha Kobe Seiko Sho
Priority to EP91902749A priority Critical patent/EP0464221B1/fr
Priority to AU70568/91A priority patent/AU644623B2/en
Publication of WO1991010773A1 publication Critical patent/WO1991010773A1/fr
Priority to FI914357A priority patent/FI914357A0/fi
Priority to NZ239830A priority patent/NZ239830A/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D21C5/005—Treatment of cellulose-containing material with microorganisms or enzymes

Definitions

  • the present invention provides microbial treatment in at least one of the pulping step and the bleaching step using a microorganism that grows well in a medium containing lignin as the sole carbon source. It relates to the pulp manufacturing method that is the feature.
  • the present invention also relates to a method for producing pulp obtained by treating a microorganism with a microorganism substantially without adding a nutrient or a cellulose decomposition inhibitor in any of the steps of the pulp production process. It is.
  • the decomposition of cellulose is minimized during the pulp production process by treating the olives with microorganisms that grow well on a medium that uses lignin as the sole carbon source. This makes it possible to produce loose pulp.
  • the use of a microorganism having excellent lignin-degrading activity and high selectivity substantially eliminates a nutrient source or cellulose such as glucose during the pulp production process. Pulping or bleaching could be performed without adding an inhibitor, and an extremely energy-saving and inexpensive industrial pulp production method could be provided.
  • Japanese Patent Application Laid-Open No. 50-46903 proposes a method for producing cellulose pulp by decomposing lignin using a microorganism capable of producing lignin-degrading enzymes under conditions that substantially degrade lignin. Is
  • the lignin decomposition activity of the microorganism used is extremely weak and the lignin decomposition rate is low, and saccharides and nitrogen are used to suppress the microorganism from degrading cellulose.
  • the compound has been added and has not been industrialized yet.
  • the present inventors have proposed a method of treating microorganisms without decomposing cellulose or pulp in pulp or bleaching by microbial treatment, and without adding a nutrient source or a cellulose degradation inhibitor. As a result of intensive research for the law, the present invention was able to achieve its object.
  • FIG. 1 is a diagram showing an increase in whiteness,,, in the processing for 1 to 5 days in Example 5.
  • the microorganism used in the present invention is a strain which has been inoculated and cultured on a medium containing lignin as the sole carbon source and has grown well.
  • an agar medium containing lignin as a sole carbon source in an amount of about 1 to 10%, preferably 2 to 4% is prepared.
  • a source isolated from nature is dispersed at an appropriate concentration, cultured at 25 to 35 ° C, and if a colony showing good growth is collected, this is used in the present invention. It is an effective microorganism to perform.
  • the present inventors have already isolated -1148 strain (FER BF-1859) and NK-729 strain (FERM BP-1860), which are extremely effective microorganisms in the present invention.
  • the bacteriological properties of the NK-1148 strain are as follows. (1) Growth state in culture medium Medium Species Growth state Malt exgar agar + + +
  • the bacteriological properties of the NK-729W strain are as follows. (1) Growth state in culture medium Medium Species Growth state Malt exgar agar + + +
  • the microorganism used in the present invention may be K-114 strain or NK-729W strain isolated by the present inventors. However, it is better to use selected isolates that can grow well without mutating or mutating them, using lignin as the sole carbon source, and also use lignin isolated from nature. Good isolates that grow well with guanine as the sole carbon source
  • the microorganisms that grow well with lignin as the sole carbon source include, for example, those having a whiteness of 45% or more without being used for bleaching unbleached graphite pulp and reducing the strength. Microbes that can bleach to more than 50%, more preferably more than 60%.
  • the microorganism used in the present invention may be a medium containing lignin as the sole carbon source, a basidiomycete free from lignin, a cultivation medium, or a wood flour, a wood chip, Cultivation can be performed using any medium containing pulp.
  • the present invention provides a method for producing pulp from (1) to (3), wherein part or all of chemical treatment or mechanical treatment is replaced by the treatment with the microorganism of the present invention, thereby obtaining pulp equivalent to mechanical pulp.
  • Degradation rate of less than 35%), equivalent to semi-chemical pulp (lignin decomposition rate of 35% or more and less than 75%), equivalent to chemical pulp (lignin decomposition rate of 75% or more) Pulp.
  • the present invention basically includes the following processes.
  • Wood chips are directly treated with the microorganism of the present invention to decompose lignin components in the wood chips to produce unbleached pulp.
  • Wood chips are treated with the microorganism of the present invention after mild chemical treatment. To decompose the lignin component in the pulp to produce unbleached pulp.
  • the pulp obtained by lightly refining the wood chip is lightly treated with chemicals, and then treated with the microorganism of the present invention to decompose the lignin component in the pulp. Produce bleached pulp.
  • Wood chips are lightly treated with chemicals, and then lightly re-refined.
  • the pulp obtained is treated with the microorganism of the present invention to decompose the lignin component in the pulp and leave it unexposed.
  • Unbleached pulp is produced by subjecting the unbleached pulp obtained by any of the above A to E to further mild chemical treatment and Z or mild refining treatment. I do.
  • microorganisms in the above processes A to F uses microorganisms that grow well in a medium using lignin as the sole carbon source. These microorganisms can selectively decompose lignin components in wood and use the lignin in wood as a nutrient source. Therefore, the above-mentioned microorganism treatment can be performed without adding a cellulose decomposition inhibitor.
  • the unbleached pulp to be manufactured is either mechanical pulp, semi-chemical pulp, or chemical pulp.
  • the lignin content is determined as appropriate depending on the lignin content, and also on the pulp in any case.
  • the microorganism used in the present invention is significantly more lignin-degrading than the known lignin-degrading bacteria. Therefore, in the present invention, the chemical treatment and the refining treatment in the conventional manufacturing process of mechanical pulp, semi-chemical pulp, and chemical pulp are replaced with microbial treatment. ⁇ ⁇ ⁇ The degree of refining processing can be greatly reduced. That is, the pulp production method of the present invention is suitable for producing high-quality pulp with reduced chemical consumption and energy saving.
  • unbleached chemical pulp and unbleached semi-chemical pulp have strongly colored lignin. Therefore, when these unbleached pulp are used for papers that require high whiteness, they are sent to a bleaching process that removes residual lignin and increases whiteness.
  • the present invention decomposes and removes the residual lignin in the unbleached pulp by treating the unbleached pulp with a microorganism that grows well in a medium using lignin as the sole carbon source. Then, bleaching of the unbleached pulp is performed.
  • the unbleached pulp is unbleached chemical pulp and unbleached semi-chemical pulp according to the conventional method, and unbleached pulp equivalent to the chemical pulp manufactured by the microbial treatment method of the present invention. Any unbleached pulp equivalent to chemical pulp may be used.
  • unbleached medicinal pulp produced by the conventional method and the microorganism produced by the microorganism treatment method of the present invention are used.
  • the bleaching of the present invention can also be applied to unbleached pulp equivalent to recycled pulp, but a large amount of chlorine bleach is used for bleaching of unbleached and semi-chemical pulp. Therefore, application to unbleached pulp equivalent to unbleached chemical and semi-chemical pulp is effective in terms of pollution control.
  • the whole bleaching step can be a bleaching using the above-mentioned microorganism, but it can also be performed in combination with other bleaching.
  • the bleaching of the present invention is highly safe because it is treated with microorganisms.
  • the culture of microorganisms is added to the tip or pulp without adding any nutrients or cellulolytic inhibitors to the tip or pulp.
  • It can be processed by adding about 1000-10Z100 and culturing at about 20-35 ° C for about 3 days to 90 days. At this time, it is possible to appropriately add a small amount of a cellulose decomposition inhibitor.
  • a 50 mfi triangular flask containing 1.0 g of beech wood flour (60-80 mesh) and 2.5 ⁇ of water was sterilized by heating at 120 ° C for 15 minutes, and then the NK-1148 strain (FERM BP-1859 ), Incubate at 28 ° C for 1 week, and suspend the obtained cells in water.
  • Isolate A is named NK-1148-3 strain and has been deposited with MIC as FERM BP-3220.
  • the isolate NK-1148-3 obtained in Example 1 was heat-sterilized at 120 ° C for 15 minutes in a medium containing 1.2% of commercially available potato dextros® broth (manufactured by DIFC0). , And inoculated, and cultured at 28 ° C for 1 week to obtain a seed culture.
  • Each of the NK-1148 strain and the NK-1148-3 isolate obtained in Example 1 was mixed with 10 kg of unbleached craft pulp (Ukkari) and 25 ⁇ water.
  • the mixed medium was sterilized with TC for 15 minutes, inoculated, aerated at 28 for 2 weeks to obtain a seed culture.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Microbiology (AREA)
  • Paper (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)

Abstract

Un procédé pour produire de la pâte à papier sans qu'il soit nécessaire pratiquement d'ajouter une substance nutritive ou un inhibiteur de dégradation de la cellulose consiste à traiter la matière première, dans l'étape de réduction en pâte, avec un microorganisme qui pousse bien dans un milieu contenant de la lignine comme seule source de carbone. L'addition d'une substance nutritive ou d'un inhibiteur de dégradation de la cellulose étant indispensable dans le traitement microbien classique, la présente invention, qui permet de se dispenser de l'adjonction de ces substances, permet d'obtenir une réduction des coûts notable ainsi qu'une économie d'énergie en raison du traitement microbien.
PCT/JP1991/000048 1990-01-19 1991-01-18 Procede pour produire de la pate a papier WO1991010773A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP91902749A EP0464221B1 (fr) 1990-01-19 1991-01-18 Procede pour produire de la pate a papier
AU70568/91A AU644623B2 (en) 1990-01-19 1991-01-18 Process for producing pulp
FI914357A FI914357A0 (fi) 1990-01-19 1991-09-17 Foerfarande foer framstaellning av massa.
NZ239830A NZ239830A (en) 1991-01-18 1991-09-17 Method for pulping and/or bleaching paper using a microorganism which grows well in a culture medium containing lignin as a single carbon source

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP837990A JPH03220388A (ja) 1990-01-19 1990-01-19 パルプの製造法
JP2/8379 1990-01-19
JP2/8378 1990-01-19
JP837890A JPH03213591A (ja) 1990-01-19 1990-01-19 微生物によるパルプの製造法

Publications (1)

Publication Number Publication Date
WO1991010773A1 true WO1991010773A1 (fr) 1991-07-25

Family

ID=26342891

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1991/000048 WO1991010773A1 (fr) 1990-01-19 1991-01-18 Procede pour produire de la pate a papier

Country Status (4)

Country Link
EP (1) EP0464221B1 (fr)
CA (1) CA2049069A1 (fr)
FI (1) FI914357A0 (fr)
WO (1) WO1991010773A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2756571B1 (fr) * 1996-12-02 1999-02-19 Creca Procede microbiologique de traitement de surface d'un materiau, films et supports obtenus au moyen dudit materiau

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5046903A (fr) * 1973-04-16 1975-04-26
JPS5379085A (en) * 1976-10-20 1978-07-13 Gen Electric Removing of lignin by biological pretreatment of lignocellulose
JPS5379086A (en) * 1976-10-20 1978-07-13 Gen Electric Biologicacally decomposing method of lignocellulose
JPS58180692A (ja) * 1982-04-10 1983-10-22 高橋　勝昭 パルプ材の脱リグニン方法
JPS61199782A (ja) * 1984-12-12 1986-09-04 アンスチチユ−・ナチオナ−ル・ド・ラ・ルシエルシユ・アグロノミ−ク フアネロカエテ・クリソスポリウム株およびその用途
JPS62500214A (ja) * 1984-09-19 1987-01-29 スヴエンスカ　トレフオルスクニングインスチテユ−テツト 白色腐敗病菌のセルラ−ゼ欠損株の取得方法
JPS63500604A (ja) * 1985-07-15 1988-03-03 レプリゲン・コ−ポレ−ション クラフトパルプの漂白方法
JPS63500632A (ja) * 1985-07-15 1988-03-10 レプリゲン・コ−ポレ−ション 新規なリグニン分解酵素
JPS6391077A (ja) * 1986-10-07 1988-04-21 Oji Paper Co Ltd 微生物のリグノセルロ−ス物質への接種方法
JPS63249789A (ja) * 1987-04-03 1988-10-17 工業技術院長 木材チツプの生化学的パルフ化処理装置
EP0345715A1 (fr) * 1988-06-08 1989-12-13 International Paper Company Délignification enzymatique de matériau lignocellulosique

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1321158C (fr) * 1987-06-09 1993-08-10 Tomoaki Nishida Bacterie decomposant la lignine, a grandes activite et selectivite

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5046903A (fr) * 1973-04-16 1975-04-26
JPS5379085A (en) * 1976-10-20 1978-07-13 Gen Electric Removing of lignin by biological pretreatment of lignocellulose
JPS5379086A (en) * 1976-10-20 1978-07-13 Gen Electric Biologicacally decomposing method of lignocellulose
JPS58180692A (ja) * 1982-04-10 1983-10-22 高橋　勝昭 パルプ材の脱リグニン方法
JPS62500214A (ja) * 1984-09-19 1987-01-29 スヴエンスカ　トレフオルスクニングインスチテユ−テツト 白色腐敗病菌のセルラ−ゼ欠損株の取得方法
JPS61199782A (ja) * 1984-12-12 1986-09-04 アンスチチユ−・ナチオナ−ル・ド・ラ・ルシエルシユ・アグロノミ−ク フアネロカエテ・クリソスポリウム株およびその用途
JPS63500604A (ja) * 1985-07-15 1988-03-03 レプリゲン・コ−ポレ−ション クラフトパルプの漂白方法
JPS63500632A (ja) * 1985-07-15 1988-03-10 レプリゲン・コ−ポレ−ション 新規なリグニン分解酵素
JPS6391077A (ja) * 1986-10-07 1988-04-21 Oji Paper Co Ltd 微生物のリグノセルロ−ス物質への接種方法
JPS63249789A (ja) * 1987-04-03 1988-10-17 工業技術院長 木材チツプの生化学的パルフ化処理装置
EP0345715A1 (fr) * 1988-06-08 1989-12-13 International Paper Company Délignification enzymatique de matériau lignocellulosique

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0464221A4 *

Also Published As

Publication number Publication date
EP0464221A4 (en) 1993-02-03
CA2049069A1 (fr) 1991-07-20
EP0464221A1 (fr) 1992-01-08
EP0464221B1 (fr) 1995-07-26
FI914357A0 (fi) 1991-09-17

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