EP0464221A1 - Procede pour produire de la pate a papier - Google Patents

Procede pour produire de la pate a papier Download PDF

Info

Publication number
EP0464221A1
EP0464221A1 EP19910902749 EP91902749A EP0464221A1 EP 0464221 A1 EP0464221 A1 EP 0464221A1 EP 19910902749 EP19910902749 EP 19910902749 EP 91902749 A EP91902749 A EP 91902749A EP 0464221 A1 EP0464221 A1 EP 0464221A1
Authority
EP
European Patent Office
Prior art keywords
pulp
microorganism
lignin
producing
culture medium
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.)
Granted
Application number
EP19910902749
Other languages
German (de)
English (en)
Other versions
EP0464221B1 (fr
EP0464221A4 (en
Inventor
Tomoaki Nishida
Yoshinori Kashino
Yoshimasa Takahara
Kokki Sakai
Ryuichiro Kondo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kobe Steel Ltd
Original Assignee
Kobe Steel Ltd
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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Publication of EP0464221A1 publication Critical patent/EP0464221A1/fr
Publication of EP0464221A4 publication Critical patent/EP0464221A4/en
Application granted granted Critical
Publication of EP0464221B1 publication Critical patent/EP0464221B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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

  • This invention relates to methods for producing pulp, comprising microbial treatment, in either or both of pulping process and bleaching process, using a microorganism which grows well in a culture medium containing lignin as a single carbon source.
  • the present invention relates to methods for producing pulp, comprising microbial treatment substantially without adding nutrients or inhibitors of cellulose degradation at any one stage of the process of producing pulp.
  • the present invention enables to produce pulp in good quality, by microbial treatment using a microorganism which grows well in a culture medium containing lignin as a single carbon source at a process for producing pulp, thereby suppressing cellulose degradation to the minimum.
  • the present invention enables pulping or bleaching, substantially without adding nutrients or inhibitors of cellulose degradation, for example glucose, at a process of producing pulp, by using a microorganism with excellent lignin-degrading activity and a high selectivity, whereby the present invention can provide economical and industrial methods for producing pulp in remarkably energy-saving manner.
  • the Japanese Patent Laid-open No. 46903/1975 proposes a method for producing cellulose pulp, comprising degradation of lignin under the condition to substantially degrade lignin, by using a microorganism having a production potential of a lignin-degrading enzyme.
  • the method has never been put to industrial use, because the degree of lignin degradation is so low due to the extremely low lignin-degrading activity of the microorganism used, and because the addition of sugars and nitrogen compounds is required added due to the suppression of cellulose assimilation by the microorganism.
  • the present inventors have investigated intensively in order to develop a method for pulping or bleaching with microbial treatment, without causing cellulose degradation and adding a nutrient and inhibitor of cellulose degradation. Consequently, they have achieved the object in accordance with the present invention.
  • a microorganism which grows well in a culture medium containing lignin as a single carbon source that realizes pulping and bleaching of wood chips, pulp after refining and unbleached pulp, substantially without adding nutrients or inhibitors of cellulose degradation, in the economical and tremendously energy-saving manner.
  • Fig. 1 shows the increase in brightness (%) after the microbial treatment for 1 to 5 days in Example 5.
  • the microorganism to be used in the present invention is from a microbial strain, well grown by inoculation and culture in a culture medium containing lignin as a single carbon source.
  • the culture medium there may be prepared an agar medium to which is added as a single carbon source, about 1 to 10% of lignin, preferably 2 to 4% of lignin.
  • An isolating source collected from a natural source is dispersed at an appropriate concentration in the culture medium, and cultured at 25 to 35 °C, to collect a colony exhibiting a good growth, which is to be an effective microorganism to be used in the present invention.
  • the present inventors have previously isolated the strains NK-1148 (FERM BP-1859) and NK-729W (FERM BP-1860), which are among the microorganisms very effective for the present invention.
  • NK-1148 strain (FERM BP-1859) The mycological characteristics of NK-1148 strain (FERM BP-1859) are shown as follows.
  • the microorganism to be used in the present invention may be NK-1148 strain or NK-729W strain isolated by the present inventors, but preferably there may be used a selectively isolated strain growing well using lignin as a single carbon source, obtained with or without mutation of these two strains, or a strain growing well using lignin as a single carbon source and having been isolated from nature.
  • the microorganism growing well using lignin as a single carbon source represents, for example, a microorganism capable of bleaching an unbleached kraft pulp up to a brightness of 45 % or more, preferably 50 % or more, more preferably 60 % or more, with no reduction in the strength of the pulp.
  • the microorganism to be used in the present invention can be cultured in any one of a culture medium containing lignin as a single carbon source, a general culture medium for basidiomycetes and fungi without containing lignin, and a culture medium containing wood powder, wood chips and pulp.
  • the type of pulp is generally classified in the following three.
  • the present invention is to produce individual pulp corresponding mechanical pulp (the degree of lignin degradation below 35 %), semichemical pulp (the degree of lignin degradation of not less than 35% to less than 75 %), and chemical pulp (the degree of lignin degradation of not less than 75%), by replacing a part or the entire part of the chemical treatment or mechanical treatment in the processes of producing pulp i.e., 1 to 3, with the microbial treatment of the present invention.
  • the microorganism growing well in the culture medium containing lignin as a single carbon source there may be used the microorganism growing well in the culture medium containing lignin as a single carbon source.
  • the microorganism can selectively degrade the lignin component in wood and uses the wood lignin as a nutrient. It is therefore possible to carry out the aforementioned microbial treatment without adding an inhibitor of cellulose degradation.
  • the degree of the chemical treatment to a light degree and the refining treatment to a light degree in the processes A to F is appropriately determined by a predetermined lignin content, depending on the type of the unbleached pulp including mechanical pulp, semichemical pulp and chemical pulp, or in any type of the pulp.
  • the microorganism to be used in the present invention has a far greater lignin-degrading activity than the lignin-degrading microorganisms conventionally known.
  • the present invention enables the substitution of all stages of the chemical treatment and the refining in the conventional processes of producing mechanical pulp, semichemical pulp and chemical pulp, with the microbial treatment, along with the marked decrease in the degree of the chemical treatment and the refining.
  • the process of producing pulp in accordance with the present invention can decrease the amount of chemicals, and is appropriate for production of high-quality pulp in energy-saving manner.
  • Intensely colored lignin generally remains in unbleached chemical pulp and unbleached semichemical pulp. In case of using these unbleached pulp for papers for the use requiring a higher brightness, therefore, the pulp is transferred to the bleaching process to remove the remaining lignin, to increase the brightness.
  • unbleached pulp is treated with the microorganism growing well in a culture medium containing lignin as a single carbon source, to degrade and remove the remaining lignin in the unbleached pulp, for the bleaching of the unbleached pulp.
  • the unbleached pulp may be any one of the unbleached chemical pulp and unbleached semichemical pulp by conventional methods, and the unbleached pulp corresponding to chemical pulp and those corresponding to semichemical pulp, produced with the microbial treatment of the present invention.
  • the bleaching of the present invention may be applied to the unbleached mechanical pulp by the conventional methods, and the unbleached pulp corresponding to mechanical pulp produced through the microbial treatment of the present invention.
  • the present bleaching is effectively applied to the unbleached pulp corresponding to unbleached chemical and semichemical pulp, from the standpoint of pollution control.
  • the bleaching process may be carried out entirely as the bleaching with the use of the microorganism, but a combination of the present bleaching with other bleaching methods may be also possible.
  • the bleaching of the present invention can achieve a high standard of safety due to its microbial treatment.
  • Pulping and/or bleaching can be carried out through by adding the cultured microorganism to about 1/10000 to 10/100 of wood chips or pulp, and culturing the mixture at about 20 to 35 °C for 3 to 90 days, without adding any nutrient or inhibitor of cellulose degradation to wood chips or various pulp. Optional addition of a small amount of inhibitors of cellulose degradation may be done.
  • the resulting mycelia are suspended in water.
  • the culture medium containing 2.0 % of milled wood lignin from white birch, 0.2 % of NH4H2PO4 and 1.6 % of agar is heated and sterilized at 120 °C for 15 minutes, which is then aseptically divided by 20 ml each into petri dishes (90 ml in diameter).
  • the mycelia in suspension were added to the culture medium and cultured at 28 °C for two weeks, to isolate a strain exhibiting good growth, which was defined an isolated strain A.
  • the isolated strain A was designated as NK-1148-3 strain and has been deposited in Fermentation Research Institure, Agency of Industrial Science and Technology, under the accession number of FERM BP-3220.
  • the isolated strain NK-1148-3 obtained in Example 1 was inoculated into the culture medium containing 1.2 % of potato-dextrose broth commercially available (DIFCO Co., Ltd.) after sterilization at 120 °C for 15 minutes, and cultured at 28 °C for a week, which was used as a seed culture.
  • DIFCO Co., Ltd. potato-dextrose broth commercially available
  • NK-1148 strain and the isolated strain NK-1148-3, obtained in Example 1 were separately inoculated into each culture medium mixed with 10 kg of an unbleached pulp (eucalyptus) and 25 l of water, which medium had been treated and sterilized in advance at 120 °C for 15 minutes, and cultured under aeration at 28 °C for two weeks. The resulting cultures were individually used as a seed culture.
  • a unbleached kraft pulp (eucalyptus) was mixed with 25 l of water and sterilized at 120 °C for 15 minutes, to which were separately added 1 kg of each of the seed cultures obtained in Example 4, together with 0.5 kg of glucose, and mixed for culture under, and cultured under aeration at 28 °C for 1 to 5 days, leading to the production of a bleached kraft pulp.
  • the enhancement of the brightness during the microbial treatment period for 1 to 5 days is shown in Fig. 1.

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.
EP91902749A 1990-01-19 1991-01-18 Procede pour produire de la pate a papier Expired - Lifetime EP0464221B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP8379/90 1990-01-19
JP837990A JPH03220388A (ja) 1990-01-19 1990-01-19 パルプの製造法
JP837890A JPH03213591A (ja) 1990-01-19 1990-01-19 微生物によるパルプの製造法
JP8378/90 1990-01-19
PCT/JP1991/000048 WO1991010773A1 (fr) 1990-01-19 1991-01-18 Procede pour produire de la pate a papier

Publications (3)

Publication Number Publication Date
EP0464221A1 true EP0464221A1 (fr) 1992-01-08
EP0464221A4 EP0464221A4 (en) 1993-02-03
EP0464221B1 EP0464221B1 (fr) 1995-07-26

Family

ID=26342891

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91902749A Expired - Lifetime EP0464221B1 (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) FI914357A7 (fr)
WO (1) WO1991010773A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2756571A1 (fr) * 1996-12-02 1998-06-05 Creca Procede microbiologique de traitement de surface d'un materiau, films et supports obtenus au moyen dudit materiau

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE411463B (sv) * 1973-04-16 1979-12-27 Svenska Traeforskningsinst Forfarande for framstellning av cellulosamassa medelst mikroorganismer
GB1560021A (en) * 1976-10-20 1980-01-30 Gen Electric Biological degradation of lignocellulose
GB1560022A (en) * 1976-10-20 1980-01-30 Gen Electric Biological pre-treatment of lignocellulose to remove lignin
JPS58180692A (ja) * 1982-04-10 1983-10-22 高橋　勝昭 パルプ材の脱リグニン方法
SE460363B (sv) * 1984-09-19 1989-10-02 Svenska Traeforskningsinst Foerfarande foer frambringande av cellulasloesa stammar av vitroetesvampar
FR2574427B1 (fr) * 1984-12-12 1987-08-07 Agronomique Inst Nat Rech Micro-organismes de souche phanerochaete chrysosporium et leur utilisation
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
US4690895A (en) * 1985-07-15 1987-09-01 Repligen Corporation Use of rLDM™ 1-6 and other ligninolytic enzymes in the bleaching of kraft pulp
JP2568522B2 (ja) * 1986-10-07 1997-01-08 新王子製紙株式会社 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
CA1321158C (fr) * 1987-06-09 1993-08-10 Tomoaki Nishida Bacterie decomposant la lignine, a grandes activite et selectivite
ZA894239B (en) * 1988-06-08 1990-03-28 Int Paper Co Enzymatic delignification of lignocellulosic material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2756571A1 (fr) * 1996-12-02 1998-06-05 Creca Procede microbiologique de traitement de surface d'un materiau, films et supports obtenus au moyen dudit materiau

Also Published As

Publication number Publication date
EP0464221B1 (fr) 1995-07-26
WO1991010773A1 (fr) 1991-07-25
FI914357A0 (fi) 1991-09-17
EP0464221A4 (en) 1993-02-03
CA2049069A1 (fr) 1991-07-20
FI914357A7 (fi) 1991-09-17

Similar Documents

Publication Publication Date Title
Kantelinen et al. Production of lignin peroxidase and laccase by Phlebia radiata
US3962033A (en) Method for producing cellulose pulp
Johnsrud et al. Cross-breeding of selected and mutated homokaryotic strains of Phanerochaete chrysosporium K-3: new cellulase deficient strains with increased ability to degrade lignin
US5750005A (en) Method of enhancing biopulping efficacy
Palma et al. Influence of aeration and agitation rate on the xylanase activity from Penicillium janthinellum
CA1266014A (fr) Blanchiment biologique direct de la pate kraft a l'aide d'un champignon coriolus versicolor
Martin et al. A study of the decolourization of straw soda-pulping effluents by rametes versicolor
Linko et al. Continuous production of lignin peroxidase by Phanerochaete chrysosporium
US5460697A (en) Method of pulping wood chips with a fungi using sulfite salt-treated wood chips
Jaspers et al. Evidence for a role of manganese peroxidase in the decolorization of Kraft pulp bleach plant effluent by Phanerochaete chrysosporium: effects of initial culture conditions on enzyme production
Perestelo et al. Bioalteration of kraft pine lignin by Bacillus megaterium isolated from compost piles
Perez et al. Role of organic acid chelators in manganese regulation of lignin degradation by Phanerochaete chrysosporium
EP0464221A1 (fr) Procede pour produire de la pate a papier
EP0799304A1 (fr) Bacterie d'origine bacterienne a activite xylanase
AU644623B2 (en) Process for producing pulp
CN1764717A (zh) 木质素降解细菌的分离和适应性培养的方法
Dahot Cultivation of Penicillium expansum on rice husk powder for protease production
JPH03220388A (ja) パルプの製造法
NZ239830A (en) Method for pulping and/or bleaching paper using a microorganism which grows well in a culture medium containing lignin as a single carbon source
JPH03213591A (ja) 微生物によるパルプの製造法
Pukahuta et al. Combination of laccase, xylanase and cellulase in lignocellulose degradation by white rot fungi, Lentinus polychrous Lev. and L. squarrosulus Mont.
JP3425453B2 (ja) パルプ漂白微生物及びそれを用いたパルプの漂白方法
Elisashvili et al. Dependence of activities of polysaccharide hydrolases and oxidases from Cerrena unicolor on the source of carbon and aromatic acids in culture medium
CA2041859A1 (fr) Methode de production d'une solution enzymatique riche en xylanase et pauvre en cellulase
EP0295063B1 (fr) Micro-organismes de dégradation de la lignine à grandes activité et selectivité

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19911016

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): FR GB SE

RIN1 Information on inventor provided before grant (corrected)

Inventor name: KONDO, RYUICHIRO

Inventor name: SAKAI, KOKKI

Inventor name: TAKAHARA, YOSHIMASA

Inventor name: KASHINO, YOSHINORI

Inventor name: NISHIDA, TOMOAKI

A4 Supplementary search report drawn up and despatched
AK Designated contracting states

Kind code of ref document: A4

Designated state(s): FR GB SE

17Q First examination report despatched

Effective date: 19931029

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): FR GB SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19950726

EN Fr: translation not filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19960118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19960119

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19960118

EUG Se: european patent has lapsed

Ref document number: 91902749.0