SE511229C2 - Förfarande för användning av enzymer vid framställning och blekning av pappersmassa - Google Patents

Förfarande för användning av enzymer vid framställning och blekning av pappersmassa

Info

Publication number: SE511229C2
Authority: SE; Sweden
Prior art keywords: pulp; enzyme; mass; xylanase; process according
Prior art date: 1991-05-07

Application number

SE9201441A

Other languages

English (en)

Swedish (sv)

Other versions

SE9201441D0 (sv

SE9201441L (sv

Inventor

Jeffrey Tolan

Brian Foody

Original Assignee

Iogen Corp

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.)

1991-05-07

Filing date

1992-05-07

Publication date

1999-08-30

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24798242&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=SE511229(C2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1992-05-07 Application filed by Iogen Corp filed Critical Iogen Corp

1992-05-07 Publication of SE9201441D0 publication Critical patent/SE9201441D0/xx

1992-11-08 Publication of SE9201441L publication Critical patent/SE9201441L/xx

1999-08-30 Publication of SE511229C2 publication Critical patent/SE511229C2/sv

Links

238000000034 method Methods 0.000 title claims abstract description 56
108090000790 Enzymes Proteins 0.000 title claims description 125
102000004190 Enzymes Human genes 0.000 title claims description 125
230000008569 process Effects 0.000 title claims description 36
238000004061 bleaching Methods 0.000 title description 46
238000004519 manufacturing process Methods 0.000 title description 9
108010059892 Cellulase Proteins 0.000 claims abstract description 27
229940106157 cellulase Drugs 0.000 claims abstract description 25
108010002430 hemicellulase Proteins 0.000 claims abstract description 19
238000002360 preparation method Methods 0.000 claims abstract description 19
229940088598 enzyme Drugs 0.000 claims description 124
230000000694 effects Effects 0.000 claims description 51
101710121765 Endo-1,4-beta-xylanase Proteins 0.000 claims description 43
239000002253 acid Substances 0.000 claims description 27
239000000725 suspension Substances 0.000 claims description 23
239000002023 wood Substances 0.000 claims description 16
239000007788 liquid Substances 0.000 claims description 11
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
239000000203 mixture Substances 0.000 claims description 5
229910052760 oxygen Inorganic materials 0.000 claims description 5
239000001301 oxygen Substances 0.000 claims description 5
108010055059 beta-Mannosidase Proteins 0.000 claims description 4
238000009835 boiling Methods 0.000 claims description 4
238000010411 cooking Methods 0.000 claims description 4
102100032487 Beta-mannosidase Human genes 0.000 claims description 3
108010001817 Endo-1,4-beta Xylanases Proteins 0.000 claims description 2
108010038658 exo-1,4-beta-D-xylosidase Proteins 0.000 claims description 2
229920001131 Pulp (paper) Polymers 0.000 abstract 2
238000011282 treatment Methods 0.000 description 36
HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 35
QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 24
229920005610 lignin Polymers 0.000 description 23
OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 22
QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 20
150000004823 xylans Chemical class 0.000 description 19
239000000460 chlorine Substances 0.000 description 18
229910052801 chlorine Inorganic materials 0.000 description 18
229910021653 sulphate ion Inorganic materials 0.000 description 18
229920001221 xylan Polymers 0.000 description 18
ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 17
239000000758 substrate Substances 0.000 description 16
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
239000004155 Chlorine dioxide Substances 0.000 description 11
235000019398 chlorine dioxide Nutrition 0.000 description 11
239000000126 substance Substances 0.000 description 9
239000007853 buffer solution Substances 0.000 description 8
239000000523 sample Substances 0.000 description 8
239000000243 solution Substances 0.000 description 8
238000006243 chemical reaction Methods 0.000 description 7
239000000835 fiber Substances 0.000 description 7
230000007062 hydrolysis Effects 0.000 description 7
238000006460 hydrolysis reaction Methods 0.000 description 7
230000001965 increasing effect Effects 0.000 description 7
102000004169 proteins and genes Human genes 0.000 description 7
108090000623 proteins and genes Proteins 0.000 description 7
238000003860 storage Methods 0.000 description 7
238000005406 washing Methods 0.000 description 7
SRBFZHDQGSBBOR-IOVATXLUSA-N D-xylopyranose Chemical compound O[C@@H]1COC(O)[C@H](O)[C@H]1O SRBFZHDQGSBBOR-IOVATXLUSA-N 0.000 description 6
229920002488 Hemicellulose Polymers 0.000 description 6
230000009931 harmful effect Effects 0.000 description 6
239000000047 product Substances 0.000 description 6
241000499912 Trichoderma reesei Species 0.000 description 5
239000008367 deionised water Substances 0.000 description 5
229910021641 deionized water Inorganic materials 0.000 description 5
238000005259 measurement Methods 0.000 description 5
HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 4
230000008901 benefit Effects 0.000 description 4
239000007844 bleaching agent Substances 0.000 description 4
229940079919 digestives enzyme preparation Drugs 0.000 description 4
238000006911 enzymatic reaction Methods 0.000 description 4
150000004045 organic chlorine compounds Chemical class 0.000 description 4
239000002351 wastewater Substances 0.000 description 4
241000196324 Embryophyta Species 0.000 description 3
150000007513 acids Chemical class 0.000 description 3
230000009471 action Effects 0.000 description 3
238000004458 analytical method Methods 0.000 description 3
PYMYPHUHKUWMLA-UHFFFAOYSA-N arabinose Natural products OCC(O)C(O)C(O)C=O PYMYPHUHKUWMLA-UHFFFAOYSA-N 0.000 description 3
230000009286 beneficial effect Effects 0.000 description 3
SRBFZHDQGSBBOR-UHFFFAOYSA-N beta-D-Pyranose-Lyxose Natural products OC1COC(O)C(O)C1O SRBFZHDQGSBBOR-UHFFFAOYSA-N 0.000 description 3
239000001913 cellulose Substances 0.000 description 3
229920002678 cellulose Polymers 0.000 description 3
238000005660 chlorination reaction Methods 0.000 description 3
230000007423 decrease Effects 0.000 description 3
230000006870 function Effects 0.000 description 3
239000000499 gel Substances 0.000 description 3
239000011121 hardwood Substances 0.000 description 3
238000001155 isoelectric focusing Methods 0.000 description 3
239000000463 material Substances 0.000 description 3
230000001603 reducing effect Effects 0.000 description 3
239000011122 softwood Substances 0.000 description 3
238000012360 testing method Methods 0.000 description 3
LUEWUZLMQUOBSB-FSKGGBMCSA-N (2s,3s,4s,5s,6r)-2-[(2r,3s,4r,5r,6s)-6-[(2r,3s,4r,5s,6s)-4,5-dihydroxy-2-(hydroxymethyl)-6-[(2r,4r,5s,6r)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-4,5-dihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol Chemical compound O[C@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1O[C@@H]1[C@@H](CO)O[C@@H](O[C@@H]2[C@H](O[C@@H](OC3[C@H](O[C@@H](O)[C@@H](O)[C@H]3O)CO)[C@@H](O)[C@H]2O)CO)[C@H](O)[C@H]1O LUEWUZLMQUOBSB-FSKGGBMCSA-N 0.000 description 2
241000228212 Aspergillus Species 0.000 description 2
241001513093 Aspergillus awamori Species 0.000 description 2
RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
229920002581 Glucomannan Polymers 0.000 description 2
VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
241000218652 Larix Species 0.000 description 2
235000005590 Larix decidua Nutrition 0.000 description 2
NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
241000277331 Salmonidae Species 0.000 description 2
NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
230000002378 acidificating effect Effects 0.000 description 2
125000000089 arabinosyl group Chemical group C1([C@@H](O)[C@H](O)[C@H](O)CO1)* 0.000 description 2
125000003118 aryl group Chemical group 0.000 description 2
238000003556 assay Methods 0.000 description 2
TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
239000000872 buffer Substances 0.000 description 2
239000003054 catalyst Substances 0.000 description 2
230000003197 catalytic effect Effects 0.000 description 2
239000007795 chemical reaction product Substances 0.000 description 2
239000007979 citrate buffer Substances 0.000 description 2
230000000593 degrading effect Effects 0.000 description 2
238000005516 engineering process Methods 0.000 description 2
230000002255 enzymatic effect Effects 0.000 description 2
238000000605 extraction Methods 0.000 description 2
239000012065 filter cake Substances 0.000 description 2
238000009472 formulation Methods 0.000 description 2
229940046240 glucomannan Drugs 0.000 description 2
150000004820 halides Chemical class 0.000 description 2
230000003301 hydrolyzing effect Effects 0.000 description 2
WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
230000002779 inactivation Effects 0.000 description 2
150000002500 ions Chemical class 0.000 description 2
238000009533 lab test Methods 0.000 description 2
244000005700 microbiome Species 0.000 description 2
238000002156 mixing Methods 0.000 description 2
238000012986 modification Methods 0.000 description 2
230000004048 modification Effects 0.000 description 2
238000001139 pH measurement Methods 0.000 description 2
230000009467 reduction Effects 0.000 description 2
238000006467 substitution reaction Methods 0.000 description 2
229910052717 sulfur Inorganic materials 0.000 description 2
239000011593 sulfur Substances 0.000 description 2
231100000167 toxic agent Toxicity 0.000 description 2
JNIQBPHJIAOMQU-FSIIMWSLSA-N (2s,3s,4s,5r)-2,3,4,5-tetrahydroxy-6-oxoheptanoic acid Chemical group CC(=O)[C@H](O)[C@@H](O)[C@H](O)[C@H](O)C(O)=O JNIQBPHJIAOMQU-FSIIMWSLSA-N 0.000 description 1
UHPMCKVQTMMPCG-UHFFFAOYSA-N 5,8-dihydroxy-2-methoxy-6-methyl-7-(2-oxopropyl)naphthalene-1,4-dione Chemical compound CC1=C(CC(C)=O)C(O)=C2C(=O)C(OC)=CC(=O)C2=C1O UHPMCKVQTMMPCG-UHFFFAOYSA-N 0.000 description 1
HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
244000075850 Avena orientalis Species 0.000 description 1
235000007319 Avena orientalis Nutrition 0.000 description 1
241000193830 Bacillus <bacterium> Species 0.000 description 1
235000018185 Betula X alpestris Nutrition 0.000 description 1
235000018212 Betula X uliginosa Nutrition 0.000 description 1
101100283604 Caenorhabditis elegans pigk-1 gene Proteins 0.000 description 1
229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
240000000731 Fagus sylvatica Species 0.000 description 1
235000010099 Fagus sylvatica Nutrition 0.000 description 1
241000223218 Fusarium Species 0.000 description 1
WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
NGWKGSCSHDHHAJ-YPFQVHCOSA-N Liquoric acid Chemical compound C1C[C@H](O)C(C)(C)C2CC[C@@]3(C)[C@]4(C)C[C@H]5O[C@@H]([C@](C6)(C)C(O)=O)C[C@@]5(C)[C@@H]6C4=CC(=O)C3[C@]21C NGWKGSCSHDHHAJ-YPFQVHCOSA-N 0.000 description 1
229920000057 Mannan Polymers 0.000 description 1
241001508691 Martes zibellina Species 0.000 description 1
241001085205 Prenanthella exigua Species 0.000 description 1
241000220317 Rosa Species 0.000 description 1
DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 1
239000005708 Sodium hypochlorite Substances 0.000 description 1
241000187134 Streptomyces olivochromogenes Species 0.000 description 1
241000223259 Trichoderma Species 0.000 description 1
FRYDSOYOHWGSMD-UHFFFAOYSA-N [C].O Chemical class [C].O FRYDSOYOHWGSMD-UHFFFAOYSA-N 0.000 description 1
125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 description 1
238000007259 addition reaction Methods 0.000 description 1
239000000654 additive Substances 0.000 description 1
230000000996 additive effect Effects 0.000 description 1
229910000147 aluminium phosphate Inorganic materials 0.000 description 1
239000012736 aqueous medium Substances 0.000 description 1
239000007864 aqueous solution Substances 0.000 description 1
239000007900 aqueous suspension Substances 0.000 description 1
235000020054 awamori Nutrition 0.000 description 1
239000011230 binding agent Substances 0.000 description 1
230000015572 biosynthetic process Effects 0.000 description 1
238000005282 brightening Methods 0.000 description 1
239000001768 carboxy methyl cellulose Substances 0.000 description 1
235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
239000008112 carboxymethyl-cellulose Substances 0.000 description 1
238000006555 catalytic reaction Methods 0.000 description 1
230000001413 cellular effect Effects 0.000 description 1
230000008859 change Effects 0.000 description 1
239000003795 chemical substances by application Substances 0.000 description 1
150000001804 chlorine Chemical class 0.000 description 1
229910001902 chlorine oxide Inorganic materials 0.000 description 1
MAYPHUUCLRDEAZ-UHFFFAOYSA-N chlorine peroxide Chemical compound ClOOCl MAYPHUUCLRDEAZ-UHFFFAOYSA-N 0.000 description 1
125000001309 chloro group Chemical group Cl* 0.000 description 1
239000003086 colorant Substances 0.000 description 1
150000001875 compounds Chemical class 0.000 description 1
230000001010 compromised effect Effects 0.000 description 1
239000012141 concentrate Substances 0.000 description 1
239000013068 control sample Substances 0.000 description 1
230000001934 delay Effects 0.000 description 1
230000001627 detrimental effect Effects 0.000 description 1
238000009792 diffusion process Methods 0.000 description 1
238000010790 dilution Methods 0.000 description 1
239000012895 dilution Substances 0.000 description 1
238000009826 distribution Methods 0.000 description 1
230000002708 enhancing effect Effects 0.000 description 1
239000003344 environmental pollutant Substances 0.000 description 1
230000009088 enzymatic function Effects 0.000 description 1
230000002349 favourable effect Effects 0.000 description 1
239000000706 filtrate Substances 0.000 description 1
239000012467 final product Substances 0.000 description 1
235000013305 food Nutrition 0.000 description 1
239000008103 glucose Substances 0.000 description 1
229940059442 hemicellulase Drugs 0.000 description 1
125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
230000006872 improvement Effects 0.000 description 1
238000003780 insertion Methods 0.000 description 1
230000037431 insertion Effects 0.000 description 1
230000003993 interaction Effects 0.000 description 1
125000003010 ionic group Chemical group 0.000 description 1
230000004807 localization Effects 0.000 description 1
239000002609 medium Substances 0.000 description 1
239000008267 milk Substances 0.000 description 1
235000013336 milk Nutrition 0.000 description 1
210000004080 milk Anatomy 0.000 description 1
239000006225 natural substrate Substances 0.000 description 1
230000018791 negative regulation of catalytic activity Effects 0.000 description 1
230000007935 neutral effect Effects 0.000 description 1
230000001590 oxidative effect Effects 0.000 description 1
238000010979 pH adjustment Methods 0.000 description 1
239000004033 plastic Substances 0.000 description 1
231100000719 pollutant Toxicity 0.000 description 1
229920001282 polysaccharide Polymers 0.000 description 1
239000005017 polysaccharide Substances 0.000 description 1
150000004804 polysaccharides Chemical class 0.000 description 1
238000003825 pressing Methods 0.000 description 1
238000004076 pulp bleaching Methods 0.000 description 1
238000011160 research Methods 0.000 description 1
239000011734 sodium Substances 0.000 description 1
235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
239000004289 sodium hydrogen sulphite Substances 0.000 description 1
SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
239000007787 solid Substances 0.000 description 1
230000002269 spontaneous effect Effects 0.000 description 1
239000007921 spray Substances 0.000 description 1
238000010561 standard procedure Methods 0.000 description 1
238000003756 stirring Methods 0.000 description 1
125000001424 substituent group Chemical group 0.000 description 1
150000003568 thioethers Chemical class 0.000 description 1
231100000419 toxicity Toxicity 0.000 description 1
230000001988 toxicity Effects 0.000 description 1
230000009466 transformation Effects 0.000 description 1
238000000844 transformation Methods 0.000 description 1
238000009827 uniform distribution Methods 0.000 description 1
238000010977 unit operation Methods 0.000 description 1

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
- 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
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp
- 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
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1026—Other features in bleaching processes
- D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes

Landscapes

Life Sciences & Earth Sciences (AREA)
Engineering & Computer Science (AREA)
Wood Science & Technology (AREA)
Chemical & Material Sciences (AREA)
Biochemistry (AREA)
Microbiology (AREA)
Paper (AREA)
Chemical Or Physical Treatment Of Fibers (AREA)

SE9201441A 1991-05-07 1992-05-07 Förfarande för användning av enzymer vid framställning och blekning av pappersmassa SE511229C2 (sv)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US69671491A	1991-05-07	1991-05-07

Publications (3)

Publication Number	Publication Date
SE9201441D0 SE9201441D0 (sv)	1992-05-07
SE9201441L SE9201441L (sv)	1992-11-08
SE511229C2 true SE511229C2 (sv)	1999-08-30

Family

ID=24798242

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SE9201441A SE511229C2 (sv)	1991-05-07	1992-05-07	Förfarande för användning av enzymer vid framställning och blekning av pappersmassa

Country Status (5)

Country	Link
US (1)	US5591304A (fi)
JP (1)	JP3261661B2 (fi)
CA (1)	CA2079000C (fi)
FI (1)	FI108800B (fi)
SE (1)	SE511229C2 (fi)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US6273994B1 (en)	1998-01-30	2001-08-14	Iogen Corporation	Method and device for measuring bleach requirement, bleachability, and effectivenss of hemicellulase enzyme treatment of pulp
US7368036B2 (en) *	2002-03-06	2008-05-06	Iogen Bio-Products Corporation	Xylanase treatment of chemical pulp
EP1516053B1 (en) *	2002-06-14	2012-10-17	Verenium Corporation	Xylanases, nucleic adics encoding them and methods for making and using them
AU2004254640B2 (en)	2003-07-02	2010-08-26	Bp Corporation North America Inc.	Glucanases, nucleic acids encoding them and methods for making and using them
US7741089B2 (en)	2003-08-11	2010-06-22	Verenium Corporation	Laccases, nucleic acids encoding them and methods for making and using them
US8945347B2 (en) *	2004-05-03	2015-02-03	Centre Technique De L'industrie Des Papiers, Cartons Et Celluloses	Method for mechanical pulp production
US8138106B2 (en)	2005-09-30	2012-03-20	Rayonier Trs Holdings Inc.	Cellulosic fibers with odor control characteristics
EP3406621A1 (en)	2006-02-14	2018-11-28	BP Corporation North America Inc.	Xylanases, nucleic acids encoding them and methods for making and using them
JP4958097B2 (ja)	2006-07-19	2012-06-20	国立大学法人京都大学	ナノファイバーシート及びその製造方法並びに繊維強化複合材料
AU2007356171B8 (en)	2006-08-04	2014-01-16	Bp Corporation North America Inc.	Glucanases, nucleic acids encoding them, and methods for making and using them
DK2205744T3 (en)	2007-10-03	2015-04-27	Bp Corp North America Inc	Xylanases, nucleic acids encoding them, and methods of making and an-facing presence thereof
CN104195859B (zh) *	2014-09-23	2016-06-29	广西大学	一种生物酶辅助二氧化氯漂白蔗渣浆的方法
CN114045695B (zh) *	2021-11-05	2023-02-07	苏州埃斯腾特生物科技有限公司	复配生物酶制剂及其制备方法和应用

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
SE406944B (sv) *	1976-04-14	1979-03-05	Mo Och Domsjoe Ab	Forfarande for att reglera tillsatsen av suspensinsvetska vid kontinuerlig tvettning av suspensioner
FR2604198B1 (fr) *	1986-09-22	1989-07-07	Du Pin Cellulose	Procede de traitement d'une pate papetiere par une solution enzymatique.
FI81395B (fi) *	1988-03-14	1990-06-29	Cultor Oy	Foerfarande foer blekning av cellulosamassa.
DE68914112T2 (de) *	1988-11-23	1994-08-04	Sandoz Ag	Benutzung von Enzymen von Aureobasidium Pullulans für das Bleichen von Zellstoff.
US5179021A (en) *	1989-02-10	1993-01-12	Gil Inc. (Now Ici Canada Inc.)	Pulp bleaching process comprising oxygen delignification and xylanase enzyme treatment
FI90888B (fi) *	1989-02-14	1993-12-31	Enso Gutzeit Oy	Menetelmä selluloosamassan valkaisemiseksi
FI86896B (fi) *	1989-05-04	1992-07-15	Enso Gutzeit Oy	Foerfarande foer blekning av cellulosamassa.
ZA904441B (en) *	1989-06-22	1991-03-27	Int Paper Co	Enzymatic delignification of lignocellulosic material
FI88316C (fi) *	1989-07-10	1993-04-26	Enso Gutzeit Oy	Foerfarande foer blekning av cellulosamassa
DE69025405T2 (de) *	1989-08-14	1996-09-05	Genencor Int Europ	Verbesserung beim bleichen von pulpe
DK420289D0 (da) *	1989-08-25	1989-08-25	Novo Nordisk As	Fremgangsmaade til behandling af lignocellulosepulp

1992
- 1992-05-06 FI FI922051A patent/FI108800B/fi active
- 1992-05-07 CA CA002079000A patent/CA2079000C/en not_active Expired - Lifetime
- 1992-05-07 SE SE9201441A patent/SE511229C2/sv unknown
- 1992-05-07 JP JP14105392A patent/JP3261661B2/ja not_active Expired - Fee Related
1994
- 1994-10-04 US US08/317,828 patent/US5591304A/en not_active Expired - Fee Related

Also Published As

Publication number	Publication date
FI922051A0 (fi)	1992-05-06
US5591304A (en)	1997-01-07
FI108800B (fi)	2002-03-28
CA2079000C (en)	1996-06-18
JP3261661B2 (ja)	2002-03-04
SE9201441D0 (sv)	1992-05-07
SE9201441L (sv)	1992-11-08
FI922051A (fi)	1992-11-08
JPH06166977A (ja)	1994-06-14

Publication	Publication Date	Title
EP0473545B1 (en)	1994-10-19	Thermostable endoxylanases
FI94265B (fi)	1995-04-28	Menetelmä lignoselluloosamateriaalin valkaisemiseksi happi- ja entsyymikäsittelyllä
EP0926234B1 (en)	2001-06-27	Thermostable xylanases
EP0489104B1 (en)	1993-12-15	Process for treatment of lignocellulosic pulp
EP0351655B1 (en)	1992-11-25	A method for the treatment of pulp
AU624279B2 (en)	1992-06-04	Method for bleaching with reduced organic chlorides
Zhao et al.	2002	Xylanase pretreatment leads to enhanced soda pulping of wheat straw
SE511229C2 (sv)	1999-08-30	Förfarande för användning av enzymer vid framställning och blekning av pappersmassa
CA2064045C (en)	2006-02-14	Oxygen bleaching of pulp
US7320741B2 (en)	2008-01-22	Method of xylanase treatment in a chlorine dioxide bleaching sequence
US5004523A (en)	1991-04-02	Delignification of lignocellulosic materials with monoperoxysulfuric acid
DE68914112T2 (de)	1994-08-04	Benutzung von Enzymen von Aureobasidium Pullulans für das Bleichen von Zellstoff.
CA2432788C (en)	2008-10-07	Alkaline extraction stages comprising xylanase
FI89613B (fi)	1993-07-15	Foerfarande foer enzymatisk behandling av cellulosamassor
CA2541229A1 (en)	2006-09-30	Modified method for mechanical pulp production
AU660966B2 (en)	1995-07-13	A method for reducing pitch trouble in mechanical pulp
BUCHERT et al.	1998	A. SUURNÄKKI and L. VIIKARI VTT Biotechnology and Food Research, Espoo, Finland
VIIKARI	1998	J. BUCHERT, T. OKSANEN, J. PERE, M. SIIKA-AHO, A. SUURNÄKKI and
Bissoon	2002	Evaluation of the Bleach-enhancing Effects of Xylanases on Bagasse-soda Pulp
CA2167946A1 (en)	1992-11-08	Method for the use of enzymes in processing and bleaching of paper pulp, and apparatus for the use thereof
NO173516B (no)	1993-09-13	Fremgangsmaate for bleking av celluloseholdig masse ved behandling med en kultur av aureobasidium pullulans, eller et enzymatisk system inneholdende minst en hemicellulose ava. pullulans
NO180019B (no)	1996-10-21	Fremgangsmåte hvor det anvendes cellulase for forbedring av avvanningsegenskaper for masse