DE69015294T2 - Bleichen von Holzstoff mit Enzymen. - Google Patents
Bleichen von Holzstoff mit Enzymen.Info
- Publication number
- DE69015294T2 DE69015294T2 DE1990615294 DE69015294T DE69015294T2 DE 69015294 T2 DE69015294 T2 DE 69015294T2 DE 1990615294 DE1990615294 DE 1990615294 DE 69015294 T DE69015294 T DE 69015294T DE 69015294 T2 DE69015294 T2 DE 69015294T2
- Authority
- DE
- Germany
- Prior art keywords
- pulp
- lignin
- enzyme
- composition according
- oxygen
- 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.)
- Expired - Fee Related
Links
- 238000004061 bleaching Methods 0.000 title claims description 14
- 102000004190 Enzymes Human genes 0.000 title description 36
- 108090000790 Enzymes Proteins 0.000 title description 36
- 229920001131 Pulp (paper) Polymers 0.000 title description 12
- 238000000034 method Methods 0.000 claims description 32
- 230000008569 process Effects 0.000 claims description 27
- 108010054320 Lignin peroxidase Proteins 0.000 claims description 23
- 238000011282 treatment Methods 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 17
- 230000002255 enzymatic effect Effects 0.000 claims description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 15
- 239000001301 oxygen Substances 0.000 claims description 15
- 229910052760 oxygen Inorganic materials 0.000 claims description 15
- 239000002351 wastewater Substances 0.000 claims description 10
- 241000222393 Phanerochaete chrysosporium Species 0.000 claims description 7
- 239000002023 wood Substances 0.000 claims description 5
- 238000004362 fungal culture Methods 0.000 claims description 4
- 150000002978 peroxides Chemical class 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- 239000000706 filtrate Substances 0.000 claims description 3
- 238000004537 pulping Methods 0.000 claims description 3
- 239000000287 crude extract Substances 0.000 claims description 2
- 239000006228 supernatant Substances 0.000 claims description 2
- 229920005610 lignin Polymers 0.000 description 25
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 18
- 238000002360 preparation method Methods 0.000 description 16
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 13
- 238000000605 extraction Methods 0.000 description 11
- 239000002655 kraft paper Substances 0.000 description 9
- 108700020962 Peroxidase Proteins 0.000 description 7
- 102000003992 Peroxidases Human genes 0.000 description 7
- 241000233866 Fungi Species 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000002202 Polyethylene glycol Substances 0.000 description 5
- 229920002684 Sepharose Polymers 0.000 description 5
- 229920001223 polyethylene glycol Polymers 0.000 description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 239000011122 softwood Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000008399 tap water Substances 0.000 description 4
- 235000020679 tap water Nutrition 0.000 description 4
- 229920002488 Hemicellulose Polymers 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 3
- 239000008351 acetate buffer Substances 0.000 description 3
- 229920002678 cellulose Polymers 0.000 description 3
- 239000001913 cellulose Substances 0.000 description 3
- 239000013505 freshwater Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- OEGPRYNGFWGMMV-UHFFFAOYSA-N (3,4-dimethoxyphenyl)methanol Chemical compound COC1=CC=C(CO)C=C1OC OEGPRYNGFWGMMV-UHFFFAOYSA-N 0.000 description 2
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 229920000936 Agarose Polymers 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 108010090665 Mannosyl-Glycoprotein Endo-beta-N-Acetylglucosaminidase Proteins 0.000 description 2
- 229910003177 MnII Inorganic materials 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000000872 buffer Substances 0.000 description 2
- 239000001110 calcium chloride Substances 0.000 description 2
- 235000011148 calcium chloride Nutrition 0.000 description 2
- 229910001628 calcium chloride Inorganic materials 0.000 description 2
- 150000001720 carbohydrates Chemical group 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 230000022811 deglycosylation Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 150000003278 haem Chemical class 0.000 description 2
- 239000011121 hardwood Substances 0.000 description 2
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 2
- 238000004128 high performance liquid chromatography Methods 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- 108010062085 ligninase Proteins 0.000 description 2
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 2
- 235000019341 magnesium sulphate Nutrition 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 229920001451 polypropylene glycol Polymers 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 238000010561 standard procedure Methods 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 235000013619 trace mineral Nutrition 0.000 description 2
- 239000011573 trace mineral Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 229910001868 water Inorganic materials 0.000 description 2
- HBOMLICNUCNMMY-KJFJCRTCSA-N 1-[(4s,5s)-4-azido-5-(hydroxymethyl)oxolan-2-yl]-5-methylpyrimidine-2,4-dione Chemical compound O=C1NC(=O)C(C)=CN1C1O[C@H](CO)[C@@H](N=[N+]=[N-])C1 HBOMLICNUCNMMY-KJFJCRTCSA-N 0.000 description 1
- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 description 1
- 241000283690 Bos taurus Species 0.000 description 1
- 108091003079 Bovine Serum Albumin Proteins 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 102000005575 Cellulases Human genes 0.000 description 1
- 108010084185 Cellulases Proteins 0.000 description 1
- 229920001661 Chitosan Polymers 0.000 description 1
- 239000004155 Chlorine dioxide Substances 0.000 description 1
- 229910021580 Cobalt(II) chloride Inorganic materials 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 102000003886 Glycoproteins Human genes 0.000 description 1
- 108090000288 Glycoproteins Proteins 0.000 description 1
- 108010031186 Glycoside Hydrolases Proteins 0.000 description 1
- 102000005744 Glycoside Hydrolases Human genes 0.000 description 1
- 108010044467 Isoenzymes Proteins 0.000 description 1
- 239000007836 KH2PO4 Substances 0.000 description 1
- 229910017234 MnSO4 H2O Inorganic materials 0.000 description 1
- 229910018890 NaMoO4 Inorganic materials 0.000 description 1
- 102000004316 Oxidoreductases Human genes 0.000 description 1
- 108090000854 Oxidoreductases Proteins 0.000 description 1
- 239000008118 PEG 6000 Substances 0.000 description 1
- 229920002584 Polyethylene Glycol 6000 Polymers 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 102100025342 Voltage-dependent N-type calcium channel subunit alpha-1B Human genes 0.000 description 1
- 101710088658 Voltage-dependent N-type calcium channel subunit alpha-1B Proteins 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- VJHCJDRQFCCTHL-UHFFFAOYSA-N acetic acid 2,3,4,5,6-pentahydroxyhexanal Chemical compound CC(O)=O.OCC(O)C(O)C(O)C(O)C=O VJHCJDRQFCCTHL-UHFFFAOYSA-N 0.000 description 1
- 229940072056 alginate Drugs 0.000 description 1
- 229920000615 alginic acid Polymers 0.000 description 1
- 235000010443 alginic acid Nutrition 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 229940061720 alpha hydroxy acid Drugs 0.000 description 1
- 150000001280 alpha hydroxy acids Chemical class 0.000 description 1
- NGPGDYLVALNKEG-UHFFFAOYSA-N azanium;azane;2,3,4-trihydroxy-4-oxobutanoate Chemical compound [NH4+].[NH4+].[O-]C(=O)C(O)C(O)C([O-])=O NGPGDYLVALNKEG-UHFFFAOYSA-N 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 229940098773 bovine serum albumin Drugs 0.000 description 1
- 238000005282 brightening Methods 0.000 description 1
- HJMZMZRCABDKKV-UHFFFAOYSA-N carbonocyanidic acid Chemical compound OC(=O)C#N HJMZMZRCABDKKV-UHFFFAOYSA-N 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 235000019398 chlorine dioxide Nutrition 0.000 description 1
- 239000011365 complex material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910000366 copper(II) sulfate Inorganic materials 0.000 description 1
- MGNCLNQXLYJVJD-UHFFFAOYSA-N cyanuric chloride Chemical compound ClC1=NC(Cl)=NC(Cl)=N1 MGNCLNQXLYJVJD-UHFFFAOYSA-N 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 150000002013 dioxins Chemical class 0.000 description 1
- VDQVEACBQKUUSU-UHFFFAOYSA-M disodium;sulfanide Chemical compound [Na+].[Na+].[SH-] VDQVEACBQKUUSU-UHFFFAOYSA-M 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003480 eluent Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000009144 enzymatic modification Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000002538 fungal effect Effects 0.000 description 1
- 238000005227 gel permeation chromatography Methods 0.000 description 1
- 238000002523 gelfiltration Methods 0.000 description 1
- 239000006481 glucose medium Substances 0.000 description 1
- 239000001963 growth medium Substances 0.000 description 1
- 108010002430 hemicellulase Proteins 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 230000001533 ligninolytic effect Effects 0.000 description 1
- 239000012978 lignocellulosic material Substances 0.000 description 1
- ISPYRSDWRDQNSW-UHFFFAOYSA-L manganese(II) sulfate monohydrate Chemical compound O.[Mn+2].[O-]S([O-])(=O)=O ISPYRSDWRDQNSW-UHFFFAOYSA-L 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 229910000402 monopotassium phosphate Inorganic materials 0.000 description 1
- 235000019796 monopotassium phosphate Nutrition 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- GRLPQNLYRHEGIJ-UHFFFAOYSA-J potassium aluminium sulfate Chemical compound [Al+3].[K+].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GRLPQNLYRHEGIJ-UHFFFAOYSA-J 0.000 description 1
- GNSKLFRGEWLPPA-UHFFFAOYSA-M potassium dihydrogen phosphate Chemical compound [K+].OP(O)([O-])=O GNSKLFRGEWLPPA-UHFFFAOYSA-M 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- HELHAJAZNSDZJO-OLXYHTOASA-L sodium L-tartrate Chemical compound [Na+].[Na+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O HELHAJAZNSDZJO-OLXYHTOASA-L 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000001433 sodium tartrate Substances 0.000 description 1
- 229960002167 sodium tartrate Drugs 0.000 description 1
- 235000011004 sodium tartrates Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 235000000346 sugar Nutrition 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229960003495 thiamine Drugs 0.000 description 1
- DPJRMOMPQZCRJU-UHFFFAOYSA-M thiamine hydrochloride Chemical compound Cl.[Cl-].CC1=C(CCO)SC=[N+]1CC1=CN=C(C)N=C1N DPJRMOMPQZCRJU-UHFFFAOYSA-M 0.000 description 1
- 238000000870 ultraviolet spectroscopy Methods 0.000 description 1
- WJUFSDZVCOTFON-UHFFFAOYSA-N veratraldehyde Chemical compound COC1=CC=C(C=O)C=C1OC WJUFSDZVCOTFON-UHFFFAOYSA-N 0.000 description 1
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 1
- 229910000368 zinc sulfate Inorganic materials 0.000 description 1
- 239000011686 zinc sulphate Substances 0.000 description 1
- 235000009529 zinc sulphate Nutrition 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
- 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
- D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Microbiology (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Enzymes And Modification Thereof (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB898920596A GB8920596D0 (en) | 1989-09-12 | 1989-09-12 | Improvements in or relating to organic compounds |
| GB898920595A GB8920595D0 (en) | 1989-09-12 | 1989-09-12 | Improvements in or relating to organic compounds |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE69015294D1 DE69015294D1 (de) | 1995-02-02 |
| DE69015294T2 true DE69015294T2 (de) | 1995-05-18 |
Family
ID=26295910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1990615294 Expired - Fee Related DE69015294T2 (de) | 1989-09-12 | 1990-09-10 | Bleichen von Holzstoff mit Enzymen. |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP0418201B1 (pt) |
| JP (1) | JPH03104993A (pt) |
| AU (1) | AU646403B2 (pt) |
| BR (1) | BR9004525A (pt) |
| CA (1) | CA2025079A1 (pt) |
| DE (1) | DE69015294T2 (pt) |
| ES (1) | ES2067719T3 (pt) |
| FI (1) | FI904456A0 (pt) |
| NO (1) | NO178201C (pt) |
| PT (1) | PT95273A (pt) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0691290A (ja) * | 1991-10-11 | 1994-04-05 | Kobe Steel Ltd | パルプ漂白廃水の処理方法 |
| JP2525704B2 (ja) * | 1992-03-16 | 1996-08-21 | 日本製紙株式会社 | 積層板用原紙の製造法 |
| US5498534A (en) * | 1992-03-25 | 1996-03-12 | The United States Of America As Represented By The Secretary Of Agriculture | Method of removing color from wood pulp using xylanase from streptomyces roseiscleroticus NRRL B-11019 |
| US5369024A (en) * | 1992-03-25 | 1994-11-29 | The United States Of America As Represented By The Secretary Of Agriculture | Xylanase from streptomyces roseiscleroticus NRRL-11019 for removing color from kraft wood pulps |
| FI970158A (fi) * | 1997-01-14 | 1998-07-15 | Neste Oy | Uusi kuitulevyliima |
| US6372464B1 (en) * | 2000-06-19 | 2002-04-16 | Novozymes Biotech, Inc. | Polypeptides having peroxidase activity and nucleic acids encoding same |
| CN105082302A (zh) * | 2015-03-31 | 2015-11-25 | 西南林业大学 | 一种高强度刨花板的制备方法 |
| CN113957737A (zh) * | 2021-11-10 | 2022-01-21 | 安徽鑫光新材料科技股份有限公司 | 一种秸秆生物法无污染制浆工艺 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| JPH0671424B2 (ja) * | 1986-03-18 | 1994-09-14 | 新王子製紙株式会社 | リグニン分解酵素およびその製造方法 |
| KR880701776A (ko) * | 1986-09-12 | 1988-11-05 | 예안 클라메르 한스 두돌프 하우스 | 유기 화합물에 있어서의 또는 그와 관련된 개량방법 |
| DE3636208A1 (de) * | 1986-10-24 | 1988-05-05 | Call Hans Peter | Verfahren zur delignifizierung und bleichung von lignicellulosehaltigem bzw. ligninhaltigem material bzw. lignin durch enzymatische behandlung |
| US4830708A (en) * | 1987-11-30 | 1989-05-16 | Pulp And Paper Research Institute Of Canada | Direct biological bleaching of hardwood kraft pulp with the fungus Coriolus versicolor |
| ZA894239B (en) * | 1988-06-08 | 1990-03-28 | Int Paper Co | Enzymatic delignification of lignocellulosic material |
-
1990
- 1990-09-10 FI FI904456A patent/FI904456A0/fi not_active IP Right Cessation
- 1990-09-10 ES ES90810681T patent/ES2067719T3/es not_active Expired - Lifetime
- 1990-09-10 EP EP90810681A patent/EP0418201B1/en not_active Expired - Lifetime
- 1990-09-10 NO NO903924A patent/NO178201C/no unknown
- 1990-09-10 AU AU62323/90A patent/AU646403B2/en not_active Ceased
- 1990-09-10 DE DE1990615294 patent/DE69015294T2/de not_active Expired - Fee Related
- 1990-09-11 CA CA 2025079 patent/CA2025079A1/en not_active Abandoned
- 1990-09-11 BR BR909004525A patent/BR9004525A/pt unknown
- 1990-09-11 PT PT9527390A patent/PT95273A/pt not_active Application Discontinuation
- 1990-09-12 JP JP24017190A patent/JPH03104993A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE69015294D1 (de) | 1995-02-02 |
| NO178201B (no) | 1995-10-30 |
| CA2025079A1 (en) | 1991-03-13 |
| PT95273A (pt) | 1991-05-22 |
| NO903924L (no) | 1991-03-13 |
| NO903924D0 (no) | 1990-09-10 |
| EP0418201A3 (en) | 1992-09-23 |
| EP0418201B1 (en) | 1994-12-21 |
| ES2067719T3 (es) | 1995-04-01 |
| NO178201C (no) | 1996-02-07 |
| AU646403B2 (en) | 1994-02-24 |
| FI904456A0 (fi) | 1990-09-10 |
| EP0418201A2 (en) | 1991-03-20 |
| AU6232390A (en) | 1991-03-21 |
| JPH03104993A (ja) | 1991-05-01 |
| BR9004525A (pt) | 1991-09-10 |
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