WO1994010298A1 - Stabilization of hemoproteins - Google Patents
Stabilization of hemoproteins Download PDFInfo
- Publication number
- WO1994010298A1 WO1994010298A1 PCT/DK1993/000345 DK9300345W WO9410298A1 WO 1994010298 A1 WO1994010298 A1 WO 1994010298A1 DK 9300345 W DK9300345 W DK 9300345W WO 9410298 A1 WO9410298 A1 WO 9410298A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- peroxidase
- stabilizer
- alkyl
- activity
- hydrogen peroxide
- Prior art date
Links
- 230000006641 stabilisation Effects 0.000 title description 11
- 238000011105 stabilization Methods 0.000 title description 11
- 239000003381 stabilizer Substances 0.000 claims abstract description 36
- 239000007864 aqueous solution Substances 0.000 claims abstract description 7
- 125000002877 alkyl aryl group Chemical group 0.000 claims abstract description 6
- 125000003118 aryl group Chemical group 0.000 claims abstract description 6
- 102000003992 Peroxidases Human genes 0.000 claims description 51
- 108040007629 peroxidase activity proteins Proteins 0.000 claims description 46
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 35
- 230000000694 effects Effects 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 21
- 108010053835 Catalase Proteins 0.000 claims description 13
- 238000002360 preparation method Methods 0.000 claims description 9
- 125000000217 alkyl group Chemical group 0.000 claims description 7
- 239000008187 granular material Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000004061 bleaching Methods 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 239000002243 precursor Substances 0.000 claims description 6
- 102000004316 Oxidoreductases Human genes 0.000 claims description 5
- 108090000854 Oxidoreductases Proteins 0.000 claims description 5
- 108700020962 Peroxidase Proteins 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 230000000087 stabilizing effect Effects 0.000 claims description 5
- 108010035722 Chloride peroxidase Proteins 0.000 claims description 4
- 239000002002 slurry Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 108010036012 Iodide peroxidase Proteins 0.000 claims description 2
- 102100027188 Thyroid peroxidase Human genes 0.000 claims description 2
- 125000005037 alkyl phenyl group Chemical group 0.000 claims description 2
- 229920005610 lignin Polymers 0.000 claims description 2
- 238000012986 modification Methods 0.000 claims description 2
- 230000004048 modification Effects 0.000 claims description 2
- 239000002351 wastewater Substances 0.000 claims description 2
- 102100035882 Catalase Human genes 0.000 claims 1
- 125000003837 (C1-C20) alkyl group Chemical group 0.000 abstract 1
- 102000016938 Catalase Human genes 0.000 description 12
- 102000004190 Enzymes Human genes 0.000 description 10
- 108090000790 Enzymes Proteins 0.000 description 10
- 229940088598 enzyme Drugs 0.000 description 10
- 229920004896 Triton X-405 Polymers 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- ZTOJFFHGPLIVKC-YAFCTCPESA-N (2e)-3-ethyl-2-[(z)-(3-ethyl-6-sulfo-1,3-benzothiazol-2-ylidene)hydrazinylidene]-1,3-benzothiazole-6-sulfonic acid Chemical compound S\1C2=CC(S(O)(=O)=O)=CC=C2N(CC)C/1=N/N=C1/SC2=CC(S(O)(=O)=O)=CC=C2N1CC ZTOJFFHGPLIVKC-YAFCTCPESA-N 0.000 description 6
- 241000222511 Coprinus Species 0.000 description 6
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 6
- 238000011534 incubation Methods 0.000 description 6
- 230000002255 enzymatic effect Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- JYCQQPHGFMYQCF-UHFFFAOYSA-N 4-tert-Octylphenol monoethoxylate Chemical compound CC(C)(C)CC(C)(C)C1=CC=C(OCCO)C=C1 JYCQQPHGFMYQCF-UHFFFAOYSA-N 0.000 description 3
- 108010089254 Cholesterol oxidase Proteins 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- 239000002202 Polyethylene glycol Substances 0.000 description 3
- 108010055297 Sterol Esterase Proteins 0.000 description 3
- 102000000019 Sterol Esterase Human genes 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- -1 halide ions Chemical class 0.000 description 3
- 229920002113 octoxynol Polymers 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229920001223 polyethylene glycol Polymers 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 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 2
- 241000223198 Humicola Species 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 241000223255 Scytalidium Species 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 2
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 2
- 239000001166 ammonium sulphate Substances 0.000 description 2
- 235000011130 ammonium sulphate Nutrition 0.000 description 2
- DMSMPAJRVJJAGA-UHFFFAOYSA-N benzo[d]isothiazol-3-one Chemical compound C1=CC=C2C(=O)NSC2=C1 DMSMPAJRVJJAGA-UHFFFAOYSA-N 0.000 description 2
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- HVYWMOMLDIMFJA-DPAQBDIFSA-N cholesterol Chemical compound C1C=C2C[C@@H](O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2 HVYWMOMLDIMFJA-DPAQBDIFSA-N 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000008103 glucose Substances 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000008363 phosphate buffer Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- ZTOJFFHGPLIVKC-UHFFFAOYSA-N 3-ethyl-2-[(3-ethyl-6-sulfo-1,3-benzothiazol-2-ylidene)hydrazinylidene]-1,3-benzothiazole-6-sulfonic acid Chemical compound S1C2=CC(S(O)(=O)=O)=CC=C2N(CC)C1=NN=C1SC2=CC(S(O)(=O)=O)=CC=C2N1CC ZTOJFFHGPLIVKC-UHFFFAOYSA-N 0.000 description 1
- 241000974482 Aricia saepiolus Species 0.000 description 1
- 240000003291 Armoracia rusticana Species 0.000 description 1
- 235000011330 Armoracia rusticana Nutrition 0.000 description 1
- 108010073997 Bromide peroxidase Proteins 0.000 description 1
- 244000251987 Coprinus macrorhizus Species 0.000 description 1
- 102000000634 Cytochrome c oxidase subunit IV Human genes 0.000 description 1
- 108050008072 Cytochrome c oxidase subunit IV Proteins 0.000 description 1
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 1
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 1
- 108010015776 Glucose oxidase Proteins 0.000 description 1
- 239000004366 Glucose oxidase Substances 0.000 description 1
- 108010001336 Horseradish Peroxidase Proteins 0.000 description 1
- 108010054320 Lignin peroxidase Proteins 0.000 description 1
- 241000222393 Phanerochaete chrysosporium Species 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 108020004511 Recombinant DNA Proteins 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid group Chemical group C(C1=CC=CC=C1)(=O)O WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 108010026119 cellobiose oxidase Proteins 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000012000 cholesterol Nutrition 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000004925 denaturation Methods 0.000 description 1
- 230000036425 denaturation Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- VTIIJXUACCWYHX-UHFFFAOYSA-L disodium;carboxylatooxy carbonate Chemical compound [Na+].[Na+].[O-]C(=O)OOC([O-])=O VTIIJXUACCWYHX-UHFFFAOYSA-L 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007046 ethoxylation reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 229940116332 glucose oxidase Drugs 0.000 description 1
- 235000019420 glucose oxidase Nutrition 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 150000004966 inorganic peroxy acids Chemical class 0.000 description 1
- 150000008040 ionic compounds Chemical class 0.000 description 1
- 229960004592 isopropanol Drugs 0.000 description 1
- 108010062085 ligninase Proteins 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 239000000391 magnesium silicate Substances 0.000 description 1
- 229910052919 magnesium silicate Inorganic materials 0.000 description 1
- 235000019792 magnesium silicate Nutrition 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 150000007524 organic acids Chemical group 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 150000004967 organic peroxy acids Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 229960001922 sodium perborate Drugs 0.000 description 1
- 229940045872 sodium percarbonate Drugs 0.000 description 1
- YKLJGMBLPUQQOI-UHFFFAOYSA-M sodium;oxidooxy(oxo)borane Chemical compound [Na+].[O-]OB=O YKLJGMBLPUQQOI-UHFFFAOYSA-M 0.000 description 1
- WSWCOQWTEOXDQX-MQQKCMAXSA-N sorbic acid group Chemical group C(\C=C\C=C\C)(=O)O WSWCOQWTEOXDQX-MQQKCMAXSA-N 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 235000000346 sugar Nutrition 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
- 239000004291 sulphur dioxide Substances 0.000 description 1
- 235000010269 sulphur dioxide Nutrition 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
- C12N9/0004—Oxidoreductases (1.)
- C12N9/0065—Oxidoreductases (1.) acting on hydrogen peroxide as acceptor (1.11)
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/38—Products with no well-defined composition, e.g. natural products
- C11D3/386—Preparations containing enzymes, e.g. protease or amylase
- C11D3/38654—Preparations containing enzymes, e.g. protease or amylase containing oxidase or reductase
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
- C12N9/96—Stabilising an enzyme by forming an adduct or a composition; Forming enzyme conjugates
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
- D06L4/10—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen
- D06L4/12—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen combined with specific additives
Definitions
- This invention relates to the stabilization of hemoproteins, particularly oxidoreductases such as peroxidase or catalase.
- oxidoreductases such as peroxidase or catalase are known to be hemoproteins. They can be obtained from many sources, e.g. from horseradish and microorganisms such as Coprinus (EP 179,486), Humicola or Scytalidium (WO 92/17571). Peroxidase can be added to a detergent together with a hydrogen peroxide precursor to improve the bleaching of stains (WO 89/09813) or to inhibit the transfer of dye from one textile to another (WO 91/05839). Other known uses of peroxidase are in the pulp and paper industry (EP 418,201 , EP 429,422, EP 433,258) and in production of particle boards (US 4,432,921).
- Catalase may be used for removing residual hydrogen peroxide after bleaching, e.g. of textiles. It is in some cases desirable to improve the stability of hemoproteins against denaturation and loss of enzyme activity, and it is the object of this invention to provide a method of stabilizing hemoproteins in solution.
- alkoxylated non-ionic compounds such as polyethylene glycol and alkylphenol ethoxylate, have a strong stabilizing effect on hemoproteins such as peroxidase in solution.
- US-A-4,414,326 and EP-A-0 272 578 describe the use of alkoxylated compounds of the above type in an enzymatic reagent composition for the determination of cholesterol.
- the compositions contained cholesterol esterase, cholesterol oxidase and peroxidase. Said documents describe activation and stabilization of cholesterol esterase and activation of cholesterol oxidase (US-A- 4,414,326 at col. 9 I. 26-28; EP-A-0 272 578 at col. 2 I. 18-20). No effect of the alkoxylated compound on peroxidase was described. Use of cholesterol oxidase and cholesterol esterase is not contemplated in the present invention.
- the invention provides a method of stabilizing a hemoprotein in an aqueous solution, characterized by incorporating a stabilizer of the formula:
- R-0-(CHR'-CH 2 -0-) n H (I) wherein R H or C ⁇ C ⁇ alkyl, aryl or alkylaryl
- the invention also provides a process comprising addition of peroxidase and hydrogen peroxide or a precursor thereof, characterized by incorporating said stabilizer.
- the invention also provides a peroxidase preparation for use in said bleaching composition or said process, in the form of a slurry, a non-dusting granulate or a stabilized liquid, characterized by comprising said stabilizer.
- the method of the invention may be applied to any hemoprotein, e.g. an oxidoreductase.
- hemoprotein e.g. an oxidoreductase.
- peroxidase EC 1.11.1.7
- Coprinus particularly C. cinereus, vide EP 179,486
- lignin peroxidase ligninase
- Phanerochaete chrysosporium or catalase e.g. from Humicola or Scytalidium
- haloperoxidases i.e. peroxidases that utilize halide ions and hydrogen peroxide to form carbon-halogen bonds in substrates, e.g.
- the hemoprotein may be produced by recombinant DNA technology (WO 92/16634).
- Other examples are cellobiose oxidase or cytochrome oxidase
- PODU Peroxidase Unit
- the invention provides increased activity, in addition to increased stability.
- the chain length (n) is preferably 50-500, particularly 100-300.
- the stabilizer may be alcohol ethoxylate or alkyl-phenol ethoxylate (propoxylate), where R is a C 10 -C 18 linear or branched alkyl or alkyl-phenyl group.
- the chain length (n) is preferably 5-50, particularly 5-20.
- the amount of said stabilizer should be such that the weight ratio of stabilizer to hemoprotein is 1-50.
- Suitable amounts of stabilizer are 0.1-5 g/l of aqueous solution, 1-30% by weight of bleaching composition or 1 -10% by weight of peroxidase preparation.
- a suitable ratio of stabilizer and peroxidase corresponds to 0.2-5 mg of stabilizer per PODU of peroxidase activity (unit defined below).
- the stabilizer is typically used at pH in the range 4 - 10, more preferably 6 - 8. Hydrogen peroxide source
- the source of hydrogen peroxide can be hydrogen peroxide itself, a precursor thereof or an enzymatic system capable of generating it.
- the precursor of hydrogen peroxide may be an inorganic or organic peracid or salt thereof, e.g. sodium perborate or sodium percarbonate.
- the enzymatic system may be a combination of a suitable oxidase and a substrate thereof, e.g. glucose and glucose oxidase.
- peroxidase or haloperoxidase may be used together with hydrogen peroxide or a precursor thereof e.g. in a process for bleaching of pulp for paper production (SE 88/0673, EP 418,201), in treatment of waste water from pulp production (US 4,623,465, JP-A 2-31887), in production of mechanical pulp from a fibrous product (EP 429,422, EP 433,258) and for lignin modification, e.g. in particle board production (US 4,432,921).
- Catalase may be used to remove hydrogen peroxide from fabric which is bleached by an alkaline hydrogen peroxide treatment before dyeing (GB 2,216,149; JP 2-104781).
- the peroxidase preparation of the invention may be provided as a slurry, a granulate or stabilized liquid, in a form suited for storage and shipping.
- Enzyme granulates may be made by known methods, e.g. by extrusion or drum granulation according to CA 974,907, US 4,106,991, US 4,435,307 or US 4,661 ,452.
- the stabilizer may be mixed with other ingredients in the core of the granules, preferably at above 1% by weight, preferably above 2%, particularly above 5%, and generally below 40%.
- the stabilizer may be incorporated by coating a preformed enzyme granulate. The amount of the stabilizer in the coating should make up at least 1% by weight of the coated particles.
- the coating may be applied by known methods e.g. as described in British Patent No. 1 ,362,365, page 1 , line 82 to page 2, line 34, and British Patent application No. 34973/73 and 10842/74 corresponding to Belgium patent No. 146,802.
- the coating material may comprise, in addition to the ethoxylated compound, other waxy coating materials and particulate material, e.g. magnesium silicate, alumino silicates, CaSO 4I CaCO 3 , bentonite, zeolite or TiO 2 .
- a liquid enzyme preparation according to the invention may be stabilized against microbial infection by incorporation of a stabilizing agent known in the art.
- a stabilizing agent known in the art.
- examples are inorganic salts (such as NaCI), sugars (such as sucrose and glucose), polyols (such as glycerol, propylene glycol and sorbitol) and alcohols
- organic acids such as benzoic, sorbic, propionic, lactic and formic
- stabilizing agents are antioxidants (such as sulphur dioxide), 1 ,2-benz-iso-thiazolin-3-one (BIT) and parabens.
- the amount of the dispersant in the liquid enzyme preparation is preferably 1-10% by weight.
- An enzyme slurry may be produced according to WO 91/09941.
- Peroxidase activity is determined by an assay based on the oxidation of 2,2'-azinobis(3-ethylbenzothiazoline-6-sulfonate) (ABTS ® ) by hydrogen peroxide (as described by Bergmeyer H.U., Methods of enzymatic analysis, 3rd edition, vol III, p. 286-293, 1983, modified). The greenish-blue colour produced is photometered at 418 nm.
- the analytical conditions are 0.88 mM hydrogen peroxide, 1.67 mM ABTS, 0.1 M phosphate buffer, pH 7.0, 30°C incubated for 3 minutes.
- 1 peroxidase unit is the amount of enzyme that catalyzes the conversion of 1 xmol hydrogen peroxide per minute at these conditions.
- the concentration of Triton X 405 in the peroxidase samples was varied from 0 to 1.5 g/l before incubation under the conditions described in Example 2, except that the temperature was 0°C.
- the enzyme activity was determined at 0, 1.5 and 3.5 hour.
- Table 3 It appears from Table 3 that an improved peroxidase stability is obtained by addition of 1 or 1.5 g/l of Triton X 405 to the 0.2 ml peroxidase sample (corresponding to a concentration of Triton X 405 of about 0.1 g/l during incubation).
- the concentration of Coprinus peroxidase in the samples was varied from 0.3 - 0.6 PODU/ml to 3 - 6 PODU/ml.
- the concentration of Triton X 405 in the peroxidase sample was 1.5 g/l.
- Incubation with ABTS ® was carried out as described in Example 2, except that the temperature was 22°C.
- the enzyme activity was determined at 0, 1 , 2, and 3 hours. The results are shown in Table 4.
- Triton X 405 stabilizes the peroxidase activity for up to 3 hours at both the lower and the higher peroxidase concentrations.
- a catalase solution was obtained from a culture broth filtrate prepared according to WO 92/17571 by adding 15% propylene glycol and adjusting to pH 7.0. Stabilizer was added as shown in Table 5. Each solution was stored at 25 or 37°C for 2 or 4 weeks, the catalase activity was determined before and after storage, and results were expressed as residual activity in % of the initial activity. The same stabilizers were used as in Example 1.
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Genetics & Genomics (AREA)
- Zoology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Microbiology (AREA)
- Biotechnology (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Biochemistry (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Textile Engineering (AREA)
- Enzymes And Modification Thereof (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP93924531A EP0669975A1 (en) | 1992-10-28 | 1993-10-28 | Stabilization of hemoproteins |
JP6510574A JPH08502411A (ja) | 1992-10-28 | 1993-10-28 | ヘムタンパク質の安定化 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK1317/92 | 1992-10-28 | ||
DK921317A DK131792D0 (ja) | 1992-10-28 | 1992-10-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1994010298A1 true WO1994010298A1 (en) | 1994-05-11 |
Family
ID=8103498
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DK1993/000345 WO1994010298A1 (en) | 1992-10-28 | 1993-10-28 | Stabilization of hemoproteins |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0669975A1 (ja) |
JP (1) | JPH08502411A (ja) |
DK (1) | DK131792D0 (ja) |
WO (1) | WO1994010298A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109294547A (zh) * | 2018-10-23 | 2019-02-01 | 天津大港油田滨港集团博弘石油化工有限公司 | 一种驱油用阴非离子两性表面活性剂及其制备方法 |
CN113813372A (zh) * | 2021-09-26 | 2021-12-21 | 云锦华彰(北京)生物科技有限公司 | 血红素组合物、药物组合物及其应用 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6136578A (en) * | 1997-03-12 | 2000-10-24 | Novo Nordisk A/S | Storage-stable liquid formulation comprising a laccase |
WO2014034822A1 (ja) * | 2012-08-31 | 2014-03-06 | 協和メデックス株式会社 | カタラーゼの安定化方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4414326A (en) * | 1978-04-24 | 1983-11-08 | Goldberg Jack M | Diagnostic agents |
EP0152847A1 (en) * | 1984-02-03 | 1985-08-28 | Abbott Laboratories | Stabilized enzyme conjugate composition |
-
1992
- 1992-10-28 DK DK921317A patent/DK131792D0/da not_active Application Discontinuation
-
1993
- 1993-10-28 EP EP93924531A patent/EP0669975A1/en not_active Withdrawn
- 1993-10-28 JP JP6510574A patent/JPH08502411A/ja not_active Withdrawn
- 1993-10-28 WO PCT/DK1993/000345 patent/WO1994010298A1/en not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4414326A (en) * | 1978-04-24 | 1983-11-08 | Goldberg Jack M | Diagnostic agents |
EP0152847A1 (en) * | 1984-02-03 | 1985-08-28 | Abbott Laboratories | Stabilized enzyme conjugate composition |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN, Vol. 9, No. 78, C-274; & JP,A,59 210 885 (Toyo Boseki K.K.), 29 November 1984 (29.11.84). * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109294547A (zh) * | 2018-10-23 | 2019-02-01 | 天津大港油田滨港集团博弘石油化工有限公司 | 一种驱油用阴非离子两性表面活性剂及其制备方法 |
CN109294547B (zh) * | 2018-10-23 | 2020-11-20 | 天津大港油田滨港集团博弘石油化工有限公司 | 一种驱油用阴非离子两性表面活性剂及其制备方法 |
CN113813372A (zh) * | 2021-09-26 | 2021-12-21 | 云锦华彰(北京)生物科技有限公司 | 血红素组合物、药物组合物及其应用 |
Also Published As
Publication number | Publication date |
---|---|
DK131792D0 (ja) | 1992-10-28 |
EP0669975A1 (en) | 1995-09-06 |
JPH08502411A (ja) | 1996-03-19 |
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