Processing

Please wait...

PATENTSCOPE will be unavailable a few hours for maintenance reason on Sunday 05.04.2020 at 10:00 AM CEST
Settings

Settings

1. WO1991000343 - MUTANT ENZYME HAVING REDUCED STABILITY UNDER INDUSTRIAL APPLICATION CONDITIONS

Publication Number WO/1991/000343
Publication Date 10.01.1991
International Application No. PCT/NL1990/000091
International Filing Date 27.06.1990
IPC
C12N 9/00 2006.01
CCHEMISTRY; METALLURGY
12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
9Enzymes, e.g. ligases (6.); Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating, or purifying enzymes
C12N 9/28 2006.01
CCHEMISTRY; METALLURGY
12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
9Enzymes, e.g. ligases (6.); Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating, or purifying enzymes
14Hydrolases (3.)
24acting on glycosyl compounds (3.2)
26acting on alpha-1, 4-glucosidic bonds, e.g. hyaluronidase, invertase, amylase
28Alpha-amylase from microbial source, e.g. bacterial amylase
C12N 15/52 2006.01
CCHEMISTRY; METALLURGY
12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
15Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
09Recombinant DNA-technology
11DNA or RNA fragments; Modified forms thereof
52Genes encoding for enzymes or proenzymes
CPC
C12N 15/52
CCHEMISTRY; METALLURGY
12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
15Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
09Recombinant DNA-technology
11DNA or RNA fragments; Modified forms thereof
52Genes encoding for enzymes or proenzymes
C12N 9/00
CCHEMISTRY; METALLURGY
12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
9Enzymes; Proenzymes; Compositions thereof
C12N 9/2417
CCHEMISTRY; METALLURGY
12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
9Enzymes; Proenzymes; Compositions thereof
14Hydrolases (3)
24acting on glycosyl compounds (3.2)
2402hydrolysing O- and S- glycosyl compounds (3.2.1)
2405Glucanases
2408acting on alpha -1,4-glucosidic bonds
2411Amylases
2414Alpha-amylase (3.2.1.1.)
2417from microbiological source
Applicants
  • GIST-BROCADES N.V. [NL/NL]; Wateringseweg 1 P.O. Box 1 NL-2600 MA Delft, NL (AllExceptUS)
  • VAN EIJK, Jan, Henricus [NL/NL]; NL (UsOnly)
  • QUAX, Wilhelmus, Johannes [NL/NL]; NL (UsOnly)
  • SANDERS, Johan, Pieter, Marinus [NL/NL]; NL (UsOnly)
Inventors
  • VAN EIJK, Jan, Henricus; NL
  • QUAX, Wilhelmus, Johannes; NL
  • SANDERS, Johan, Pieter, Marinus; NL
Agents
  • MATULEWICZ, Emil, Rudolf, Antonius ; Gist-Brocades N.V. Patents and Trademarks dept. Wateringseweg 1 P.O. Box 1 NL-2600 MA Delft, NL
Priority Data
89201732.829.06.1989NL
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) MUTANT ENZYME HAVING REDUCED STABILITY UNDER INDUSTRIAL APPLICATION CONDITIONS
(FR) ENZYME MUTANTE AYANT UNE STABILITE REDUITE DANS DES CONDITIONS D'APPLICATION INDUSTRIELLE
Abstract
(EN)
A mutant enzyme is provided which exhibits reduced stability under industrial application conditions. As an example mutant bacterial $g(a)-amylase is provided which has reduced thermostability during baking conditions. This modified $g(a)-amylase can be suitably used for improving both loaf volume and crumb softness of bread products without causing any danger of overdextrination.
(FR)
Une enzyme mutante est prévue qui présente une stabilité réduite dans des conditions d'application industrielle. A titre d'exemple, de l'$g(a)-amylase bactérienne mutante est prévue qui présente une thermostabilité réduite dans des conditions de cuisson. Cette $g(a)-amylase modifiée est destinée à améliorer à la fois le volume du pain et le moelleux de la mie des produits de boulangerie sans risque de surdextrinification.
Also published as
FI910908
NO19910794
Latest bibliographic data on file with the International Bureau