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BACILLUS STEAROTHERMOPHILUS [6 records]

Record 1 2011-11-22

English

Subject field(s)
  • Microbiology and Parasitology
  • Food Preservation and Canning
DEF

Fermentation of canned products (as peas or corn) that is caused by thermoduric microorganisms which survive the canning process and that is characterized by the formation of acid without gas.

French

Domaine(s)
  • Microbiologie et parasitologie
  • Conservation des aliments et conserverie
CONT

Les germes thermophiles(...) sont(...) tous thermorésistants. Parmi eux, on rencontre des germes aérobies, le plus connu est Bacillus stearothermophilus, germe responsable du "flat sour"(surissement sans bombage) et production d’acide lactique

OBS

Fermentation bacillaire thermoacidophile dans les conserves acides (p. ex. tomates).

Spanish

Save record 1

Record 2 2011-06-14

English

Subject field(s)
  • Biochemistry
OBS

Term(s) taken from a Canadian laboratory-equipment company's catalogue.

French

Domaine(s)
  • Biochimie
OBS

Terme(s) tiré(s) du catalogue d’une compagnie canadienne d’équipement de laboratoire.

Spanish

Save record 2

Record 3 2011-01-13

English

Subject field(s)
  • Biological Sciences
DEF

Enzyme isolated from microorganisms. They can be classified into two forms. One is extracellular, excreted from microbial cells during culture, and the other is intracellular, remaining in the cells. For the immobilization of the latter, the enzymes must be extracted from the cells, and in some cases purification is necessary.

CONT

Microbial enzymes are more useful than enzymes derived from plants or animals because of the great variety of catalytic activities available, because cheap, regular, abundant supplies of even quality can usually be developed, occasionally by surface culture but usually by the deep culture aerobic fermentation techniques widely used in the production of antibiotics; also because microbial enzymes are usually more stable than the corresponding plant and animal enzymes, and because microbial enzyme production is usually a more convenient and safer procedure than production from plant and animal sources.

French

Domaine(s)
  • Sciences biologiques
DEF

Enzyme synthétisée chez les microorganismes : les microbes se prêtent très bien à la production des enzymes, parce que les concentrations de celles-ci peuvent être considérablement accrues en agissant sur les facteurs du milieu ou en modifiant le génome.

CONT

En ce qui concerne le clonage d’enzymes microbiennes, l'impact du génie génétique reste encore à préciser. Le microorganisme recombiné génétiquement est en concurrence avec les mutants, qui peuvent être performants au plan de l'excrétion; le différentiel de performance risque d’être faible. Un cas mérite toutefois d’être signalé, celui de l'alpha amylase maltogénique thermostable de Bacillus stearothermophilus. Le gène de cette enzyme a été cloné et s’exprime dans B. subtilis. Cette approche s’avère intéressante car on ne pouvait pas par mutagénèse sur l'espèce originale faire le saut quantitatif nécessaire au plan économique.

Spanish

Save record 3

Record 4 2004-12-15

English

Subject field(s)
  • Microbiology and Parasitology
OBS

The term Bacillus stearothermophilus was replaced in 2001 by Geobacillus stearothermophilus.

Key term(s)
  • B. stearothermophilus
  • B. stearo-thermophilus
  • Geobacillus stearo-thermophilus
  • G.stearothermophilus
  • G. stearo-thermophilus

French

Domaine(s)
  • Microbiologie et parasitologie
OBS

Le terme Bacillus stearothermophilus a été changé en 2001, pour Geobacillus stearothermophilus.

OBS

Geobacillus stearothermophilus; Bacillus stearothermophilus : Ces termes s’emploient au masculin.

Key term(s)
  • B. stearothermophilus
  • B. stearo-thermophilus
  • Geobacillus stearo-thermophilus
  • G. stearothermophilus
  • G. stearo-thermophilus

Spanish

Save record 4

Record 5 1996-01-03

English

Subject field(s)
  • Microbiology and Parasitology

French

Domaine(s)
  • Microbiologie et parasitologie
DEF

Méthode de diffusion en gélose utilisant B. stearothermophilus pour la détection des antibiotiques dans le lait.

OBS

B. stearothermophilus sert d’indicateur.

Spanish

Save record 5

Record 6 1975-03-11

English

Subject field(s)
  • Microbiology and Parasitology
DEF

Bacteria that render canned food sour, without gas production, i.e. the ends of the can are not swelled but remain flat.

French

Domaine(s)
  • Microbiologie et parasitologie
CONT

Parmi eux on rencontre : des germes aérobies, les plus connu est bacillus stearothermophilus, germe responsable du «flat sour»(surissement sans bombage) et producteur d’acide lactique mais pas de gaz.

Spanish

Save record 6

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