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MICROBIAL OXIDATION [4 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2023-06-12

English

Subject field(s)
  • Biochemistry
CONT

Diverse aerobic bacteria oxidize the three most abundant reduced trace gases in the atmosphere, namely hydrogen(H2), carbon monoxide(CO) and methane(CH4). This review describes the taxonomic distribution, physiological role and biochemical basis of microbial oxidation of these atmospheric trace gases, as well as the ecological, environmental, medical and astrobiological importance of this process.

French

Domaine(s)
  • Biochimie
CONT

Dans les lacs, une grande quantité de matière organique est dégradée de façon anaérobie dans les sédiments et les eaux anoxiques, produisant du CH4. Une partie du CH4 produit est alors émise dans l'atmosphère - par ébullition ou diffusion - mais une autre partie conséquente n'atteint jamais l'atmosphère à cause de l'oxydation microbienne dans ces écosystèmes.

Spanish

Save record 1

Record 2 2018-12-17

English

Subject field(s)
  • Biochemistry
CONT

Methane oxidation is a microbial metabolic process for energy generation and carbon assimilation from methane that is carried out by specific groups of bacteria, the methanotrophs. Methane(CH4) is oxidized with molecular oxygen(O2) to carbon dioxide(CO2).

French

Domaine(s)
  • Biochimie

Spanish

Save record 2

Record 3 2011-12-12

English

Subject field(s)
  • Peat and Peat Bogs
  • Biogeography
  • Soil Science
DEF

The partial decomposition of vegetable matter under waterlogged and oxygen-deficient conditions.

CONT

Coal forms when plants are deposited in swamps, then submerged rapidly enough to limit oxidation but allow microbial decomposition. In the Pocahontas Formation, these conditions were met in fluvial settings as base level rise resulted in flooding and the formation of backswamps on extensive braided river floodplains. These backswamps were shallow and of a constant depth to allow enough plant mass and its covering of sediment to accumulate as undisturbed peat. This process, known as peatification, continued as decomposing plants were progressively covered with sediments...

OBS

peat formation: term used at Natural Resources Canada - Earth Sciences Sector.

French

Domaine(s)
  • Tourbières
  • Biogéographie
  • Science du sol
DEF

Processus de constitution d'une tourbière.

CONT

La formation de la tourbe, au cours de l'existence de la tourbière, peut être appelée turbigenèse, turfigenèse, turbification ou tourbification. C'est l'élément fondamental de l'existence de la tourbière. C'est l'accumulation progressive de matière organique non décomposée (essentiellement végétale) et son tassement qui contribue au fil du temps à former la tourbe. La tourbe se développe en général dans un milieu presque constamment gorgé d'eau, sous un climat frais et humide, conditions très défavorables à la décomposition de la matière organique.

OBS

turbification : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

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Record 4 2004-01-20

English

Subject field(s)
  • Packaging Techniques
  • Food Industries
CONT

Packaging gases in food are inert gases employed to occupy space in packaging. If ordinary air is used, this may encourage microbial growth or oxidation of the food.

CONT

E938 Argon is a packaging gas used in the food industry.

French

Domaine(s)
  • Techniques d'emballage
  • Industrie de l'alimentation
DEF

Gaz autres que l'air, placés dans un contenant avant, pendant ou après l'introduction d'une denrée alimentaire dans ce contenant.

Spanish

Save record 4

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