Document Detail


Methane production from glucose in vitro by mixed rumen bacteria.
MedLine Citation:
PMID:  6056628     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
1. Methane was produced in vitro by incubating cell suspensions of rumen bacteria with glucose, under nitrogen. The amount of methane produced varied considerably and was lowered by high glucose concentrations. Carbon dioxide, acetic acid, propionic acid, butyric acid and lactic acid were also produced. An oxidation-reduction balance of near unity could be calculated, although carbon recovery was low. Under the experimental conditions, rumen bacteria used most of the metabolic hydrogen produced during the oxidation of glucose to form lactic acid. 2. Lower methane production at high glucose concentrations was balanced by higher lactic acid production. Low pH values due to a high production rate of lactic acid might explain the inhibition of methane production. 3. No lactic acid, less methane, but considerably more propionic acid were formed when nitrogen was replaced by carbon dioxide in the incubation system.
Authors:
D I Demeyer; H K Henderickx
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Biochemical journal     Volume:  105     ISSN:  0264-6021     ISO Abbreviation:  Biochem. J.     Publication Date:  1967 Oct 
Date Detail:
Created Date:  1968-01-06     Completed Date:  1968-01-06     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  2984726R     Medline TA:  Biochem J     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  271-7     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Acetic Acids / metabolism
Animals
Butyrates / metabolism
Carbon Dioxide / metabolism
Carbon Isotopes
Fermentation
Fistula
Glucose / metabolism*
Hydrogen / metabolism
Hydrogen-Ion Concentration
Lactates / metabolism
Methane / biosynthesis*
Oxidation-Reduction
Propionates / metabolism
Rumen / microbiology*
Sheep
Chemical
Reg. No./Substance:
0/Acetic Acids; 0/Butyrates; 0/Carbon Isotopes; 0/Lactates; 0/Propionates; 124-38-9/Carbon Dioxide; 1333-74-0/Hydrogen; 50-99-7/Glucose; 74-82-8/Methane
Comments/Corrections

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