Fraction of faecal solids that is bacteria

Value 54.7 % Range: ±1.7 %
Organism Human Homo sapiens
Reference Stephen AM, Cummings JH. The microbial contribution to human faecal mass. J Med Microbiol. 1980 Feb13(1):45-56. p.55 top paragraphPubMed ID7359576
Method "A method has been developed, based on techniques used for isolating bacteria from the rumen, that enables human faeces to be fractionated into three major components. The method requires repeated, vigorous agitation of a suspension of faecal solids with detergent, the use of a stomacher, and high-speed centrifugation."
Comments "When faeces from nine healthy subjects on a metabolically controlled British-type diet were studied, bacteria comprised 54.7±1.7% of the total solids, fibre 16.7±0.8% and soluble material 24.0±1.3%." ~60% according to Guarner et al., 2003 PMID 12583961 p.512 left column top paragraph
Entered by Uri M
ID 108285