In:
Applied Microbiology, American Society for Microbiology, Vol. 17, No. 1 ( 1969-01), p. 176-178
Abstract:
Hydrogenomonas eutropha cells harvested from semicontinuous autotrophic culture and washed free of substrate contain about 13% of nitrogen on a dry-solids basis. Biological value and digestibility of the bacterial nitrogen were determined in the rat by use of an abbreviated Mitchell-Thomas nitrogen balance technique and casein as the standard protein. Casein nitrogen was 99% digestible, and that of both whole boiled and sonically ruptured bacterial cells was 93%. Biological value of casein and the bacterial preparations was uniformly 77%. Amino acid composition of the bacteria, as in the case of casein, indicates a first limitation of sulfur-containing amino acids. These compositional features suggest that H. eutropha may be potentially valuable as a protein supplement in animal feeds.
Type of Medium:
Online Resource
ISSN:
0003-6919
DOI:
10.1128/am.17.1.176-178.1969
Language:
English
Publisher:
American Society for Microbiology
Publication Date:
1969
detail.hit.zdb_id:
207801-6
detail.hit.zdb_id:
1478346-0
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