Isolation and characterization of a strictly xylan-degrading Dictyoglomus from a man-made, thermophilic anaerobic environment

A thermophilic, strictly anaerobic eubacterium which utilized an unusually limited range of substrates was isolated from a sludge and pulp sample from a paper-pulp cooling tank at a paper-board factory in Finland. The organism grew only with beech wood or oat spelt xylan; no growth occurred with sol...

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Bibliographic Details
Published in:Archives of microbiology 1991-12, Vol.157 (1), p.13-17
Main Authors: MATHRANI, I. M, AHRING, B.K
Format: Article
Language:English
Subjects:
Bacteriology
Biological and medical sciences
Biotechnology
Fundamental and applied biological sciences. Psychology
Microbiology
Miscellaneous
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Summary:A thermophilic, strictly anaerobic eubacterium which utilized an unusually limited range of substrates was isolated from a sludge and pulp sample from a paper-pulp cooling tank at a paper-board factory in Finland. The organism grew only with beech wood or oat spelt xylan; no growth occurred with soluble sugars, other polysaccharides, peptone, or yeast extract. The organism grew fastest at 65 to 75 degree C and pH 6.5 to 8.4, with a maximum growth temperature between 75 and 80 degree C and an upper pH limit near 9. During growth on beech xylan the isolated produced only acetate, H sub(2), and CO sub(2) as fermentation products.
ISSN:0302-8933
1432-072X
DOI:10.1007/BF00245328