Novel characteristics of Bifidobacterium bifidum in solid state fermentation system

The characteristics of Bifidobacterium bifidum grown in solid state fermentation (SSF) system (water content of media 54.5 and 68.8%) was compared with the submerged fermentation (SmF) system (water content of medium: 89.8%). Besides lactic acid (lactate) and acetic acid (acetate), the bacterium was...

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Bibliographic Details
Published in:World journal of microbiology & biotechnology 2005-10, Vol.21 (6-7), p.1245-1248
Main Authors: RUNLIN HAN, EBERT, C. Edward, ZHIHONG ZHAO, LIMING LI, HEPING ZHANG, RUIHUA TIAN
Format: Article
Language:English
Subjects:
Acetic acid
Bacteria
Bifidobacterium bifidum
Biological and medical sciences
Biotechnology
Fermentation
Fundamental and applied biological sciences. Psychology
Water content
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Summary:The characteristics of Bifidobacterium bifidum grown in solid state fermentation (SSF) system (water content of media 54.5 and 68.8%) was compared with the submerged fermentation (SmF) system (water content of medium: 89.8%). Besides lactic acid (lactate) and acetic acid (acetate), the bacterium was able to secrete propionic acid (propionate) and butyric acid (butyrate) under SSF conditions. However, it only produced lactate and acetate under SmF conditions. The ratio of lactate to acetate was 1.26-1.62:1 in SSF but it was 1:2 in SmF. A higher content of C16:0 and C18:1 as well as a lower content of C18:0 cell membrane fatty acids were observed in SSF than in SmF. There was a lower growth rate, a lower viable count and a longer logarithmic growth phase for B. bifidum cultivated in SSF than in SmF.
ISSN:0959-3993
1573-0972
DOI:10.1007/s11274-005-1805-z