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  • 1
    Electronic Resource
    Electronic Resource
    Frementation of biowaste to H2 by Bacillus licheniformis (1994)
    Springer
    World journal of microbiology and biotechnology 10 (1994), S. 224-227 
    Details
    ISSN: 1573-0972
    Keywords: Bacillus ; biogas-H ; biotechnology ; biowaste ; hydrogen ; non-conventional energy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract Completely damaged wheat grains, unfit for human consumption, were fermented to H2 by Bacillus licheniformis strain JK1. Batch-culture fermentation of wheat slurries [6% (w/v) total solids and 5.8% (w/v) organic solids (OS)] evolved 225, 205 and 203 l of biogas-H, a mixture of H2, CO2 and H2S, per kg OS at pH 6, 7 and 8, respectively. H2 constituted 25% to 41% of the total biogas-H evolved. In single-stage continuous culture, H2 generated/kg OS reduced was 70 l at pH 6 and 74 l at pH 7 and 8.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00360893
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  • 2
    Electronic Resource
    Electronic Resource
    Increased H2 production by immobilized microorganisms (1995)
    Springer
    World journal of microbiology and biotechnology 11 (1995), S. 156-159 
    Details
    ISSN: 1573-0972
    Keywords: Bacillus ; biogas-H ; hydrogen ; immobilization ; mixed culture ; recycling
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract Viable cells of H2-producers (Bacillus licheniformis and a mixed microbial culture) were immobilized on brick dust and in calcium alginate beads. In batch culture, cells of the mixed culture in the free state yielded 8.2 l H2/mol glucose utilized, whereasB. licheniformis evolved 13.1 l H2. Immobilized cells, however, gave 4-fold more H2 than the free bacteria. Highest yields were from the cells immobilized on brick dust. High H2-production rates continued over two rounds of re-use of the immobilized cells.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00704638
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    Paper (German National Licenses)
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