期刊
BIOTECHNOLOGY LETTERS
卷 23, 期 18, 页码 1463-1466出版社
SPRINGER
DOI: 10.1023/A:1011664912970
关键词
anaerobic digestion; Aspergillus; Bacillus; biomethanation; hydrogen
Metabolic activities of different microorganisms (Bacillus subtilis, B. licheniformis and Aspergillus niger) and hydrolytic enzymes (concentrations: 1 to 200 mg enzyme solids g(-1) feed) were studied individually and in combinations with respect to H-2 and methane production from damaged wheat grains. Bacillus subtilis, B. licheniformis and pre-existing hydrogen producers (control) produced 45 to 64 l H-2 kg(-1) total solids and subsequently, with the help of added methanogens, 155 to 220 1 methane kg(-1) total solids could be produced. H-2 production from damaged wheat grains could be decreased to 28% or enhanced up to 152% with respect to control, by employing various microbial and enzymatic treatments. Similarly, it has been made possible to vary methane production capacities from as low as 17% to as high as 110% with respect to control.
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