Screening Photosynthetic Bacteria for Hydrogen Production from Organic Acids

概要

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Photosynthetic bacteria were isolated for hydrogen production from the dominant products of anaerobic fermentation, such as butyrate, acetate, and lactate.The process of screening was examined to obtain strains with high rates of hydrogen production.A procedure in which enrichment culture with nitrogen gas under illumination was followed by culture on agar plates with ammonium sulfate under aerobic and dark conditions was effective.We isolated hydrogen-producing photosynthetic bacteria from muddy water in the Tsukuba area with butyrate as a carbon source. Some strains that produced much hydrogen were found. The maximum rates per irradiated area by the immobilized cells of the selected strains were 321,253,348,and 337 μl/h/cm^2 from butyrate, acetate, lactate, and the mixture of the above organic acids, respectively, at 10 klx at 30℃.A cell weight based rate of 151 μl/h/mg (dry weight) from lactate was achieved by one strain.
社団法人日本生物工学会の論文
1986-06-25