Stably Sustained Hydrogen Production with High Molar Yield through a Combination of a Marine Green Alga and a Photosynthetic Bacterium.
Stably sustained continuous production of hydrogen with high molar yield was achieved through a combination of dark fermentative hydrogen evolution by Chlamydomonas sp. strain MGA161 and hydrogen photoevolution by a marine photosynthetic bacterium W-1S in an alternating light-dark cycle as a model of the day-night cycle. The newly isolated strain W-1S could use acetic acid and ethanol excreted by strain MGA161 as electron donors for hydrogen photoevolution. The fermentation broth of strain MGA161 stimulated the hydrogen photoproduction of strain W-1S. This alga-bacterial combination had a high conversion yield of 8 mol H2/mol of glucose of starch, with the possibility of improvement up to 10.5.
a Faculty of Pharmaceutical Sciences , Osaka University , Suita , Osaka 565 , Japan.
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Y
Miura
a Faculty of Pharmaceutical Sciences , Osaka University , Suita , Osaka 565 , Japan.
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C
Saitoh
a Faculty of Pharmaceutical Sciences , Osaka University , Suita , Osaka 565 , Japan.
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Matsuoka
a Faculty of Pharmaceutical Sciences , Osaka University , Suita , Osaka 565 , Japan.
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Miyamoto