Fermentative hydrogen production from kitchin garbage was examined by using the bacterium Enterobacter aerogenes strain E.82005. Fruits and vegetables were good substrates for hydrogen production. Approximately 0.51, 0.27, 0. 09 and 0.15 mmoles of hydrogen were produced from 1 g of garbages of apples, oranges, bananas and spinage, respectively. Guts of fishes. tofu, tofu refuse and egg were alternative nitrogen sources of peptone. Especialy, miso, soy sauce and soybean flour were very good substrates for hydrogen as well as good nitrogen sourcs.
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