Continuous acetic acid production by the bioreactor system loading a new ceramic carrier for microbial attachment |
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Authors: | Masaaki Sueki Noritaka Kobayashi Akira Suzuki |
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Institution: | (1) Kirin Brewery, 17-1, Namamugi, 1-chome, Tsurumi-ku, 230 Yokohama, Japan |
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Abstract: | Summary We have developed a bioreactor system for aerobic fermentation, using a new ceramic carrier APHROCELL which has a suitable shape for liquid and gas passage. In acetic acid fermentation byAcetobacter cells from ethanol, as a typical example of aerobic fermentation, a productivity of 17.25 g/l h was attained at continuous production of 23 g-acetic acid/l; at an acetic acid concentration around 53 g/l, the productivity was 6.4 g/l h. Thus a marketable vinegar can be obtained continuously by this bioreactor system. Because of the simplicity of the APHROCELL reactor, scale up should be relatively easy. |
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