The Journal of General and Applied Microbiology
Online ISSN : 1349-8037
Print ISSN : 0022-1260
ISSN-L : 0022-1260
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Characterization of alcohol oxidase from Aspergillus ochraceus AIU 031
Kimiyasu IsobeAyako KatoJun OgawaMichihiko KataokaAkira IwasakiJunzo HasegawaSakayu Shimizu
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2007 Volume 53 Issue 3 Pages 177-183


An alcohol oxidase (AOD) was found from Aspergillus ochraceus AIU 031, and its characteristics were revealed. This enzyme oxidized short-chain primary alcohols and ethylene glycol, and belonged to the same group as AOD from methylotrophic yeast. However, it differed in the following properties. The Km value for ethanol was larger and that for ethylene glycol was smaller than those of AODs derived from methylotrophic yeasts. The ethanol oxidation was optimal at pH 5–7 and 50–55°C. The molecular mass of this enzyme was 262 kDa and consisted of four identical subunits of 68 kDa, which were much smaller than those of methylotrophic yeasts.

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© 2007 by The Applied Microbiology, Molecular and Cellular Biosciences Research Foundation
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