Genotoxicity of Microbial Volatile Organic Compounds

  • Nakajima Daisuke
    Research Center for Material Cycles and Waste Management, National Institute for Environmental Studies
  • Ishii Ruri
    Research Center for Material Cycles and Waste Management, National Institute for Environmental Studies
  • Kageyama Shiho
    Research Center for Material Cycles and Waste Management, National Institute for Environmental Studies
  • Onji Yoshiki
    Air Environment Division, Nara Prefectural Institute for Hygiene and Environment
  • Mineki Shigeru
    Faculty of Science and Technology, Tokyo University of Science
  • Morooka Nobuhisa
    Faculty of Home Economics, Koriyama Women's University
  • Takatori Kosuke
    Division of Microbiology, National Institute of Health Sciences
  • Goto Sumio
    Research Center for Material Cycles and Waste Management, National Institute for Environmental Studies

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Abstract

Luminescent and light absorption umu tests were used to investigate the genotoxicity of microbial volatile organic compounds (MVOCs), which have been reported to occur in conjunction with the growth of filamentous fungi. Investigation of 20 types of MVOC samples confirmed the SOS-inducing activity of 1-octen-3-ol, 2-methyl-1-propanol, 2-heptanone, 3-octanol, 1-pentanol, 1-butanol, 2-methyl-1-butanol, 3-methyl-1-butanol, 3-methyl-2-butanol, 3-octanone, 2-hexanone, 2-butanone, 3-methyl-2-butanone, 2-pentanol, ethyl isobutyrate, and terpinen-4-ol. Of these materials, 3-methyl-2-butanone and 3-methyl-2-butanol, which were positive in both the luminescent and light absorption umu tests, were clearly shown also to be mutagenic based on the results of the Ames test. Each of these 20 MVOCs is known to be produced by microorganisms commonly detected in indoor environments, and long-term exposure could be a health hazard. <br>

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