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The Influence of Mycotoxin to Other Fungus Growth Characteristics Based on Competition Principle

Research Project

Project/Area Number 16K14349
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Architectural environment/Equipment
Research InstitutionKogakuin University

Principal Investigator

YANAGI U  工学院大学, 建築学部(公私立大学の部局等), 教授 (50370945)

Co-Investigator(Kenkyū-buntansha) 鍵 直樹  東京工業大学, 環境・社会理工学院, 准教授 (20345383)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Keywordsカビ / 競争原理 / マイコトキシン / MVOC / 建築環境 / DNA / 室内環境 / 生育抑制 / DNA解析 / リアルタイムPCR
Outline of Final Research Achievements

In this study, the experiments on controlling the fungus growth by mycotoxin were carried out. 9 species fungi which referentially detected from living environment were used in this study. Three kinds of mycotoxin, Patulin (produced by genus Penicillium), T-2 Toxin (produced by genus Fusarium), and Sterigmatocystin (produced by genus Aspergillius), were applied. The following results were mainly obtained.
Since the appearance ratio of a colony falls remarkably compared with two kinds of other mycotoxin, if species by which growth was controlled by Sterigmatocystin is species which can be controlled by Sterigmatocystin, it will be considered that Sterigmatocystin controls growth most. Moreover, although Sterigmatocystin was strong about the degree of growth suppression, T-2 Toxin has controlled multiplication of many species. Furthermore, Rhodotorula mucilaginosa is considered to be the strong bacillus of survival in all species in the mycotoxin used in this experiment.

Academic Significance and Societal Importance of the Research Achievements

これまで筆者らが行ってきた住環境における床の堆積カビ,浸水後の床下空間表面のカビに関する調査結果では,カビ汚染が顕著になっても分離されるカビの種類が多くないという傾向が確認されている。これらの結果から,微生物の世界でも競争原理が起きているのではないかと考えられる。なお,現状ではカビ共存状態での競争原理に関する研究例は世界的に見ても皆無であり,先行研究はない。
本研究では,住環境におけるカビ汚染特性をこれまでにない手法で解析できたことから,競争原理で優位に立ったカビに対応した殺菌方法や温湿度環境の制御等による制御方法等において重要な知見が示された。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (14 results)

All 2018 2017 2016 Other

All Journal Article (7 results) (of which Peer Reviewed: 6 results) Presentation (5 results) (of which Int'l Joint Research: 3 results) Book (1 results) Remarks (1 results)

  • [Journal Article] 室内空気汚染の現状と対策2017

    • Author(s)
      柳 宇
    • Journal Title

      建築設備&昇降機

      Volume: No.126 Pages: 13-19

    • NAID

      40021143421

    • Related Report
      2017 Research-status Report
  • [Journal Article] 生活環境空気中の浮遊菌2017

    • Author(s)
      柳 宇
    • Journal Title

      化学療法の領域

      Volume: Vol.33、No.5 Pages: 67-73

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] 高齢者住居の微生物環境と健康影響2017

    • Author(s)
      柳 宇
    • Journal Title

      保健医療科学

      Volume: Vol.66、No.1 Pages: 136-140

    • NAID

      130006894398

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] 高齢者施設における微生物汚染と集団感染の実態2017

    • Author(s)
      柳 宇
    • Journal Title

      空気清浄

      Volume: Vol.55, No.1 Pages: 22-27

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] 建築物の衛生と微生物制御③ 空気調和設備の適正管理、2016

    • Author(s)
      柳 宇
    • Journal Title

      日本防菌防黴学会誌

      Volume: Vol.44,No.4 Pages: 47-54

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] 微生物から考える感染対策2016

    • Author(s)
      柳 宇
    • Journal Title

      近代建築

      Volume: Vol.70,No.11 Pages: 68-70

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] 外気中の微生物による室内微生物への影響2016

    • Author(s)
      柳 宇、加藤信介、永野秀明
    • Journal Title

      空気清浄

      Volume: Vol.54,No.4 Pages: 25-29

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Presentation] マイコトキシンと共存状態でのカビ生育に及ぼす競争原理の影響に関する基礎研究2018

    • Author(s)
      新村美月,柳 宇,鍵直樹
    • Organizer
      2018年度日本建築学会大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] The Influence of Mycotoxin to Other Fungus Growth Characteristics Based on Competition Principle2018

    • Author(s)
      Mizuki Niimura, U Yanagi, Naoki Kagi
    • Organizer
      the 8th International Conference on Energy and Environment of Residential Buildings
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The Effect of Mycotoxin to other Fungus Growth Characteristics2017

    • Author(s)
      U Yanagi1, Yuriko Shimura, Naoki Kagi
    • Organizer
      Healthy Buildings 2017 Europe
    • Place of Presentation
      Lublin, Poland
    • Year and Date
      2017-07-02
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] The Effect of Mycotoxin to other Fungus Growth Characteristics2017

    • Author(s)
      Yuriko Shimura, U Yanagi, Naoki Kagi,
    • Organizer
      Healthy Buildings 2017 Europe
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] カビ増殖特性に与える木材の含水率の影響に関する検討2017

    • Author(s)
      新村美月、柳  宇、鍵直樹、長谷川兼一、東賢一、金 勲、大澤元毅
    • Organizer
      日本建築学会大会
    • Related Report
      2017 Research-status Report
  • [Book] 有害微生物制御と管理2016

    • Author(s)
      柳 宇
    • Total Pages
      664
    • Publisher
      テクノシステム
    • Related Report
      2016 Research-status Report
  • [Remarks] 工学院大学教員 柳宇

    • URL

      http://er-web.sc.kogakuin.ac.jp/Profiles/9/0000829/profile.html

    • Related Report
      2016 Research-status Report

URL: 

Published: 2016-04-21   Modified: 2020-03-30  

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