Study on disinfection of airborne microorganisms in postharvest facilities

• Project/Area Number: 24580364
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Agricultural environmental engineering
• Research Institution: Iwate University
• Principal Investigator: KOIDE SHOJI 岩手大学, 農学部, 准教授 (70292175)
• Co-Investigator(Kenkyū-buntansha): TAKAKI Koichi 岩手大学, 工学部, 教授 (00216615)
• Co-Investigator(Renkei-kenkyūsha): OMOE Katsuhiko 岩手大学, 農学部, 教授 (23380177) ; YASOKAWA Daisuke 北海道立総合研究機構, 食品加工研究センター, 科長
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000); Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2012: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
• Keywords: 農産施設 / 空中浮遊菌 / 殺菌 / 浮遊微粒子 / 電気集じん / 光触媒 / 公衆衛生 / ポストハーベスト / Aspergillus niger / 紫外線殺菌 / 水分活性 / カビ / 同定 / 捕集 / 水中殺菌装置 / 損傷菌 / 農業生産管理工程

Outline of Final Research Achievements

This study aims the assessment and disinfection of airborne microorganisms in postharvest facilities. In the first, concentrations of airborne particles and the populations of airborne microorganisms in a postharvest facility were assessed and evaluated. Next, we found that the electrostatic precipitator could collect microorganisms in the air under various relative humidity. It was also found that the photocatalyst solution under UV-A irradiation decreased the microbial populations in the solution to uncountable levels. Finally, the collection and disinfection of airborne microorganisms in postharvest facilities was indicated as possible, by application of above methods.

Research Products

• [Journal Article] Study on airborne particles and airborne microorganism in a low-temperature storage facility (2014)
  • Author(s): Koide, S., Orikasa, T., Kumagai, K., Takeda, J., Uchino, T.
  • Journal Title: Proceedings of the 7th International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering (ISMAB) Volume: －
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Study on airborne particles and airborne microorganism in a low-temperature storage facility (2014)
  • Author(s): Koide, S., Orikasa, T., Kumagai, K., Takeda, J., Uchino, T.
  • Journal Title: 7th International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering (ISMAB) Volume: 印刷中
  • Peer Reviewed
• [Journal Article] ポストハーベストへの応用を目指したアパタイト被覆二酸化チタン光触媒の殺菌特性の評価 (2013)
  • Author(s): 小出章二，村田大地，折笠貴寛，武田純一
  • Journal Title: 農業食料工学会東北支部報 Volume: 60 Pages: 43-46
  • NAID: 120005461072
• [Presentation] Study on airborne particles and airborne microorganism in a low-temperature storage facility (2014)
  • Author(s): Koide, S., Orikasa, T., Kumagai, K., Takeda, J., Uchino, T.
  • Organizer: 7th International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering (ISMAB)
  • Place of Presentation: Yilan, Taiwan
  • Year and Date: 2014-05-22
• [Presentation] 農産施設空間内の空中浮遊物質および空中浮遊菌に関する研究 (2013)
  • Author(s): 小出章二，熊谷 翔，折笠貴寛，伊吹竜太，武田純一
  • Organizer: 平成25年度農業機械学会東北支部大会
  • Place of Presentation: 福島県農業総合センター
• [Presentation] 光触媒溶液を用いた水中殺菌に関する基礎的研究 (2012)
  • Author(s): 村田大地，小出章二，折笠貴寛，只野嘉人，熊谷 翔
  • Organizer: 平成24年度農業機械学会東北支部大会
  • Place of Presentation: 宮城大学食産業学部（宮城県）
• [Presentation] アパタイト被覆二酸化チタン光触媒殺菌の基礎的特性の解明と，そのポストハーベストへの応用 (2012)
  • Author(s): 村田大地，小出章二，折笠貴寛，内野敏剛
  • Organizer: 農業環境工学関連学会2012年合同大会
  • Place of Presentation: 宇都宮大学（栃木県）
• [Book] 静電気を利用した空中浮遊菌の除去，「パルスパワーおよび放電の農水系利用」 (2015)
  • Author(s): 小出章二
  • Total Pages: 71
  • Publisher: 電気学会技術報告, パルスパワーおよび放電の農水系利用調査専門委員会編