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Effect of supply gas type and concentration on maintaining freshness of agricultural products by atmospheric low temperature plasma

Research Project

Project/Area Number 21K05845
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 41040:Agricultural environmental engineering and agricultural information engineering-related
Research InstitutionThe University of Tokyo

Principal Investigator

ARAKI TETSUYA  東京大学, 大学院農学生命科学研究科(農学部), 准教授 (40420228)

Co-Investigator(Kenkyū-buntansha) 根井 大介  国立研究開発法人農業・食品産業技術総合研究機構, 食品研究部門, 上級研究員 (70466001)
五月女 格  東京大学, 大学院農学生命科学研究科(農学部), 准教授 (90469833)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2023: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2022: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2021: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords大気圧低温プラズマ / 農産物 / 供給ガス / 電子スピン共鳴分光法 / 抗菌活性 / 鮮度保持
Outline of Research at the Start

供給ガスの種類および濃度を変化させて生成されたマルチガスプラズマバブル水の物理化学的特性について検討するとともに、大気圧低温プラズマ照射装置の操作条件およびサンプルサイズの差異が処理効果に及ぼす影響を定量化するための実験的研究を実施する。また、プラズマ処理効果が発現するサンプルサイズの上限を特定するとともに、供給ガスの種類と濃度を変化させたときのプラズマ処理効果の発現が線形であるか非線形であるかを検討する。

Outline of Final Research Achievements

A series of experimental investigations on the basic conditions necessary for plasma activated water produced by a non-thermal atmospheric pressure plasma jet to function as an effective sanitation technology for fresh produce indicated that oxygen should be selected as the supply gas and the desirable operations conditions of plasma bubbling was 8 L/min in the flow rate and 3-5 min in the reaction time. In addition, both treatment with plasma activated water and direct plasma bubbling treatment had no significant impact on radical scavenging ability of the lettuce sample after treatment.

Academic Significance and Societal Importance of the Research Achievements

青果物処理施設における青果物の運搬手段として水を用いる従来のハイドロハンドリングシステムにおける塩素および熱処理によるサニテーション、とりわけ塩素洗浄が人間の健康と環境に及ぼす潜在的な影響が懸念されることへの対応策として、新たな代替技術としての非加熱処理法の一つである大気圧低温プラズマ処理において用いられるプラズマ活性水の生成に必要となる供給ガスの処理条件がプラズマ活性水の物理化学的特性および青果物の鮮度保持効果に及ぼす影響を実験的に解明している。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (6 results)

All 2023 2022

All Journal Article (2 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 2 results) Presentation (4 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Characterization of a non-thermal plasma-bubbling system as a novel sanitizer: physicochemical properties, bactericidal effect, and reactive species2023

    • Author(s)
      Amalia Ghaisani KOMARUDIN, Daisuke NEI, Hiromi KAMEYA, Itaru SOTOME, and Tetsuya ARAKI
    • Journal Title

      Food Science and Technology Research

      Volume: 29 Issue: 5 Pages: 365-376

    • DOI

      10.3136/fstr.FSTR-D-23-00011

    • ISSN
      1344-6606, 1881-3984
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Development of non-contact strawberry quality evaluation system using visible–near infrared spectroscopy: optimization of texture qualities prediction model2022

    • Author(s)
      Naufal Shidqi Rabbani, Kazunari Miyashita, Tetsuya Araki
    • Journal Title

      Food Science and Technology Research

      Volume: 28 Issue: 6 Pages: 441-452

    • DOI

      10.3136/fstr.FSTR-D-22-00083

    • ISSN
      1344-6606, 1881-3984
    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Non-thermal plasma-bubbling system for food decontamination: Identification of reactive species and its bactericidal effect on iceberg lettuce2023

    • Author(s)
      Amalia Ghaisani Komarudin, Itaru Sotome, Tetsuya Araki
    • Organizer
      25th International Symposium on Plasma Chemistry
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Inactivation of E. coli O157:H7 on Iceberg Lettuce by Non-Thermal Plasma Bubbling System2023

    • Author(s)
      Amalia Ghaisani Komarudin, Itaru Sotome, Tetsuya Araki
    • Organizer
      International Association for Food Protection (IAFP). Toronto, Canada
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Evaluation of plasma-activated water (PAW) produced by nonthermal plasma-bubbling system as a novel food sanitizer2022

    • Author(s)
      Amalia Ghaisani Komarudin, Daisuke Nei, Hiromi Kameya, Itaru Sotome, Tetsuya Araki
    • Organizer
      日本食品科学工学会年次大会
    • Related Report
      2022 Research-status Report
  • [Presentation] Nonthermal atmospheric plasma (NTAP) bubbling system as a novel food disinfectant2022

    • Author(s)
      Amalia Ghaisani Komarudin, Daisuke Nei, Hiromi Kameya, Itaru Sotome, Tetsuya Araki
    • Organizer
      日本食品工学会年次大会
    • Related Report
      2022 Research-status Report

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Published: 2021-04-28   Modified: 2025-01-30  

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