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Preservation technique of fresh fruit and vegetables by using plasma technology for export

Research Project

Project/Area Number 16H05005
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Agricultural environmental engineering/Agricultural information engineering
Research InstitutionKyushu University

Principal Investigator

Uchino Toshitaka  九州大学, 農学研究院, 特任教授 (70134393)

Co-Investigator(Kenkyū-buntansha) 高木 浩一  岩手大学, 理工学部, 教授 (00216615)
田中 史彦  九州大学, 農学研究院, 教授 (30284912)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000)
Fiscal Year 2018: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2017: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2016: ¥10,920,000 (Direct Cost: ¥8,400,000、Indirect Cost: ¥2,520,000)
Keywords農業工学 / 農林水産物 / プラズマ / 高電圧 / 青果物輸出 / エチレン分解 / 殺菌 / 加湿
Outline of Final Research Achievements

To export fresh fruit and vegetables in large quantities, a new preservation technique using plasma was studied. Firstly, a dielectric barrier discharge reactor was produced and its performance was tested. Next, a viable count of airborne bacteria exposed to plasma at 5kV of applied voltage decreased by more than 90% when air flow rate was 1L/min. Moreover, ethylene was decomposed by using the reactor and the efficiency of decomposition was calculated and evaluated. Ethylene concentration in a practical storage was successfully predicted based on the relationship between volume of small size chamber and reaction rate constant of ethylene decomposition. In addition, an effective stacking pattern for ethylene decomposition was proposed by CFD analysis. Finally, relative humidity in a 216L chamber increased by ca. 40% in 30 min by humidifying using an electrostatic atomizer developed.

Academic Significance and Societal Importance of the Research Achievements

高電圧・プラズマを用い、青果物鮮度保持のためのエチレン分解、殺菌、加湿に応用する技術の確立を目指した。エチレン分解ではプラズマと紫外線照射の併用により分解効率が向上することを見出し、また、殺菌試験では原子状酸素とオゾンの殺菌への関わりを明らかにするなど学術的な意義は大きい。
これらの技術により青果物は長期間の鮮度保持を可能にすることが期待され、農産物・食品の輸出に力点が置かれている現在において、腐敗・変敗が起こりやすい青果物の船舶による大量輸送に貢献可能な研究である。

Report

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

    (9 results)

All 2018 2017

All Presentation (9 results) (of which Invited: 4 results)

  • [Presentation] 誘電体バリア放電による青果物由来エチレン分解効率の検討2018

    • Author(s)
      平山彪悟,神原洋介,内野敏剛,田中史彦,塚﨑守啓,高木浩一,高橋克幸
    • Organizer
      第72回農業食料工学会九州支部例会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 日本産農産物の海外輸出に対応した技術開発の現在2018

    • Author(s)
      内野敏剛
    • Organizer
      鹿児島大学食品技術研究会 第15回セミナー
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] コロナ放電による青果物由来エチレンの分解2018

    • Author(s)
      神原洋介,平山彪悟,内野敏剛,田中史彦,高木浩一,高橋克幸,塚﨑守啓
    • Organizer
      農業環境工学関連5学会2018年合同大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] DBDを用いた空中浮遊菌の殺菌2018

    • Author(s)
      髙間翠,内野敏剛,田中史彦
    • Organizer
      農業環境工学関連5学会2018年合同大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 農業における高電圧・プラズマ利用のこれまで2017

    • Author(s)
      内野敏剛
    • Organizer
      第78回応用物理学会秋季講演会
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] コロナ放電による青果物由来エチレンの分解2017

    • Author(s)
      神原洋介,内野敏剛,田中史彦,高木浩一,高橋克幸,塚﨑守啓
    • Organizer
      2017年度農業施設学会大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] プラズマを用いた空中浮遊菌の殺菌2017

    • Author(s)
      高間翠,清原正光,内野敏剛,田中史彦
    • Organizer
      2017年度農業施設学会大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 農産物の物理的殺菌と品質保持技術2017

    • Author(s)
      内野敏剛
    • Organizer
      平成29年度44回防菌防黴学会年次大会
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] 農産物大量輸出のための高度品質保持技術2017

    • Author(s)
      内野敏剛
    • Organizer
      第33回日本農業工学会シンポジウム
    • Related Report
      2017 Annual Research Report
    • Invited

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

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