UVA-LED device to disinfect hydroponic nutrient solution

書誌事項

タイトル
UVA-LED device to disinfect hydroponic nutrient solution
タイトル別名
  • UVA-LEDを用いた水耕栽培養液殺菌
  • UVA-LED disinfect hydroponic solution
著者
常冨, 愛香里
著者別名
  • ツネドミ, アカリ
  • Tsunedomi, Akari
著者
宮脇, 克行
著者別名
  • ミヤワキ, カツユキ
  • Miyawaki, Katsuyuki
著者
マサムラ, アキノリ
著者別名
  • Masamura, Akinori
著者
(中橋)粟飯原, 睦美
著者別名
  • (ナカハシ)アイハラ, ムツミ
  • Nakahashi-Aihara, Mutsumi
著者
馬渡, 一諭
著者別名
  • マワタリ, カズアキ
  • Mawatari, Kazuaki
著者
下畑, 隆明
著者別名
  • シモハタ, タカアキ
  • Shimohata, Takaaki
著者
上番増, 喬
著者別名
  • ウエバンソウ, タカシ
  • Uebansou, Takashi
著者
木内, 陽介
著者別名
  • キノウチ, ヨウスケ
  • Kinouchi, Yohsuke
著者
芥川, 正武
著者別名
  • アクタガワ, マサタケ
  • Akutagawa, Masatake
著者
榎本, 崇宏
著者別名
  • エモト, タカヒロ
  • Emoto, Takahiro
著者
髙橋, 章
著者別名
  • タカハシ, アキラ
  • Takahashi, Akira
学位授与大学
徳島大学
取得学位
博士(栄養学)
学位授与番号
甲栄第258号
学位授与年月日
2018-03-23

説明

The number of plant factories in which crops are cultivated in an artificial environment has been increasing every year. In cultivation techniques involving hydroponics, plants are supplied with a circulating nutrient solution, which can become contaminated by pathogens that can propagate and spread throughout plant factories. Therefore, strategies to disinfect hydroponic nutrient solutions are needed. In this study, we developed a new disinfection device equipped with an ultraviolet A (UVA) light emitting diode (LED) that can be used to disinfect hydroponic nutrient solutions in plant factories. We first evaluated the basic disinfection capability of the device and then estimated its bactericidal effect in a small scale model system. The log survival ratio was related to UVA irradiation fluence and the volume of nutrient solution. From the assay results, we devised a kinetics equation to describe the relationship between nutrient solution volume, log survival ratio, and UVA fluence. Together our results show that UVA irradiation could be used to disinfect hydroponic nutrient solutions, and the derived kinetics equations can be used to determine optimal conditions, such as nutrient solution volume, UVA irradiation, and killing activity, to develop devices that disinfect hydroponic nutrient solutions.

目次

2019-09-06 再収集

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