紫外发光二极管(UV-LED)对柑桔细菌性溃疡病的杀菌效果研究

IF 0.9 4区 农林科学 Q4 BIOTECHNOLOGY & APPLIED MICROBIOLOGY
Akihiro Suzuki, Akira Emoto, Akihiro Shirai, Kentaro Nagamatsu
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引用次数: 3

摘要

一种特殊风味的柑橘类水果,产自日本,出口到世界各国。但是,由于在欧洲没有发现柑橘细菌性溃疡病(CBC)的粘附性,因此需要使用次氯酸钠水溶液进行消毒。由于灭菌费时,需要更有效的去污技术。因此,期望一种使用紫外线照射的去污方法。特别是,使用发光二极管(led)与紫外光在能耗、寿命和紧凑性方面具有许多优点,尽管合适的方法尚未建立。在本研究中,我们利用6种UV-LED(265、280、285、300、310和365 nm)对培养皿中CBC的杀菌能力来评估UV-LED去污的基本效果。对于每次辐照,所产生的杀菌能力(BAs)进行了精确评估,考虑到其光学吸收的差异。此外,还估计了单位光子数的BA,作为BA的基本波长依赖性。结果表明,波长相对较短的UV-LED照射的有效性得到了明显的证明。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Ultraviolet Light-Emitting Diode (UV-LED) Sterilization of Citrus Bacterial Canker Disease Targeted for Effective Decontamination of Citrus Sudachi Fruit.

A kind of citrus fruit with special flavor, Citrus sudachi harvested in Japan, are exported to various countries. However, the Citrus sudachi needs to be sterilized using aqueous solution of sodium hypochlorite because there is a possibility of the adhesion of citrus bacterial canker (CBC) which is not found in Europe. Due to the sterilization with time-consuming work, a more effective decontamination technique is required. A decontamination method using ultraviolet (UV) light irradiation is thus anticipated. Especially, the use of light emitting diodes (LEDs) wi UV light has many advantages in terms of energy consumption, lifetime, and compactness; although an appropriate method is yet to be established. In this study, we evaluate the fundamental effectiveness of UV-LED decontamination on the basis of the bactericidal ability on CBC in petri dishes, using six kinds of UV-LEDs (265, 280, 285, 300, 310, and 365 nm) . For each irradiation, the resultant bactericidal abilities (BAs) were evaluated precisely taking into account the differences in their optical absorptions. In addition, BAs per unit photon number were also estimated, as a fundamental wavelength-dependence of BA. As a result, the effectiveness of UV-LED irradiation with relatively short wavelengths was demonstrated clearly.

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来源期刊
Biocontrol science
Biocontrol science BIOTECHNOLOGY & APPLIED MICROBIOLOGY-
CiteScore
2.60
自引率
8.30%
发文量
21
审稿时长
>12 weeks
期刊介绍: The Biocontrol Science provides a medium for the publication of original articles, concise notes, and review articles on all aspects of science and technology of biocontrol.
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