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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2016.1
- 수록면
- 1 - 7 (7page)
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초록· 키워드
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Background: Significant increases in the bacterial resistance to various antibiotics have been found in fish farms.
Non-antibiotic therapies for infectious diseases in aquaculture are needed. In recent years, light-emitting diode technology has been applied to the inactivation of pathogens, especially those affecting humans. The purpose of this study was to assess the effect of blue light (wavelengths 405 and 465 nm) on seven major bacterial pathogens that affect fish and shellfish important in aquaculture.
Results: We successfully demonstrate inactivation activity of a 405/465-nm LED on selected bacterial pathogens.
Although some bacteria were not fully inactivated by the 465-nm light, the 405-nm light had a bactericidal effect against all seven pathogens, indicating that blue light can be effective without the addition of a photosensitizer.
Photobacterium damselae, Vibrio anguillarum, and Edwardsiella tarda were the most susceptible to the 405-nm light (36.1, 41.2, and 68.4 J cm−2, respectively, produced one log reduction in the bacterial populations), whereas Streptococcus parauberis was the least susceptible (153.8 J cm−2 per one log reduction). In general, optical density (OD) values indicated that higher bacterial densities were associated with lower inactivating efficacy, with the exception of P. damselae and Vibrio harveyi. In conclusion, growth of the bacterial fish and shellfish pathogens evaluated in this study was inactivated by exposure to either the 405- or 465-nm light. In addition, inactivation was dependent on exposure time.
Conclusions: This study presents that blue LED has potentially alternative therapy for treating fish and shellfish bacterial pathogens. It has great advantages in aspect of eco-friendly treating methods differed from antimicrobial methods.
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참고문헌 (43)
참고문헌 신청
Arrojado C / 2011 / Applicability of photodynamic antimicrobial chemotherapy as an alternative to inactivate fish pathogenic bacteria in aquaculture systems / Photochem Photobiol Sci 10:1691~1700
Ashkenazi H / 2003 / Eradication of Propionibacterium acnes by its endogenic porphyrins after illumination with high intensity blue light / FEMS Immunol Med Microbiol 35:17~24
백근욱 / 2006 / Isolation and characterization of Streptococcus sp.from diseased flounder (Paralichthys olivaceus )in Jeju Island / Journal of Veterinary Science 7(1):53~58
Barnes AC / 1996 / Effect of iron on expression of superoxide dismutase by Aeromonas salmonicida and associated resistance to superoxide anion / FEMS Microbiol Lett 142:19~26
Bostock J / 2010 / Aquaculture : global status and trends / Philos T Roy Soc B 365:2897~2912
Ashkenazi H / 2003 / Eradication of Propionibacterium acnes by its endogenic porphyrins after illumination with high intensity blue light / FEMS Immunol Med Microbiol 35:17~24
백근욱 / 2006 / Isolation and characterization of Streptococcus sp.from diseased flounder (Paralichthys olivaceus )in Jeju Island / Journal of Veterinary Science 7(1):53~58
Barnes AC / 1996 / Effect of iron on expression of superoxide dismutase by Aeromonas salmonicida and associated resistance to superoxide anion / FEMS Microbiol Lett 142:19~26
Bostock J / 2010 / Aquaculture : global status and trends / Philos T Roy Soc B 365:2897~2912
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