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http://dx.doi.org/10.5762/KAIS.2021.22.1.431

Development of Marine Virus-like Particles Live/Dead Determination Method for the Performance Evaluation of Ballast Water Treatment System  

Hyun, Bonggil (Ballast Water Research Center, Korea Institute of Ocean Science and Technology)
Woo, Joo-Eun (Ballast Water Research Center, Korea Institute of Ocean Science and Technology)
Jang, Pung-Guk (Ballast Water Research Center, Korea Institute of Ocean Science and Technology)
Jang, Min-Chul (Ballast Water Research Center, Korea Institute of Ocean Science and Technology)
Lee, Woo-Jin (Ballast Water Research Center, Korea Institute of Ocean Science and Technology)
Bae, Mi-Kyung (Ballast Water Research Center, Korea Institute of Ocean Science and Technology)
Shin, Kyoungsoon (Ballast Water Research Center, Korea Institute of Ocean Science and Technology)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.22, no.1, 2021 , pp. 431-438 More about this Journal
Abstract
To prepare more stringent regulations for USCG Phase II ballast water management, this study investigated the staining efficiency of SYBR Green I(SGI) and SYBR Gold(SG) on the virus-like particle (VLP). A dye with high staining efficiency was applied to the treated water that was passed through the ballast water treatment system (BWTS). VLP staining was observed most clearly under the 100-fold and 200-fold dilution of the stock solution when the volume of filtered samples was 0.5 mL to 2 mL. The staining efficiency of SGI and SG did not show a significant difference. On the other hand, the green fluorescence of viruses in the sample stained with SGI was more pronounced than in the samples stained with SG (expressed yellow fluorescence), making it easier to observe. The abundance of VLP in the test water and control water treatments that did not pass through the two types of BWTS (electrolysis type, UV + electrolysis type) was approximately 109 - 1010 VLP 100 mL-1. In contrast, no stained VLP was observed in the treated water treatments. Moreover, SGI was confirmed to be effectively stained under various salinity conditions, including seawater, brackish water, and freshwater. Further verification tests and development of staining methods under various BWTS are required, but the SGI staining method is believed to be a good alternative to the VLP live/dead determination of the USCG Phase II type approval test.
Keywords
USCG Phase II; BWTS; Virus-like particle; SYBR Green I; SYBR Gold;
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