Abstract
In this study, we developed a rapid and sensitive enzymatic assay for 2,3-butanediol (2,3-BDO) detection. The concentration of 2,3-BDO was determined by measuring the reduction of NADP+ using Clostridium ljungdahlii 2,3-butanediol dehydrogenase (CL-Bdh). The enzymatic assay could detect as low as 0.01 mM of 2,3-BDO, while the high-performance liquid chromatography (HPLC) method required a much higher concentration than 0.15 mM. Gratifyingly, the developed method was 15 times more sensitive than the HPLC method. When the enzymatic assay was applied to high-throughput screening, the enzymatic assay detected 14 positive samples out of 23 tested, as compared to 8 by the HPLC method. These results suggest that the enzymatic assay is an effective screening method for the detection of 2,3-BDO-producing microbes in a microtiter plate-based format.
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Acknowledgements
This work was supported by the KIOST In-house Program (PE99722) and the understanding the deep-sea biosphere on seafloor hydrothermal vents in the Indian Ridge Program (20170411) of the Ministry of Ocean and Fisheries of the Republic of Korea.
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Lee, G.B., Kim, Y.J., Lim, J.K. et al. A rapid and sensitive enzymatic assay for 2,3-butanediol. 3 Biotech 9, 170 (2019). https://doi.org/10.1007/s13205-019-1705-9
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DOI: https://doi.org/10.1007/s13205-019-1705-9