Studies on the inhibition of methanogenesis and dechlorination by (4-hydroxyphenyl) chloromethanesulfonate |
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Authors: | Yudai Hotta Chizu Yagoshi Ryo Okazaki Mitsumasa Ikeda |
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Institution: | 1.Life Science Research Institute, Kumiai Chemical Industry Co. Ltd., Tamari, Kakegawa, Shizuoka 436–0011, Japan |
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Abstract: | The purpose of this study was to demonstrate the inhibitory effect of chemicals on methane emissions in paddy soil. We found that (4-hydroxyphenyl) chloromethanesulfonate (C-1) has a methanogenic inhibition activity, and we studied its inhibition mechanism using laboratory tests. The study found that C-1 treatment of flooded soil did not significantly affect the bacterial community but rather the archaeal community; particularly, Methanosarcina spp. C-1 strongly inhibited the aceticlastic methanogenesis route. It was suggested that the inhibitory target of C-1 was different from the well-known methanogenic inhibitor 2-bromoethanesulfonate, which targets methyl-coenzyme M reductase of methanogen. In addition, C-1 had a secondary effect of inhibiting the dechlorination of chlorophenols. Although field trials are required as the next development step, C-1 can be used to reduce methane emissions from paddy fields, one of the largest sources in the agricultural sector. |
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Keywords: | (4-hydroxyphenyl) chloromethanesulfonate 2-bromoethanesulfonate methanogenic inhibitor methanogenesis dechlorination dichlorophenol |
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