Biodegradation of Malachite Green in Milkfish Pond Sediments

Chu-Wen Yang, Wei-Liang Chao, Chi-Yen Hsieh and Bea-Ven Chang
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Chu-Wen Yang: Department of Microbiology, Soochow University, Taipei 11101, Taiwan
Wei-Liang Chao: Department of Microbiology, Soochow University, Taipei 11101, Taiwan
Chi-Yen Hsieh: Department of Microbiology, Soochow University, Taipei 11101, Taiwan
Bea-Ven Chang: Department of Microbiology, Soochow University, Taipei 11101, Taiwan

Sustainability, 2019, vol. 11, issue 15, 1-16

Abstract: Malachite green (MG) is usually applied as a biocide in aquaculture worldwide. The microbial degradation of MG and changes in the microbial community composition of milkfish ( Chanos chanos ) culture pond sediments were assessed in this study. Three MG-degrading bacteria strains—M6, M10, and M12—were isolated, identified, and characterized. Strains M6, M10, and M12 are closely related to Zhouia amylolytica, Tenacibaculum mesophilum , and Enterobacter cloacae, respectively. The bacterial strains M10 and M12 showed good ability to degrade MG in the sediment. The MG degradation rate was increased after adding MG three more times. The microbial community in the sediment changes with different treatments. The bacterial strains M10 and M12 provide a potential solution for the treatment of sediment of saline aquaculture ponds with MG contamination.

Keywords: malachite green; milkfish pond sediment; biodegradation (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2019
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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