Microbiology and Biotechnology Letters (한국미생물·생명공학회지)

The Korean Society for Microbiology and Biotechnology (한국미생물·생명공학회)
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Bioflocculant and Anticorrosive Activities of the Biopolymer Produced by Lysinibacillus macroides

  • Received : 2023.08.22
  • Accepted : 2023.09.19
  • Published : 2023.12.28
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Abstract

The biopolymer produced by Lysinibacillus macroides can be useful as an emulsifying agent, flocculating agent, anti-oxidative agent, and anti-corrosive agent. The present work focused on the functional activities of this biopolymer such as bioflocculant and anti-corrosion. The results of the study for the biopolymer as a bioflocculating agent reveal that the biopolymer gave 72.3% flocculating activity against activated carbon at a concentration of 5 mg/l. In the optimization study, the highest bioflocculant activity was obtained in the presence of CaCl2 mineral at 15% biopolymer concentration, 7.0 pH, and 40℃ temperature. The biopolymer was also studied for its anti-corrosive nature and observed that it was able to prevent corrosion of steel paper clips in a 6% CaCl2 solution at a concentration of 0.5% after 7 days.

Keywords

Acknowledgement

The authors are thankful to excel industries limited for providing a laboratory facility for research work and financial support.

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