Function and application of poly-.GAMMA.-glutamic acid: Proposals for polluted water treatment by applying flocculating activity of cross-linked poly-.GAMMA.-glutamic acid

DOI JASI 1 Citations 29 References

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  • ポリグルタミン酸の機能と活用
  • proposals for polluted water treatment by applying flocculating activity of cross-linked poly-γ-glutamic acid

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Cross-linked poly-γ-glutamic acid (C-L γ-PGA) markedly purified polluted water collected from rivers and ponds by flocculation and precipitation. This effect of C-L γ-PGA occasionally required pretreatment with polyaluminum chloride (PAC). Components of polluted water in rivers or ponds are generally thought to be clay minerals, microorganisms and chemical compounds. In this study, the flocculating activities of C-L γ-PGA against suspensions of bentonite, diatomaceous earth, Escherichia coli and Mycrocystis aeruginosa, and against solutions of crystal violet and bisphenol A were investigated. The mode of action of C-L γ-PGA is thought to be based on electrostatic interaction between flocculants, C-L γ-PGA and PAC, and the surface of polluted water components, which may lead to neutralization of the zetapotential of those components.

Journal

  • JSM Mycotoxins

    JSM Mycotoxins 59 (2), 83-93, 2009

    Japanese Society of Mycotoxicology

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