Use of magnetic particles isolated from magnetotactic bacteria for enzyme immobilization

Tadashi Matsunaga, Shinji Kamiya

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We report the novel use of magnetic particles isolated from magnetotactic bacteria. Magnetotactic bacteria were collected from enriched sludge by use of a magnetic harvesting apparatus. Magnetic particles separated from magnetotactic bacteria were shown to be pure magnetite. Glucose oxidase and uricase were immobilized on magnetic particles. The activity of glucose oxidase immobilized on biogenic magnetites was 40 times that immobilized on artificial magnetites or Zn-ferrite particles. Both glucose oxidase and uricase coupled with biogenic magnetic particles retained their activities when they were reused 5 times.

Original languageEnglish
Pages (from-to)328-332
Number of pages5
JournalApplied Microbiology and Biotechnology
Issue number4
Publication statusPublished - 1987 Jul
Externally publishedYes


ASJC Scopus subject areas

  • Microbiology (medical)
  • Microbiology
  • Bioengineering
  • Biotechnology

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