Metal accumulation by fungi: Applications in environmental biotechnology

J. M. Tobin, C. White, G. M. Gadd (Lead / Corresponding author)

    Research output: Contribution to journalArticlepeer-review

    139 Citations (Scopus)

    Abstract

    Fungi can accumulate metal and radionuclide species by physico-chemical and biological mechanisms including extracellular binding by metabolites and biopolymers, binding to specific polypeptides and metabolism-dependent accumulation. Biosorptive processes appear to have the most potential for environmental biotechnology. 'Biosorption' consists of accumulation by predominatly metabolism-independent interactions, such as adsorptive or ion-exchange processes: the biosorptive capacity of the biomass can be manipulated by a range of physical and chemical treatments. Immobilized biomass retains biosorptive properties and possesses a number of advantages for process applications. Native or immobilized biomass can be used in fixed-bed, air-lift or fluidized bed bioreactors; biosorbed metal/radionuclide species can be removed for reclamation and the biomass regenerated by simple chemical treatments.

    Original languageEnglish
    Pages (from-to)126-130
    Number of pages5
    JournalJournal of Industrial Microbiology
    Volume13
    Issue number2
    DOIs
    Publication statusPublished - 1 Mar 1994

    Keywords

    • Biosorption
    • Fungi
    • Immobilized biosorbent
    • Pollution treatment
    • Toxic metals

    ASJC Scopus subject areas

    • Applied Microbiology and Biotechnology

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