Study on biodegradation process of polyethylene glycol with exponential glowth of microbial population

Masaji Watanabe, Fusako Kawai

    Research output: Chapter in Book/Report/Conference proceedingChapter

    2 Citations (Scopus)


    Biodegradation of polyethylene glycol is studied mathematically. A mathematical model for depolymerization process of exogenous type is described. When a degradation rate is a product of a time factor and a molecular factor, a time dependent model can be transformed into a time independent model, and techniques developed in previous studies can be applied to the time independent model to determine the molecular factor. The time factor can be determined assuming the exponential growth of the microbial population. Those techniques are described, and numerical results are presented. A comparison between a numerical result and an experimental result shows that the mathematical method is appropriate for practical applications.

    Original languageEnglish
    Title of host publicationBiomedical Engineering Systems and Technologies
    Subtitle of host publicationInternational Joint Conference, BIOSTEC 2009 Porto, Portugal, January 14-17, 2009, Revised Selected Papers
    EditorsAna Fred, Hugo Gamboa, Joaquim Filipe
    Number of pages13
    Publication statusPublished - Apr 8 2010

    Publication series

    NameCommunications in Computer and Information Science
    ISSN (Print)1865-0929


    • Biodegradation
    • Mathematical modeling
    • Numerical simulation
    • Polyethylene Glycol

    ASJC Scopus subject areas

    • Computer Science(all)
    • Mathematics(all)


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