Thermophilic biodesulfurization of dibenzothiophene and its derivatives by Mycobacterium phlei WU-F1

Toshiki Furuya, Kotaro Kirimura, Kuniki Kino, Shoji Usami

    Research output: Contribution to journalArticle

    67 Citations (Scopus)

    Abstract

    Dibenzothiophene (DBT) derivatives can be detected in diesel oil following hydrodesulfurization treatment, and they are widely recognized as target compounds for more efficient desulfurization. The moderately thermophilic bacterium Mycobacterium phlei WU-F1 was isolated for its ability to grow at 50°C in a medium with DBT as the sole source of sulfur. At 50°C, resting cells of WU-F1 degraded 0.81 mM DBT within only 90 min to produce 2-hydroxybiphenyl as a desulfurized metabolite through the selective cleavage of carbon-sulfur bonds, and also degraded 0.81 mM of derivatives such as 2,8-dimethylDBT, 4,6-dimethylDBT and 3,4-benzoDBT within 8 h. In addition, the resting cells exhibited high DBT-desulfurizing ability over a wide temperature range from 20 to 50°C. Because M. phlei WU-F1 possesses higher desulfurizing ability toward DBT and the derivatives over a wider temperature range than any other microorganisms previously reported, it may have useful practical applications for biodesulfurization.

    Original languageEnglish
    Pages (from-to)129-133
    Number of pages5
    JournalFEMS Microbiology Letters
    Volume204
    Issue number1
    DOIs
    Publication statusPublished - 2001 Oct 16

    Fingerprint

    Mycobacterium phlei
    Sulfur
    Temperature
    Oils
    Carbon
    dibenzothiophene
    Bacteria

    Keywords

    • Carbon-sulfur bond cleavage
    • Desulfurization
    • Dibenzothiophene
    • Mycobacterium phlei
    • Petroleum

    ASJC Scopus subject areas

    • Genetics
    • Molecular Biology
    • Applied Microbiology and Biotechnology
    • Microbiology

    Cite this

    Thermophilic biodesulfurization of dibenzothiophene and its derivatives by Mycobacterium phlei WU-F1. / Furuya, Toshiki; Kirimura, Kotaro; Kino, Kuniki; Usami, Shoji.

    In: FEMS Microbiology Letters, Vol. 204, No. 1, 16.10.2001, p. 129-133.

    Research output: Contribution to journalArticle

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