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. 1995 Dec;61(12):4362-6.
doi: 10.1128/aem.61.12.4362-4366.1995.

Sulfur-specific microbial desulfurization of sterically hindered analogs of dibenzothiophene

M K Lee, J D Senius, M J Grossman

Sulfur-specific microbial desulfurization of sterically hindered analogs of dibenzothiophene

M K Lee et al. Appl Environ Microbiol. 1995 Dec.

Abstract

Dibenzothiophenes (DBTs) bearing alkyl substitutions adjacent to the sulfur atom, such as 4,6-diethyldibenzothiophene (4,6-DEDBT), are referred to as sterically hindered with regard to access to the sulfur moiety. By using enrichment cultures with 4,6-DEDBT as the sole sulfur source, bacterial isolates which selectively remove sulfur from sterically hindered DBTs were obtained. The isolates were tentatively identified as Arthrobacter species. 4,6-DEDBT sulfone was shown to be an intermediate in the 4,6-DEDBT desulfurization pathway, and 2-hydroxy-3,3(prm1)-diethylbiphenyl (HDEBP) was identified as the sulfur-free end product.

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References

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