Biodesulfurization of refractory sulfur compounds in petro-diesel by a novel hydrocarbon tolerable strainPaenibacillus glucanolyticusHN4

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dc.authoridEl-Gendy, Nour/0000-0002-5154-7124
dc.authoridNassar, Hussein/0000-0003-0142-4924
dc.contributor.authorNassar, Hussein N.
dc.contributor.authorAbu Amr, Salem S.
dc.contributor.authorEl-Gendy, Nour Sh
dc.date.accessioned2024-09-29T15:51:26Z
dc.date.available2024-09-29T15:51:26Z
dc.date.issued2021
dc.departmentKarabük Üniversitesien_US
dc.description.abstractOne of the main precursors of air pollution and acid rains is the presence of the recalcitrant thiophenic compounds, for example dibenzothiophene (DBT) and its derivatives in transportation fuels. In an attempt to achieve the worldwide regulations of ultra-low sulfur transportation fuels without affecting its hydrocarbon skeleton, a biphasic medium containing 100 mg/L DBT dissolved in n-hexadecane (1/4 oil/water v/v) used for enrichment and isolation of selective biodesulfurizing bacterium from an oil-polluted sediment sample collected from Egyptian Red Sea shoreline. The isolated bacterium is facultative anaerobe, motile, spore-former, and mesophile. It is genetically identified asPaenibacillus glucanolyticusstrain HN4 (NCBI Gene Bank Accession No. MT645230). HN4 desulfurized DBT as a model of the recalcitrant thiophenic compounds without affecting its hydrocarbon skeleton via the 4S-pathway producing 2-hydroxybiphenyl (2-HBP) as a dead end product. HN4 substantiated to be a hydrocarbon tolerant, biosurfactants(s) producer, and endorsed unique enzymatic system capable of desulfurizing broad range of thiophenic compounds and expressed an efficient desulfurization activity against the recalcitrant alkylated DBTs. As far our knowledge, it is the first reported BDS study usingP. glucanolyticus. Statistical optimization based on One-Factor-At-A-Time (OFAT) technique and response surface methodology (RSM) applied for elucidation of mathematical model correlations describing and optimizing the effect of different physicochemical parameters on batch biphasic BDS process. That illustrated an approximate increase in BDS efficiency by 1.34 fold and recorded 94% sulfur removal in biphasic batch process at optimum operation conditions of 120 h, 0.14 wt% S-content model oil (DBT dissolved in n-hexadecane), 33.5 degrees C, pH7 and 1/1 oil/water phase ratio, and 147 rpm. Resting cells of HN4 in a biphasic reactor (1/1 v/v) decreased the sulfur content of a refractory thiophenic model oil (thiophene, benzothiophene, DBT, and alkylated DBT dissolved in n-hexadecane) from 0.14 to 0.027 wt%, and petro-diesel from 0.2 to 0.04 wt%, within 120 h, keeping the calorific value of the treated fuel intact. Consequently, that novel strain could be recommended as a promising candidate for BDS as complementary to hydrodesulfurization process in oil refinery.en_US
dc.identifier.doi10.1007/s11356-020-11090-7
dc.identifier.endpage8116en_US
dc.identifier.issn0944-1344
dc.identifier.issn1614-7499
dc.identifier.issue7en_US
dc.identifier.pmid33048293en_US
dc.identifier.scopus2-s2.0-85092480090en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage8102en_US
dc.identifier.urihttps://doi.org/10.1007/s11356-020-11090-7
dc.identifier.urihttps://hdl.handle.net/20.500.14619/4076
dc.identifier.volume28en_US
dc.identifier.wosWOS:000578113100005en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherSpringer Heidelbergen_US
dc.relation.ispartofEnvironmental Science and Pollution Researchen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectSelective biocatalytic desulfurizationen_US
dc.subjectDibenzothiopheneen_US
dc.subjectTwo-phase systemen_US
dc.subjectOil toleranceen_US
dc.subjectBiosurfactants produceren_US
dc.subjectModel and real feed oilen_US
dc.titleBiodesulfurization of refractory sulfur compounds in petro-diesel by a novel hydrocarbon tolerable strainPaenibacillus glucanolyticusHN4en_US
dc.typeArticleen_US

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