Biotechnol Lett (2018) 40:1037–1048 https://doi.org/10.1007/s10529-018-2565-9 ORIGINAL RESEARCH PAPER Ecofriendly demulsiﬁcation of water in oil emulsions by an efﬁcient biodemulsiﬁer producing bacterium isolated from oil contaminated environment Hoda Sabati Hossein Motamedi Received: 29 December 2017 / Accepted: 11 May 2018 / Published online: 15 May 2018 Springer Science+Business Media B.V., part of Springer Nature 2018 Abstract liquid parafﬁn will increase demulsiﬁcation efﬁciency Objective Water in oil emulsions increase oil pro- of the biodemulsiﬁer. cessing costs and cause damage to reﬁnery equipment Conclusions The appropriate potential of this which necessitates demulsiﬁcation. Since chemical biodemulsiﬁer strengthens the possibility of its appli- demulsiﬁers cause environmental pollution, cation in industries especially petroleum industry. biodemulsiﬁers have been paid more attention. This study aims to identify biodemulsiﬁer-producing bac- Keywords Biodemulsiﬁer Biodemulsiﬁer- teria from petroleum contaminated environments. producing bacterium Demulsiﬁcation Water in oil Results As a result, several biodemulsiﬁer producing emulsion strains were found that Stenotrophomonas sp. strain HS7 (accession number: MF445088) which produced a cell associated biodemulsiﬁer showed the highest demulsifying ratio, 98.57% for water in kerosene and Introduction 66.28% for water in crude oil emulsion after 48 h. 35 C, pH 7, 48 h incubation and ammonium nitrate as Oil in water
Biotechnology Letters – Springer Journals
Published: May 15, 2018
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