سال انتشار: ۱۳۸۶
محل انتشار: پنجمین کنگره بین المللی مهندسی شیمی
تعداد صفحات: ۴
Hossein Salehizadeh – Biotechnology Group, Faculty of Engineerring, University of Isfahan, Isfahan, Iran
Aida Ranjbar – Biotechnology Group, Faculty of Engineerring, University of Isfahan, Isfahan, Iran
A new strain isolated from a petroleum contaminated site of Siri island was able to de-emulsify a surfactant-stabilized water-in-oil emulsions. De-emulsification increased with contact time and maximum activity (about 96.4%) was occurred at stationary phase after 48 h. De-emulsification activity of this strain was attributed to cell surface biopolymers. The isolate shown higher de-emulsifying activity by consuming glucose and molasses rather than crude oil and hexadecane as carbon sources. The produced de-emulsifier was thermal stable and the culture activity was observed after autoclaving at 120 ○C. This paper describes briefly isolation a relatively powerful microbial de-emulsifier and investigates the effect of various carbon sources, and some properties of the separated de-emulsifiers.