کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10235448 45043 2014 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An immobilized Thiobacillus thioparus biosensing system for monitoring sulfide hydrogen; optimized parameters in a bioreactor
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله
An immobilized Thiobacillus thioparus biosensing system for monitoring sulfide hydrogen; optimized parameters in a bioreactor
چکیده انگلیسی
A microbial biosensing system for detection of hydrogen sulfide has been developed by using immobilized Thiobacillus thioparus TK-m in poly vinyl alcohol matrix, together with a dissolved oxygen sensor. Parameters of immobilization (poly vinyl alcohol concentration and amount of wet cell) were optimized by using statistical software. The obtained values for concentration of poly vinyl alcohol and wet cell weight were 11.3% (w/v) and 45 mg, respectively, where the response time of biosensor was 80 s. Calibration of oxygen concentration based on hydrogen sulfide concentration was investigated between 1 mg/L and 20 mg/L. The effect of pH and temperature were investigated in specific range of experimental conditions as well. Some parameters including operational stability and detection limit were studied in detail for characterization of biosensing system. In order to determine the operational stability, bio-sensing system at optimized working conditions was used to distinguish viability of microorganisms in polymer beads in period of time.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Process Biochemistry - Volume 49, Issue 3, March 2014, Pages 380-385
نویسندگان
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