کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
10235219 45021 2015 23 صفحه PDF سفارش دهید دانلود رایگان
عنوان انگلیسی مقاله ISI
In situ detoxification of lignocellulosic hydrolysate using a surfactant for butyric acid production by Clostridium tyrobutyricum ATCC 25755
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موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله
In situ detoxification of lignocellulosic hydrolysate using a surfactant for butyric acid production by Clostridium tyrobutyricum ATCC 25755
چکیده انگلیسی
Lignocellulosic degradation compounds, especially phenolic compounds, inhibit the fermentation of Clostridium strains. In this study, a simple in situ detoxification method using a surfactant was developed for butyric acid production by Clostridium tyrobutyricum ATCC25755. Tween 80, a non-ionic surfactant, was chosen to sequester inhibitors by forming micelles, consequently preventing direct contact of inhibitors with cell membranes. When Tween 80 was added during fermentation, butyric acid production was significantly enhanced in the presence of hydrophobic phenolics such as p-coumaric acid (0 vs. 3.1 g/L butyric acid) and ferulic acid (2.2 vs. 4.6 g/L butyric acid) even at 0.016 g/L of Tween 80 (corresponding to the critical micelle concentration). Lignin, a polyphenol compound in lignocellulose, was also detoxified by Tween 80. When Tween 80 was added to acid-pretreated rice straw hydrolysate, butyric acid production significantly increased (0.1 vs. 8.7 g/L butyric acid), thus verifying detoxification effect of Tween 80 on lignocellulosic hydrolysate.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Process Biochemistry - Volume 50, Issue 4, April 2015, Pages 630-635
نویسندگان
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