کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7069574 | 1459897 | 2018 | 20 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electron receptor addition enhances butanol synthesis in ABE fermentation by Clostridium acetobutylicum
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Electron receptor addition enhances butanol synthesis in ABE fermentation by Clostridium acetobutylicum Electron receptor addition enhances butanol synthesis in ABE fermentation by Clostridium acetobutylicum](/preview/png/7069574.png)
چکیده انگلیسی
The techniques for enhancing butanol production in ABE fermentation by Clostridium acetobutylicum generally focus on adding electron carrier to strengthen NADH synthesis, repressing hydrogenase by aerating CO, supplementing butyrate, etc. However, those methods suffer from the problems of total solvent decrease, high purification cost, using expensive supplemental substances, etc. In this study, we added small amount of electron receptors (Na2SO4/CaSO4, 2Â g/L) into ABE fermentation broth: to alter electron/proton distributions in the intracellular electron transport shuttle system, directing more electron/proton pairs into NADH synthesis route; to stimulate intracellular accumulation of those amino acids favorable for cells survival/butanol synthesis. In ABE fermentation in a 7Â L fermentor, adding 2Â g/L Na2SO4 could raise butanol concentration to a higher level of 12.96Â g/L, which was 34.8% higher than that of the control. Addition of tiny amount cheap electron receptor would provide a new way to enhance bio-butanol production.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 247, January 2018, Pages 1201-1205
Journal: Bioresource Technology - Volume 247, January 2018, Pages 1201-1205
نویسندگان
Jian Ding, Hongzhen Luo, Fang Xie, Hao Wang, Meng Xu, Zhongping Shi,