کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11027925 | 1666147 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
New contributions for industrial n-butanol fermentation: An optimized Clostridium strain and the use of xylooligosaccharides as a fermentation additive
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
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چکیده انگلیسی
n-Butanol is a chemical widely used in industry, with an approximate annual output of 4 million tons and a market valued at USD 8.6 billion. It was first produced by ABE fermentation (acetone - n-butanol - ethanol) at the beginning of the twentieth century using molasses as a substrate, an expensive raw material that made the process economically unfeasible. In this work, we developed a second-generation fermentation process using cellulosic sugar as the substrate. A strain of Clostridium saccharoperbutylacetonicum has been evolved to n-butanol resistance, and we have found that the addition of xylooligosaccharides to the culture medium leads to a significant increase in the n-butanol yield and productivity. As a result, an n-butanol titer of 12.5â¯g/L and a productivity of 0.43â¯g/L.h were obtained, a respective gain of 17% and 58% relative to the initial process. These advances indicate that second-generation technologies can make viable the production of renewable n-butanol.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biomass and Bioenergy - Volume 119, December 2018, Pages 304-313
Journal: Biomass and Bioenergy - Volume 119, December 2018, Pages 304-313
نویسندگان
M.C.B. Grassi, M.F. Carazzolle, B.T. Nakagawa, A. Ferrari, S. Nagamatsu, C.R. Santos, M.T. Murakami, R.A.S. Pirolla, G.A.G. Pereira,