کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4996572 | 1368271 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Biobutanol production from brewer's spent grain hydrolysates by Clostridium beijerinckii
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Brewer's spent grain (BSG) is a promising feedstock for ABE fermentation. Sulfuric acid pretreatment of BSG at pH 1, 121 °C and different solid loadings (5-15% w/w) was investigated. Enzymatic hydrolysis and ABE fermentation by Clostridium beijerinckii DSM 6422 of non-washed and washed pretreated BSG were performed to compare monosaccharide release and butanol production. Pretreatment at 15% w/w BSG resulted in higher availability of sugars in both the enzymatic hydrolysates and pretreatment liquid, and overall yields of 75 g butanol/kg BSG and 95 g ABE/kg BSG were obtained. When the enzymatic hydrolysate from the washed pretreated BSG was fermented, butanol (6.0 ± 0.5 g/L) and ABE (7.4 ± 1.0 g/L) concentrations were lower compared with 7.5 ± 0.6 g/L butanol and 10.0 ± 0.8 g/L ABE from a control. The fermentation of the liquid released in the pretreatment at 15% w/w resulted in a butanol production of 6.6 ± 0.8 g/L with a total ABE of 8.6 ± 1.3 g/L after overliming.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 244, Part 1, November 2017, Pages 166-174
Journal: Bioresource Technology - Volume 244, Part 1, November 2017, Pages 166-174
نویسندگان
Pedro E. Plaza, Luis Javier Gallego-Morales, Mariana Peñuela-Vásquez, Susana Lucas, M. Teresa GarcÃa-Cubero, Mónica Coca,