کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10133434 | 1645592 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Boosting the fermentable sugar yield and concentration of corn stover by magnesium oxide pretreatment for ethanol production
ترجمه فارسی عنوان
تقویت عملکرد شکر قابل جذب و غلظت ذرت ذرت با پیش پیشگیری از اکسید منیزیم برای تولید اتانول
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
MgO pretreatment was investigated to boost the fermentable sugars derived from corn stover with LHW pretreatment as control. Compared to LHW pretreatment, MgO pretreatment caused twice hemicellulose recovery (42 vs 21%). Double hemicellulose recovery not only didn't affect glucose yield but increased xylose yield by 13% and total sugar yield by 6% under the optimal conditions (pretreatment: 10% biomass loading, 0.1â¯mol/L MgO, 190â¯Â°C, and 40â¯min; hydrolysis: pretreated biomass loading of 10â¯g/100â¯mL, enzyme loading of 1â¯mL/g pretreated biomass, 50â¯Â°C, and 120â¯h). A total sugar concentration of 50â¯g/L was obtained under the above conditions. Besides, the enzyme component hydrolyzing xylan may be prone to deactivation by lignin residues in pretreated biomass. Both SEM and FTIR analyses indicate that MgO effectively disrupted the biomass structures and enlarged the exposed surface area of carbohydrates, thus boosting the enzymatic hydrolysis and fermentable sugars for ethanol production.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 269, December 2018, Pages 400-407
Journal: Bioresource Technology - Volume 269, December 2018, Pages 400-407
نویسندگان
Jun Li, Wentao Li, Meng Zhang, Donghai Wang,