کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10133471 | 1645592 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Pretreatment with lower feed moisture and lower extrusion temperatures aids in the increase in the fermentable sugar yields from fine-milled Douglas-fir
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
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چکیده انگلیسی
The impact of independent variables of extrusion on dependent variables of pre-milled Douglas-fir forest residuals was studied to enhance the enzymatic hydrolysis for production of fermentable sugar without catalysts. Co-rotating twin screw extruder was operated with three different feedstock moisture contents (30, 40, and 50%) at four different barrel temperatures (25, 50, 100, and 150â¯Â°C) as a pretreatment. The specific mechanical energy input ranged from 0.07 and 0.30â¯kWh/kg and had a very strong positive correlation with torque (râ¯=â¯0.96, pâ¯<â¯0.01), glucose (râ¯=â¯0.92, pâ¯<â¯0.01) and xylose/mannose yields with (râ¯=â¯0.84, pâ¯<â¯0.01). Douglas-fir residuals extruded at lowest moisture content (30%) and temperature (25â¯Â°C) had the highest sugar yield, requiring the highest SME. Higher barrel temperature increased the median particle size and had lower glucose and xylose/mannose yields. Recrystallization and agglomeration were observed under higher temperature conditions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 269, December 2018, Pages 262-268
Journal: Bioresource Technology - Volume 269, December 2018, Pages 262-268
نویسندگان
Bon-Jae Gu, Michael P. Wolcott, Girish M. Ganjyal,