کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
679847 1459958 2015 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Steam pretreatment of agricultural residues facilitates hemicellulose recovery while enhancing enzyme accessibility to cellulose
ترجمه فارسی عنوان
پیشگیری از بخار باقی مانده های کشاورزی باعث بهبود بازیابی همی سلولوز می شود، در حالی که افزایش قابلیت آنزیم سلولز را بهبود می بخشد
کلمات کلیدی
پیش درمان بخار، ویژگی های فیبر، دسترسی سلولز، سایمونز رنگ می کند باقی مانده های کشاورزی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
چکیده انگلیسی


• Steam pretreatment showed similar results with 7 agricultural residues.
• Hemicellulose solubilized correlated (r2 = 0.98) with enzymatic hydrolysis yields.
• Simons staining correlated (r2 = 0.83) with hemicellulose removal/hydrolysis.

The origins of lignocellulosic biomass and the pretreatment used to enhance enzyme accessibility to the cellulosic component are known to be strongly influenced by various substrate characteristics. To assess the impact that fibre properties might have on enzymatic hydrolysis, seven agricultural residues were characterised before and after steam pretreatment using a single pretreatment condition (190 °C, 5 min, 3% SO2) previously shown to enhance fractionation and hydrolysis of the cellulosic component of corn stover. When the fibre length, width and coarseness, viscosity, water retention value and cellulose crystallinity were monitored, no clear correlation was observed between any single substrate characteristic and the substrate’s ease of enzymatic hydrolysis. However, the amount of hemicellulose that was solubilised during pretreatment correlated (r2 = 0.98) with the effectiveness of enzyme hydrolysis of each pretreated substrate. Simons’s staining, to measure the cellulose accessibility, showed good correlation (r2 = 0.83) with hemicellulose removal and the extent of enzymatic hydrolysis.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 185, June 2015, Pages 302–307
نویسندگان
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