کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7077289 1459976 2014 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Innovative pretreatment of sugarcane bagasse using supercritical CO2 followed by alkaline hydrogen peroxide
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Innovative pretreatment of sugarcane bagasse using supercritical CO2 followed by alkaline hydrogen peroxide
چکیده انگلیسی
An innovative method for pretreatment of sugarcane bagasse using sequential combination of supercritical CO2 (scCO2) and alkaline hydrogen peroxide (H2O2) at mild conditions is proposed. This method was found to be superior to the individual pretreatment with scCO2, ultrasound, or H2O2 and the sequential combination of scCO2 and ultrasound regarding the yield of cellulose and hemicellulose, almost twice the yield was observed. Pretreatment with scCO2 could obtain higher amount of cellulose and hemicellulose but also acid-insoluble lignin. Pretreatment with ultrasound or H2O2 could partly depolymerize lignin, however, could not separate cellulose from lignin. The analysis of liquid products via enzymatic hydrolysis by HPLC and the characterization of the solid residues by SEM revealed strong synergetic effects in the sequential combination of scCO2 and H2O2.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 167, September 2014, Pages 192-197
نویسندگان
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