کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7074928 1459956 2015 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Production of cellulosic ethanol from cotton processing residues after pretreatment with dilute sodium hydroxide and enzymatic hydrolysis
ترجمه فارسی عنوان
تولید اتانول سلولزی از پس مانده های پردازش پنبه پس از پیش درمان با هیدروکسید سدیم رقیق و هیدرولیز آنزیمی
کلمات کلیدی
زباله های پنبه ای، گرد و غبار جین پنبه، پیشگیری از قلیایی، هیدرولیز آنزیمی، تخمیر
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
In this study, production of cellulosic ethanol from two cotton processing residues was investigated after pretreatment with dilute sodium hydroxide. Pretreatment performance was investigated using a 22 factorial design and the highest glucan conversion was achieved at the most severe alkaline conditions (0.4 g NaOH g−1 of dry biomass and 120 °C), reaching 51.6% and 38.8% for cotton gin waste (CGW) and cotton gin dust (CGD), respectively. The susceptibility of pretreated substrates to enzymatic hydrolysis was also investigated and the best condition was achieved at the lowest total solids (5 wt%) and the highest enzyme loading (85 mg of Cellic CTec2 g−1 of dry substrate). However, the highest concentration of fermentable sugars - 47.8 and 42.5 g L−1 for CGD and CGW, respectively - was obtained at 15 wt% total solids using this same enzyme loading. Substrate hydrolysates had no inhibitory effects on the fermenting microorganism.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 187, July 2015, Pages 91-96
نویسندگان
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