کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
299921 512459 2015 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An irradiation-alkaline pretreatment of kenaf core for improving the sugar yield
ترجمه فارسی عنوان
پیشگیری از اکسیداسیون قلیایی هسته کناف برای بهبود عملکرد شکر
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی


• A facile two-step method was developed for producing fermentable sugars.
• The synergic effect of dilute alkaline pretreatment on the EBI of kenaf core was assessed.
• A total sugar yield of 72.4% was obtained with a 63.9% yield of glucose.

Kenaf (Hibiscus cannabinus) has received considerable attention as a renewable resource because of its fast growth and low lignin content. In the present study, a combination pretreatment of kenaf core using electron beam irradiation (EBI) and dilute alkali was investigated to improve the sugar yield in enzymatic hydrolysis. In the first step, EBI of the kenaf core was performed at various doses ranging from 100 to 500 kGy. The electron beam-irradiated kenaf core was then autoclaved with 3% dilute alkali at 120 °C for 5 h. The pretreated kenaf core was finally subjected to enzymatic hydrolysis at 50 °C for 24, 48, and 72 h by Celluclast 1.5 L (70 FPU/mL) and Novozyme-188 (40 CbU/mL). A total sugar yield of 72.4% was obtained with a 63.9% yield of glucose from pretreated kenaf core after 72 h of enzymatic hydrolysis. To further analyze effectiveness of EBI pretreatment, characterizations of kenaf core by a two-step process of EBI-alkaline pretreatment were also investigated.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Renewable Energy - Volume 79, July 2015, Pages 51–55
نویسندگان
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