کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7076739 1459976 2014 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Sequential hydrolysis of waste newspaper and bioethanol production from the hydrolysate
ترجمه فارسی عنوان
هیدرولیز سریال روزنامه زباله و تولید بیواتانول از هیدرولیزات
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
A practical process was developed for production of a high quality hydrolysate of waste newspaper that ensured its complete fermentability to bioethanol. After pretreatment with 0.1 N NaOH for 12 h and sequential acid and enzyme hydrolysis, 10.1 g/L of glucose (50.5%), 1.38 g/L of mannose (6.9%) and 0.28 g/L of galactose (1.4%), a total of 11.76 g/L of fermentable sugars was obtained, which accounts for 88.7% of saccharification efficiency. The Saccharomyces cerevisiae BCRC20271 showed excellent co-fermentability of glucose, mannose and galactose in hydrolysate of waste newspaper. After cultivation of the hydrolysate at 24 °C in static culture for 48 h, the final ethanol concentration of 5.72 g/L (96% conversion efficiency) was produced. Overall, 1000 kg of waste newspaper will produce 286 kg (362 L) of ethanol by the process developed, which reveals that waste newspaper has higher potential than many other lignocellulosic and seaweed feedstocks for bioethanol production.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 167, September 2014, Pages 159-168
نویسندگان
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