کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4926611 1431601 2017 24 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ethanol production from lignocellulosic substrate Prosopis juliflora
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
پیش نمایش صفحه اول مقاله
Ethanol production from lignocellulosic substrate Prosopis juliflora
چکیده انگلیسی
Delignification of Prosopis juliflora at 10 g, 100 g and 1 kg level at 1:10 ratio using 2% (w/v) Na2S2O4 at 30 ± 2 °C for 18 h resulted in removal of 82.16 ± 0.34%, 81.82 ± 0.36% and 79.23 ± 0.25% of lignin, respectively. By subsequent biphasic dilute acid hydrolysis of substrate, 51.4 ± 0.47%, 51.2 ± 0.52% and 48.1 ± 0.18% of holocellulose was hydrolyzed with release of 1.94 ± 0.03 g/L, 2.16 ± 0.10 g/L and 1.68 ± 0.05 g/L phenolics and 1.17 ± 0.02 g/L, 1.10 ± 0.03 g/L and 1.07 ± 0.04 g/L of furans, respectively. Later, detoxification of hydrolysates removed 85.83 ± 2.8% of phenolics, 87.85 ± 2.4% of furans with sugar loss of 4.74 ± 0.12%. Enzymatic hydrolysis of substrate yielded 39.37 ± 0.92 g/L, 37.37 ± 0.8 g/L and 30.07 ± 0.48 g/L of sugars, respectively. Further, fermentation of mixture of acid and enzyme hydrolysate at 100 g level of substrate using co culture-c (Saccharomyces cerevisiae VS3 and Pichia stipitis NCIM 3498) produced 10.85 g/L of ethanol with fermentation efficiency, ethanol yield and productivity of 87.34 ± 0.28%, 0.445 ± 1.32 g/g and 0.301 ± 0.011 g/L/h, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Renewable Energy - Volume 103, April 2017, Pages 701-707
نویسندگان
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