کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6637775 461148 2014 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Continuous lignocellulosic ethanol production using Coleus forskohlii root hydrolysate
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Continuous lignocellulosic ethanol production using Coleus forskohlii root hydrolysate
چکیده انگلیسی
Root biomass of Coleus forskohlii obtained after extraction of forskolin constitutes more than 90% of the raw material rich in carbohydrates that could be used as a substrate for the production of bioethanol. Ethanol production from this waste biomass was optimized in batch and continuous fermentation. The maximum ethanol concentration of 31.32 g/l was obtained with batch fermentation. Continuous production of ethanol was carried out using wood chips immobilized cells of Saccharomyces cerevisiae in packed bed reactor. The maximum ethanol concentration of 34.25 g/l was obtained with nitrogen supplement and aeration as compared to 33.57 g/l without supplement and aeration at 0.1 (1/h) dilution rate showing no effect of aeration and nitrogen at low dilution rate. The maximum ethanol productivity (15.88 g/l h) was obtained at a dilution rate of 1 (1/h) with nitrogen supplement and aeration whereas ethanol productivity (13.48 g/l h) was obtained at a dilution rate of 0.75 (1/h) without nitrogen supplement and aeration showing promising effect of nitrogen and aeration at high dilution rate. Immobilized column reactor was useful for the production of bioethanol, and also suggests efficient utilization of C. forskohlii root biomass for the production of bioethanol.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 126, 15 June 2014, Pages 77-84
نویسندگان
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