کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7083061 1460007 2013 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Efficient ethanol production from corncob residues by repeated fermentation of an adapted yeast
ترجمه فارسی عنوان
تولید اتانول کارآمد از باقیمان های ذرت با تخمیر تکراری یک مخمر سازگار
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
For economically feasible lignocellulosic ethanol production, it is crucial to obtain a robust strain and develop an efficient fermentation process. An earlier-screened yeast strain Pichia guilliermondii was adapted to corncob residues (CCR) hydrolysate and used for high titer ethanol production without any detoxification or external nutrient supplementation. With an optimized fed-batch strategy, the maximum ethanol titer and productivity reached 56.3 g/l and 0.47 g l−1 h−1, respectively. To further increase the ethanol productivity, the fed-batch process was repeated three times with cell reuse, and the maximum ethanol titer and productivity reached 51.2 g/l and 1.11 g l−1 h−1, respectively. The results demonstrated that the combination of fed-batch with repeated fermentation was effective in improving the fermentation efficiency and achieving high ethanol productivity from CCR. The reported system is considered promising for commercial production of bioethanol from biomass hydrolysate in the future.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 136, May 2013, Pages 309-315
نویسندگان
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