کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
685760 889049 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Study of flocculent yeast performance in tower reactors for bioethanol production in a continuous fermentation process with no cell recycling
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Study of flocculent yeast performance in tower reactors for bioethanol production in a continuous fermentation process with no cell recycling
چکیده انگلیسی

The purpose of this study was to assess the retention ability of 12 different Saccharomyces sp. yeast strains with flocculent characteristics when inoculated in a continuous ethanol fermentation process. The system was comprised of two reactors connected in series with no cell recycling. The feeding substrate used was a synthetic medium containing glucose. The parameters assessed were total reducing sugars of the feeding substrate, total reducing sugars and ethanol at the outlet of the first and second reactors and quantification and classification of yeast population in the two reactors. The system reached yield levels of 83.53% of theoretical yield with a maximum total reducing sugars conversion of 92.68%. The conversion in this system was lower than expected. The dominant yeast in the process in both reactors, contrary to expectation, was the Saccharomyces CP6 strain which was unable to form pellets in spite of its flocculate growth.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 99, Issue 8, May 2008, Pages 3002–3008
نویسندگان
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