کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
18516 42725 2006 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Bioethanol production based on simultaneous saccharification and fermentation of steam-pretreated Salix at high dry-matter content
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله
Bioethanol production based on simultaneous saccharification and fermentation of steam-pretreated Salix at high dry-matter content
چکیده انگلیسی

Simultaneous saccharification and fermentation (SSF) was performed on the slurries resulting from steam pretreatment of non-, SO2- and H2SO4-impregnated Salix chips. The aim was to increase the ethanol concentration by running SSF at high dry-matter content, while maintaining a high ethanol yield. Using SO2-impregnated Salix chips in steam pretreatment resulted in the highest ethanol concentration in the subsequent SSF. At a water-insoluble solids concentration of 9%, 32 g/L ethanol was obtained after 78 h of SSF, using 3.3 g/L baker's yeast (Saccharomyces cerevisiae) cultivated on the pretreatment liquid. This corresponds to an overall ethanol yield of 76% of the theoretical, based on the glucan and mannan content in the raw material. The cultivation procedure made the yeast better adapted to the medium. However, increasing the substrate loading further resulted in decreased fermentability.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Enzyme and Microbial Technology - Volume 39, Issue 4, 2 August 2006, Pages 756–762
نویسندگان
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