کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4997615 1459914 2017 34 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Identifying and overcoming the effect of mass transfer limitation on decreased yield in enzymatic hydrolysis of lignocellulose at high solid concentrations
ترجمه فارسی عنوان
شناسایی و غلبه بر تأثیر محدودیت انتقال جرم در کاهش عملکرد در هیدرولیز آنزیمی لیگنوسلولوز در غلظت های جامد بالا
کلمات کلیدی
زیست توده لیگنوسلولوزیک، تبدیل سلولز، هیدرولیز آنزیمی قوی جامد، جابجایی عظیم، مخلوط کردن،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
Cellulose conversion decreases significantly with increasing solid concentrations during enzymatic hydrolysis of insoluble lignocellulosic materials. Here, mass transfer limitation was identified as a significant determining factor of this decrease by studying the hydrolysis of delignified corncob residue in shake flask, the most used reaction vessel in bench scale. Two mass transfer efficiency-related factors, mixing speed and flask filling, were shown to correlate closely with cellulose conversion at solid loadings higher than 15% DM. The role of substrate characteristics in mass transfer performance was also significant, which was revealed by the saccharification of two corn stover substrates with different pretreatment methods at the same solid loading. Several approaches including premix, fed-batch operation, and particularly the use of horizontal rotating reactor were shown to be valid in facilitating cellulose conversion via improving mass transfer efficiency at solid concentrations higher than 15% DM.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 229, April 2017, Pages 88-95
نویسندگان
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