کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7082712 1460005 2013 31 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Peracetic acid-ionic liquid pretreatment to enhance enzymatic saccharification of lignocellulosic biomass
ترجمه فارسی عنوان
قبل از درمان مایع اسید-یونیک پراکساکتیو برای افزایش ضریب واکنش آنزیمی زیست توده لیگنوسلولز
کلمات کلیدی
زیست توده، سلولز، واکنش زنجیره ای آنزیمی، مایع یونی، پیش درمان اسید پراتیک
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
To enhance enzymatic saccharification of pine biomass, the pretreatment reagents peracetic acid (PAA) and ionic liquid (IL) were validated in single reagent pretreatments or combination pretreatments with different sequences. In a 1 h saccharification, 5-25% cellulose conversion was obtained from the single pretreatment of PAA or IL. In contrast, a marked enhancement in conversion rates was achieved by PAA-IL combination pretreatments (45-70%). The PAA followed by IL (PAA + IL) pretreatment sequence was the most effective for preparing an enzymatic digestible regenerated biomass with 250-fold higher glucose formation rates than untreated biomass and 2- to 12-fold higher than single pretreatments with PAA or IL alone. Structural analysis confirmed that this pretreatment resulted in biomass with highly porous structural fibers associated with the reduction of lignin content and acetyl groups. Using the PAA + IL sequence, biomass loading in the pretreatment step can be increased from 5% to 15% without significant decrease in cellulose conversion.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 138, June 2013, Pages 87-94
نویسندگان
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