کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7065847 1459875 2018 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Use of metal chlorides during waste wheat straw autohydrolysis to overcome the self-buffering effect
ترجمه فارسی عنوان
استفاده از کلرید های فلزی در طی اتو هیدرولیز کاه گندم برای غلبه بر اثر خود جذب کننده
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
High ash content of waste wheat straw (WWS) is resistant to biorefinery autohydrolysis pretreatment due to its self-buffering effects. In this work, minor addition FeCl3 and AlCl3 were applied to overcome the self-buffering effects of WWS by cationic occupation of the negatively charged sites present on particulate ash's surface. The results showed that with the increasing concentrations (0-20 mM) of AlCl3 and FeCl3, the enzymatic efficiencies of autohydrolyzed WWS were enhanced from 49.7% to 62.1% and 66.6%, respectively. Acid buffer and cation exchange capacity of pretreated WWS were decreased by adding metal chlorides and the reducing results were mainly attributed to cation exchange. Meanwhile, a maximum monosaccharide production (185.3 mg/g-WWS) was achieved with 62.0 mg/g-WWS xylooligosaccharide by using 20 mM FeCl3 during WWS autohydrolysis. The results demonstrated that the implications of FeCl3 and AlCl3 in WWS autohydrolysis were an effective strategy to enhance autohydrolysis efficiency by overcoming self-buffering effects.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 268, November 2018, Pages 259-265
نویسندگان
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