کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
686123 889062 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Improved enzymatic hydrolysis yield of rice straw using electron beam irradiation pretreatment
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Improved enzymatic hydrolysis yield of rice straw using electron beam irradiation pretreatment
چکیده انگلیسی

Rice straw was irradiated using an electron beam at currents and then hydrolyzed with cellulase and β-glucosidase to produce glucose. The pretreatment by electron beam irradiation (EBI) was found to significantly increase the enzyme digestibility of rice straw. Specifically, when rice straw that was pretreated by EBI at 80 kGy at 0.12 mA and 1 MeV was hydrolyzed with 60 FPU of cellulase and 30 CBU of β-glucosidase, the glucose yield after 132 h of hydrolysis was 52.1% of theoretical maximum. This value was significantly higher than the 22.6% that was obtained when untreated rice straw was used. In addition, SEM analysis of pretreated rice straw revealed that EBI caused apparent damage to the surface of the rice straw. Furthermore, EBI pretreatment was found to increase the crystalline portion of the rice straw. Finally, the crystallinity and enzyme digestibility were found to be strongly correlated between rice straw samples that were pretreated by EBI under different conditions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 100, Issue 3, February 2009, Pages 1285–1290
نویسندگان
, , , , , ,