کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7788284 | 1500630 | 2015 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Combining biomass wet disk milling and endoglucanase/β-glucosidase hydrolysis for the production of cellulose nanocrystals
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Combining biomass wet disk milling and endoglucanase/β-glucosidase hydrolysis for the production of cellulose nanocrystals Combining biomass wet disk milling and endoglucanase/β-glucosidase hydrolysis for the production of cellulose nanocrystals](/preview/png/7788284.png)
چکیده انگلیسی
Cellulose nanocrystals (CNCs), a biomaterial with high added value, were obtained from pure cellulose, Eucalyptus holocellulose, unbleached Kraft pulp, and sugarcane bagasse, by fibrillating these biomass substrates using wet disk milling (WDM) followed by enzymatic hydrolysis using endoglucanase/β-glucosidase. The hydrolysis experiments were conducted using the commercial enzyme Optimashâ¢BG or a blend of Pyrococcus horikoshii endoglucanase and Pyrococcus furiosus β-glucosidase. The fibrillated materials and CNCs were analyzed by X-ray diffraction, atomic force microscopy, scanning electron microscopy, and the specific surface area (SSA) was measured. WDM resulted in the formation of long and twisted microfibers of 1000-5000 nm in length and 4-35 nm in diameter, which were hydrolyzed into shorter and straighter CNCs of 500-1500 nm in length and 4-12 nm in diameter, with high cellulose crystallinity. Therefore, the CNC's aspect ratio was successfully adjusted by endoglucanases under mild reaction conditions, relative to the reported acidic hydrolysis method.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 128, 5 September 2015, Pages 75-81
Journal: Carbohydrate Polymers - Volume 128, 5 September 2015, Pages 75-81
نویسندگان
Ricardo Sposina Sobral Teixeira, Ayla Sant'Ana da Silva, Jae-Hyuk Jang, Han-Woo Kim, Kazuhiko Ishikawa, Takashi Endo, Seung-Hwan Lee, Elba P.S. Bon,