کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7071997 | 1459932 | 2016 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Evaluation of agave bagasse recalcitrance using AFEXâ¢, autohydrolysis, and ionic liquid pretreatments
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A comparative analysis of the response of agave bagasse (AGB) to pretreatment by ammonia fiber expansion (AFEXâ¢), autohydrolysis (AH) and ionic liquid (IL) was performed using 2D nuclear magnetic resonance (NMR) spectroscopy, wet chemistry, enzymatic saccharification and mass balances. It has been found that AFEX pretreatment preserved all carbohydrates in the biomass, whereas AH removed 62.4% of xylan and IL extracted 25% of lignin into wash streams. Syringyl and guaiacyl lignin ratio of untreated AGB was 4.3, whereas for the pretreated biomass the ratios were 4.2, 5.0 and 4.7 for AFEX, AH and IL, respectively. Using NMR spectra, the intensity of β-aryl ether units in aliphatic, anomeric, and aromatic regions decreased in all three pretreated samples when compared to untreated biomass. Yields of glucose plus xylose in the major hydrolysate stream were 42.5, 39.7 and 26.9 kg per 100 kg of untreated AGB for AFEX, IL and AH, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 211, July 2016, Pages 216-223
Journal: Bioresource Technology - Volume 211, July 2016, Pages 216-223
نویسندگان
Jose A. Perez-Pimienta, Carlos A. Flores-Gómez, Héctor A. Ruiz, Noppadon Sathitsuksanoh, Venkatesh Balan, Leonardo da Costa Sousa, Bruce E. Dale, Seema Singh, Blake A. Simmons,