Abstract：
:To overcoming the natural recalcitrance of cellulose for glucose production via enzymatic hydrolysis, a new strategy of destroying hydrogen bond donor to reconstruct cellulose's hydrogen bonding network was developed via a mild reversible reaction of cellulose with CO2 catalyzed by organic bases. The reaction dynamics of cellulose with CO2 in the presence of organic bases was studied by using in situ IR. Investigation also included how the organic bases in pretreatment media and pretreatment parameters including CO2 pressure, pretreatment temperature and time affected the physical-chemical structure of cellulose by Fourier Transform Infrared Spectroscopy (FT-IR), X-ray diffraction (XRD), scanning electron microscopy (SEM) and Atomic force microscopy (AFM) and subsequent enzymatic scarification of cellulose. The findings showed that dissolution activation efficiency significantly correlated to various parameters, that can be optimized to be the tetramethyl guanidine (TMG)/CO2/DMSO solvent system at 50 °C, 2 MPa of CO2 for 2 h, by which a complete transformation the cellulose crystalline structure from I to II, and 100% glucose yield were achieved. The recyclability and usability are also investigated.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Gan J,Peng Y,Chen Q,Hu G,Xu Q,Jin L,Xie Hdoi
10.1016/j.biortech.2019.122230subject
Has Abstractpub_date
2020-01-01 00:00:00pages
122230eissn
0960-8524issn
1873-2976pii
S0960-8524(19)31460-9journal_volume
295pub_type
杂志文章abstract：:The aim of this study was to evaluate the potential of Hancornia speciosa GOMES (mangaba) seeds as a novel matrix for the production of bio-oil. The study was divided into three steps: (i) characterization of the biomass (through elemental analysis (CHN), infrared spectroscopy (FTIR-ATR), thermogravimetry (TG), and de...
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abstract：:A novel algal-bacterial symbiosis system based on sequencing batch suspended biofilm reactor (A-SBSBR) was developed for simultaneously enhanced nitrogen (N) and phosphorus (P) removal from domestic wastewater. Results showed that the total N (TN) and P (TP) removal efficiencies in A-SBSBR increased to 69.91% and 94.7...
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abstract：:The effects of xylo-oligosaccharides (XOS) and xylose on the hydrolytic activities of cellulases, endoglucanase II (EGII, originating from Thermoascus aurantiacus), cellobiohydrolase I (CBHI, from T. aurantiacus), and cellobiohydrolase II (CBHII, from Trichoderma reesei) on Avicel and nanocellulose were investigated. ...
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pub_type： 杂志文章
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pub_type： 杂志文章,评审
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pub_type： 杂志文章
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更新日期：2012-07-01 00:00:00
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journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2015.03.082
更新日期：2015-09-01 00:00:00
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journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2014.02.045
更新日期：2014-08-01 00:00:00
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pub_type： 杂志文章
doi：10.1016/j.biortech.2009.06.025
更新日期：2009-12-01 00:00:00
abstract：:Efficient algal harvesting, cell pretreatment and lipid extraction are the major steps challenging the algal biofuel industrialization. To develop sustainable solutions for economically viable algal biofuels, our research aims at devising innovative reactive electrochemical membrane (REM) filtration systems for simult...
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pub_type： 杂志文章
doi：10.1016/j.biortech.2015.12.041
更新日期：2016-03-01 00:00:00
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pub_type： 杂志文章
doi：10.1016/j.biortech.2017.08.049
更新日期：2017-11-01 00:00:00
abstract：:This paper describes a series of studies on the effects of food waste disintegration using an ultrasonic generator and the production of volatile fatty acids (VFAs) by anaerobic hydrolysis. The results suggest that ultrasound treatment can significantly increase COD [chemical oxygen demand], proteins and reducing suga...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2013.12.064
更新日期：2014-03-01 00:00:00
abstract：:When Chlorella biomass was hydrolyzed in the presence of 2% HCl and 2.5% MgCl(2), a sugar concentration of nearly 12%, and a sugar recovery of about 83% was obtained. Fermentation experiments demonstrated that glucose in the Chlorella biomass hydrolysates was converted into ethanol by Saccharomyces cerevisiae with a y...
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pub_type： 杂志文章
doi：10.1016/j.biortech.2011.08.051
更新日期：2011-11-01 00:00:00
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更新日期：2011-09-01 00:00:00
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pub_type： 杂志文章,评审
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更新日期：2020-03-01 00:00:00
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更新日期：2003-03-01 00:00:00
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更新日期：2010-03-01 00:00:00
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更新日期：2020-12-01 00:00:00
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journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2010.01.120
更新日期：2010-07-01 00:00:00
abstract：:The laccase gene lac48424-1 and its corresponding full-length cDNA were cloned and characterized from a novel white-rot fungi Trametes sp. 48424 which had the high yield of laccase and strong ability for decolorizing different dyes. The 1563 bp full-length cDNA of lac48424-1 encoded a mature laccase protein containing...
journal_title：Bioresource technology
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更新日期：2011-02-01 00:00:00
