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Mood Mohan et al.
Bioresource technology, 191, 244-252 (2015-05-23)
The aim of present study was to obtain total reducing sugars (TRS) from bamboo under subcritical water (SCW) treatment in a batch reactor at the temperature ranging from 170 °C to 220 °C and 40 min hydrolysis time. Experiments were...
Danielle Szczerbowski et al.
Carbohydrate polymers, 114, 95-101 (2014-09-30)
Two fractions of sugarcane, namely bagasse and straw (or trash), were characterized in relation to their chemical composition. Bagasse presented values of glucans, hemicelluloses, lignin and ash of 37.74, 27.23, 20.57 and 6.53%, respectively, while straw had 33.77, 27.38, 21.28...
Luiza Helena da Silva Martins et al.
Bioresource technology, 191, 312-321 (2015-05-26)
This work evaluated ethanol production from sugarcane bagasse at high solids loadings in the pretreatment (20-40% w/v) and hydrolysis (10-20% w/v) stages. The best conditions for diluted sulfuric acid, AHP and Ox-B pretreatments were determined and mass balances including pretreatment...
Ji Ye Lee et al.
Bioresource technology, 132, 84-90 (2013-02-12)
The objective of this work was to investigate the feasibility of acid-catalyzed hydrothermal fractionation for maximum solubilization of the hemicellulosic portion of three agricultural residues. The fractionation conditions converted into combined severity factor (CS) in the range of 1.2-2.9. The...
A Patrizi et al.
Giornale italiano di dermatologia e venereologia : organo ufficiale, Societa italiana di dermatologia e sifilografia, 147(6 Suppl 1), 1-8 (2013-01-18)
Pityriasis alba (PA) is a skin disorder characterized by finely scaly, hypopigmented patches, typical of childhood, that also represents an atopic dermatitis (AD) minor sign according to Hanifin and Rajka criteria. It may be isolated or associated with AD representing...
I S M Rafiqul et al.
Applied biochemistry and biotechnology, 176(4), 1071-1083 (2015-04-24)
Xylose-rich sawdust hydrolysate can be an economic substrate for the enzymatic production of xylitol, a specialty product. It is important to identify the process factors influencing xylitol production. This research aimed to screen the parameters significantly affecting bioxylitol synthesis from...
F Monlau et al.
Bioresource technology, 187, 379-386 (2015-04-13)
The robust supramolecular structure of biomass often requires severe pretreatments conditions to produce soluble sugars. Nonetheless, these processes generate some inhibitory compounds (i.e. furans compounds and aliphatic acids) deriving mainly from sugars degradation. To avoid the inhibition of the biological...
Luxin Zhang et al.
Bioresource technology, 130, 110-116 (2013-01-12)
In order to define a new green catalytic pathway for the production of furfural, the catalyzed conversion of xylan into furfural in 1-butyl-3-methylimidazolium chloride was studied by using mineral acids and metal chlorides as catalysts under microwave irradiation. Amongst these...
Reetta Karinen et al.
ChemSusChem, 4(8), 1002-1016 (2011-07-06)
Furfurals are important intermediates in the chemical industry. They are typically produced by homogeneous catalysis in aqueous solutions. However, heterogeneously catalyzed processes would be beneficial in view of the principles of green chemistry: the elimination of homogeneous mineral acids makes...
Kazuhiko Kurosawa et al.
Bioresource technology, 193, 206-212 (2015-07-05)
Extracting lipids from oleaginous microbial cells in a cost effective and environmentally compatible manner remains a critical challenge in developing manufacturing paradigms for advanced liquid biofuels. In this study, a new approach using microbial growth inhibitors from lignocellulose-derived feedstocks was...
Ava A Greenwood et al.
Biotechnology for biofuels, 8, 26-26 (2015-05-13)
Acid hydrolysis is a popular pretreatment for removing hemicellulose from lignocelluloses in order to produce a digestible substrate for enzymatic saccharification. In this work, a novel model for the dilute acid hydrolysis of hemicellulose within sugarcane bagasse is presented and...
Fenfen Wang et al.
Carbohydrate research, 368, 78-83 (2013-01-26)
The catalytic dehydration of fructose to 5-hydroxymethylfurfural (HMF) in DMSO was performed over Nb2O5 derived from calcination of niobic acid at various temperatures (300-700 °C). The catalysts were characterized by powder X-ray diffraction, N2 physical adsorption, temperature-programed desorption of NH3...
Zhi-Hua Liu et al.
Bioresource technology, 193, 345-356 (2015-07-06)
A novel conversion process using steam explosion combined with enzymatic digestibility was exploited to increase sugar yield. Results showed that glucan and xylan recovery decreased with the increase of holding temperature and residence time in SE, respectively, while glucan and...
Jianmin Zhang et al.
Journal of medicinal chemistry, 50(8), 1850-1864 (2007-03-27)
The 3C-like protease (3CLpro), which controls the severe acute respiratory syndrome (SARS) coronavirus replication, has been identified as a potential target for drug design in the treatment of SARS. A series of tetrapeptide phthalhydrazide ketones, pyridinyl esters, and their analogs...
Aya Iwaki et al.
Applied and environmental microbiology, 79(5), 1661-1667 (2013-01-01)
Various forms of stress can cause an attenuation of bulk translation activity and the accumulation of nontranslating mRNAs into cytoplasmic messenger RNP (mRNP) granules termed processing bodies (P-bodies) and stress granules (SGs) in eukaryotic cells. Furfural and 5-hydroxymethylfurfural (HMF), derived...
IARC monographs on the evaluation of carcinogenic risks to humans, 63, 409-429 (1995-01-01)
Binzhe Sun et al.
Bioresource technology, 196, 454-458 (2015-08-19)
A simple pretreatment method, NaOH swelling at a low temperature and then HCl regeneration, was developed for depolymerization of cellulose to glucose. Cellulose was transformed into amorphous hydrogel during the treatment; and due to the easy diffusion of H(+) and...
Mariusz Kuglarz et al.
Bioresource technology, 200, 639-647 (2015-11-10)
The aim of this study was to develop integrated biofuel (cellulosic bioethanol) and biochemical (succinic acid) production from industrial hemp (Cannabis sativa L.) in a biorefinery concept. Two types of pretreatments were studied (dilute-acid and alkaline oxidative method). High cellulose...
Inmaculada Romero et al.
Bioprocess and biosystems engineering, 38(8), 1469-1478 (2015-03-31)
The growing interest on rape oil as raw material for biodiesel production has resulted in an increasing availability of rape straw, an agricultural residue that is an attractive renewable source for the production of second-generation bioethanol. Pretreatment is one of...
M Arivazhagan et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 104, 14-25 (2013-01-01)
The FTIR and FT-Raman spectra of 5-nitro-2-furaldehyde oxime (NFAO) have been recorded in the regions 4000-400 cm(-1) and 3500-50 cm(-1), respectively. The total energies of different conformations have been obtained from DFT (B3LYP) with 6-311++G(d,p) basis set calculations. The computational...
Johan O Westman et al.
Applied and environmental microbiology, 80(22), 6908-6918 (2014-08-31)
Yeast has long been considered the microorganism of choice for second-generation bioethanol production due to its fermentative capacity and ethanol tolerance. However, tolerance toward inhibitors derived from lignocellulosic materials is still an issue. Flocculating yeast strains often perform relatively well...
Martin Holm Rau et al.
BMC genomics, 16, 1051-1051 (2015-12-15)
Bacterial small RNAs (sRNAs) are recognized as posttranscriptional regulators involved in the control of bacterial lifestyle and adaptation to stressful conditions. Although chemical stress due to the toxicity of precursor and product compounds is frequently encountered in microbial bioprocessing applications...
Nicolas Brun et al.
ChemSusChem, 6(4), 701-710 (2013-03-16)
Carbon-based monoliths have been designed using a simple synthetic pathway based on using high internal phase emulsion (HIPE) as a soft template to confine the polymerization and hydrothermal carbonization of saccharide derivatives (furfural) and phenolic compounds (phloroglucinol). Monosaccharides can be...
Xuan Wang et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(10), 4021-4026 (2013-02-23)
Pretreatments such as dilute acid at elevated temperature are effective for the hydrolysis of pentose polymers in hemicellulose and also increase the access of enzymes to cellulose fibers. However, the fermentation of resulting syrups is hindered by minor reaction products...
Rosa Perestrelo et al.
Journal of chromatography. A, 1381, 54-63 (2015-01-27)
An improved, reliable and powerful analytical strategy based on digitally controlled microextraction by packed sorbent (MEPS) combined with ultrahigh pressure liquid chromatography (UHPLC) was validated for the simultaneous identification and quantification of major furanic derivatives, namely 5-hydroxymethyl-2-furaldehyde (5HMF), 5-methyl-2-furaldehyde (5MF)...
Amal Agila et al.
Journal of food science, 78(2), C184-C191 (2013-01-22)
High fructose corn syrup (HFCS) was added at 5% to 40% to Indiana wildflower honey and added at 40% to Ohio and Indiana honeys from blueberry, star thistle, clover and wildflower, and an unknown source to simulate honey adulteration. Unadulterated...
Cristina García-Sancho et al.
ChemSusChem, 6(4), 635-642 (2013-03-21)
A series of silica-based MCM-41-supported niobium-oxide catalysts are prepared, characterized by using XRD, N2 adsorption-desorption, X-ray photoelectron spectroscopy, Raman spectroscopy, and pyridine adsorption coupled to FTIR spectroscopy, and tested for the dehydration of D-xylose to furfural. Under the operating conditions...
Lilong Zhou et al.
Bioresource technology, 129, 450-455 (2012-12-26)
A new kind of bifunctional ionic liquid catalysts was synthesized to degrade microcrystalline cellulose in [BMIM]Cl at atmospheric pressure. The effects of reaction temperature, amount of catalysts, reaction time, ionic liquid purity and cellulose concentration on conversion were investigated. At...
Yu Shen et al.
Journal of industrial microbiology & biotechnology, 41(11), 1637-1645 (2014-09-30)
The phenolic compounds present in hydrolysates pose significant challenges for the sustainable lignocellulosic materials refining industry. Three Saccharomyces cerevisiae strains with high tolerance to lignocellulose hydrolysate were obtained through ethyl methanesulfonate mutation and adaptive evolution. Among them, strain EMV-8 exhibits...
Le Gao et al.
Biotechnology for biofuels, 8, 194-194 (2015-12-18)
Algal biomass, known as a potential feedstock for biofuel production, has cell wall structures that differ from terrestrial biomass. The existing methods for processing algae are limited to conventional pretreatments for terrestrial biomass. In this study, we investigated a novel...
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