Search Within
Applied Filters:
关键词:'447536'
显示 1-26 共 26 条结果 关于 "

447536

" within 论文
Microwave-assisted selective acetylation of Kraft lignin: Acetic acid as a sustainable reactant for lignin valorization.
de Oliveira, et al.
International Journal of Biological Macromolecules, 164, 1536-1544 (2021)
Chengke Zhao et al.
International journal of biological macromolecules, 152, 411-417 (2020-02-26)
Soda process is one of the most important pulping processes in paper industry producing large quantities of alkali lignins that can afford plenty of biofuels, aromatic chemicals and materials. However, the structural and size-related heterogeneities and complexities hinder the development...
Dong Tian et al.
Biotechnology for biofuels, 10, 192-192 (2017-07-28)
Although conversion of low value but high-volume lignin by-product to its usable form is one of the determinant factors for building an economically feasible integrated lignocellulose biorefinery, it has been challenged by its structural complexity and inhomogeneity. We and others...
Simone Cailotto et al.
ChemSusChem, 13(17), 4759-4767 (2020-07-23)
The preparation of nanoparticles represents a powerful tool for lignin valorization, as it combines easy methodologies with high application potential. Different synthetic strategies and various lignin sources have been employed in the process. However, the great variability in the lignin...
Kraft lignin-based rigid polyurethane foam
Li Y and Ragauskas AJ
J. Wood Chem. Technol., 32(3), 210-224 (2012)
Guo, Y.; Sulikowski, G. A.,
Journal of the American Chemical Society, 120, 1392-1392 (1998)
Wenxiang Xuan et al.
Biomolecules, 10(7) (2020-07-24)
Dual-functioning additives with plasticizing and antibacterial functions were designed by exploiting the natural aromatic compound eugenol and green platform chemical levulinic acid or valeric acid that can be produced from biobased resources. One-pot synthesis methodology was utilized to create three...
Antoine Duval et al.
Journal of agricultural and food chemistry, 64(8), 1751-1760 (2016-02-09)
Condensed tannins from Acacia catechu were carefully studied to determine their chemical structure and physicochemical properties. The combined use of MALDI-TOF-MS and (13)C NMR revealed that catechin and epicatechin are the predominant monomers. Most of the compounds were dimers, as...
Characterization of CO2 precipitated Kraft lignin to promote its utilization
Nagy M, et al.
Green Chemistry, 12(1), 31-34 (2010)
Synthesis of complex carbohydrates and glycoconjugates: enzyme-based and programmable one-pot strategies.
K M Koeller et al.
Chemical reviews, 100(12), 4465-4494 (2001-12-26)
null
Chiara Allegretti et al.
Molecules (Basel, Switzerland), 25(12) (2020-06-27)
Technical lignins, typically obtained from the biorefining of lignocellulosic raw materials, represent a highly abundant natural aromatic feedstock with high potential in a sustainable economy scenario, especially considering the huge primary production volumes and the inherently renewable nature of this...
Analysis of the functional group composition of the spruce and birch phloem lignin.
Faleva, et al.
International Journal of Biological Macromolecules, 166, 913-922 (2021)
One-pot synthesis of 2-deoxy-β-oligosaccharides
Pongdee R, et al.
Organic Letters, 3(22), 3523-3525 (2001)
Angelov, C. M.; Dahl, O.
Tetrahedron Letters, 24, 1643-1643 (1983)
Dong Tian et al.
International journal of biological macromolecules, 142, 288-297 (2019-10-09)
This work tailored a promising two-step pretreatment, i.e., liquid hot water extraction followed by mild acidic deep eutectic solvents pretreatment for clean lignocellulose fractionation while enhancing cellulose reactivity for its subsequent utilization. The abilities of three acidic deep eutectic solvents...
Formaldehyde-free self-polymerization of lignin-derived monomers for synthesis of renewable phenolic resin.
Yang, et al.
International Journal of Biological Macromolecules, 166, 1312-1319 (2021)
Lucía Penín et al.
Molecules (Basel, Switzerland), 25(2) (2020-01-24)
Eucalyptus nitens wood samples were subjected to consecutive stages of hydrothermal processing for hemicellulose solubilization and delignification with an ionic liquid, i.e., either 1-butyl-3-methylimidazolium hydrogen sulfate or triethylammonium hydrogen sulfate. Delignification experiments were carried out a 170 C for 10-50...
MengTing Zhu et al.
Food chemistry, 321, 126640-126640 (2020-04-06)
The oxidation of cold-pressed and commercial refined camellia oil stored at room temperature for one year was comparatively studied by 1H and 31P NMR spectroscopy. The oxidation of extra virgin olive oil (EVOO) under the same conditions was further compared....
Pietro Buono et al.
ChemSusChem, 10(5), 984-992 (2017-01-04)
In the present report an environmentally friendly approach to transforming renewable feedstocks into value-added materials is proposed. This transformation pathway was conducted under green conditions, without the use of solvents or catalyst. First, controlled modification of lignin, a major biopolymer...
Ting Yang Nilsson et al.
ChemSusChem, 8(23), 4081-4085 (2015-10-29)
Lignin derivatives, which arise as waste products from the pulp and paper industry and are mainly used for heating, can be used as charge storage materials. The charge storage function is a result of the quinone groups formed in the...
Yuhe Liao et al.
Science (New York, N.Y.), 367(6484), 1385-1390 (2020-02-15)
The profitability and sustainability of future biorefineries are dependent on efficient feedstock use. Therefore, it is essential to valorize lignin when using wood. We have developed an integrated biorefinery that converts 78 weight % (wt %) of birch into xylochemicals....
Ethanol organosolv lignin-based rigid polyurethane foam reinforced with cellulose nanowhiskers
Li Y and Ragauskas AJ
Royal Society of Chemistry Advances, 2(8), 3347-3351 (2012)
Nontemplate-dependent polymerization processes: polyhydroxyalkanoate synthases as a paradigm
Stubbe J, et al.
Annual Review of Biochemistry, 74(22), 433-480 (2005)
Zafer Söyler et al.
ChemSusChem, 10(1), 182-188 (2016-11-23)
The transesterification of maize starch with olive oil or high oleic sunflower oil was studied under homogeneous conditions in the presence of 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) as catalyst. Most importantly, this method used two renewable resources directly, without any pretreatment or derivatization...
Maria Karlsson et al.
ChemSusChem, 13(17), 4666-4677 (2020-06-13)
As part of the continuing efforts in lignin-first biorefinery concepts, this study concerns a consolidated green processing approach to obtain high yields of hemicelluloses and lignin with a close to native molecular structure, leaving a fiber fraction enriched in crystalline...