Elias Aliu, Abarasi Hart, Joseph Wood,
... oxygenated phenolic compound found in bio-oil to creosol. It investigates the sensitivity of vanillin HDO reaction ... with conversion close to 100 % and selectivity toward creosol above 90 %. Remarkable differences were found in the ... among the monometallic catalysts with 71 % selectivity toward creosol, but consumed 9 mmol of hydrogen per mol ... 8 mmol), and produced significantly higher selectivity toward creosol (99 %). Even after three cycles the prepared catalyst ... performance over the monometallic catalysts with selectivity toward creosol above 80 %. The reaction condition that maximises the ...
Tópico(s): Catalysis and Hydrodesulfurization Studies
2020 - Elsevier BV | Catalysis Today
Robert H. H. van den Heuvel, W. van den Berg, Stefano Rovida, Willem J. H. van Berkel,
... mutagenesis to generate mutants with enhanced reactivity to creosol (2-methoxy-4-methylphenol). The vanillyl-alcohol oxidase-mediated conversion of creosol proceeds via a two-step process in which ... the formation of a covalent FAD N-5-creosol adduct. After a single round of error-prone ... seven mutants were generated with increased reactivity to creosol. The single-point mutants I238T, F454Y, E502G, and ... fold increase in catalytic efficiency (kcat/Km) with creosol compared with the wild-type enzyme. This enhanced ...
Tópico(s): Biochemical Acid Research Studies
2004 - Elsevier BV | Journal of Biological Chemistry
Heather A. Meylemans, Benjamin G. Harvey, Josiah T. Reams, Andrew J. Guenthner, Lee R. Cambrea, Thomas J. Groshens, Lawrence C. Baldwin, Michael D. Garrison, Joseph M. Mabry,
... synthesized by condensation of 2-methoxy-4-methylphenol (creosol) with formaldehyde, acetaldehyde, and propionaldehyde. The cyanate esters ... 174 to 193 °C. These properties suggest that creosol-derived cyanate esters may be useful for a ... type may potentially be recycled to parent phenols, creosol, and other alkylated creosols by pyrolysis in the presence of excess water ... synthesize these high temperature resins from a phenol (creosol) that can be derived from lignin, coupled with ...
Tópico(s): Polymer composites and self-healing
2013 - American Chemical Society | Biomacromolecules
Robert H. H. van den Heuvel, Marco W. Fraaije, Colja Laane, Willem J. H. van Berkel,
... wide range of phenolic compounds and converts both creosol and vanillylamine to vanillin with high yield. The VAO-mediated conversion of creosol proceeds via a two-step process in which ... an abortive complex between enzyme-bound flavin and creosol. Moreover, in the second step of the process, ... alcohol is inhibited by the competitive binding of creosol. The VAO-catalyzed conversion of vanillylamine proceeds efficiently ... can be hydrolyzed enzymatically to vanillylamine. Keywords: Capsaicin; creosol; flavoprotein; vanillin; vanillyl alcohol oxidase; vanillylamine
Tópico(s): Fermentation and Sensory Analysis
2001 - American Chemical Society | Journal of Agricultural and Food Chemistry
Bo Yang, Haixu Zhang, Youfeng Wang, Peng Zhang, Jinian Shu, Wanqi Sun, Pengkun Ma,
... reactivity, however, has not been well characterized. Guaiacol, creosol, and syringol are three typical methoxyphenols generated in ... 6-nitrocreosol and 3-nitrosyringol were identified for creosol and syringol, respectively. Using the relative rate method, ... atm for the gas-phase reactions of guaiacol, creosol, and syringol with NO3 radicals were measured to ... 108 molecule cm−3), atmospheric lifetimes for guaiacol, creosol, and syringol toward NO3 radicals were 0.2, ...
Tópico(s): Air Quality and Health Impacts
2015 - Elsevier BV | Atmospheric Environment
Ismaila Mudi, Abarasi Hart, A. Ingram, Joseph Wood,
... oxygenated phenolic compound present in bio-oil, into creosol. Biochar residue generated when wood is slowly pyrolyzed ... to 97% with 91.17% selectivity to p-creosol was obtained over Ni/biochar catalyst; in addition to being highly selective and active for p-creosol, a plausible fuel, the catalyst was stable after ... performance in terms of vanillin conversion and p-creosol yield in the order Ni/biochar (H2SO4) > Ni/ ...
Tópico(s): Lignin and Wood Chemistry
2023 - Multidisciplinary Digital Publishing Institute | Catalysts
Mark J.W. Dignum, Rob van der Heijden, Josef Kerler, Chris Winkel, Robert Verpoorte,
... the overall vanilla aroma, minor compounds p-cresol, creosol, guaiacol and 2-phenylethanol have a high impact. ... acid, p-hydroxy benzaldehyde, vanillyl alcohol, p-cresol, creosol and bis[4-(β-d-glucopyranosyloxy)-benzyl]-2- ... mM. For other glucosides (vanillic acid, guaiacol and creosol) the Km-values were higher (>20 mM). The ...
Tópico(s): Fermentation and Sensory Analysis
2003 - Elsevier BV | Food Chemistry
Heather A. Meylemans, Thomas J. Groshens, Benjamin G. Harvey,
... series of renewable bisphenols has been synthesized from creosol (2‐methoxy‐4‐methylphenol) through stoichiometric condensation with short‐chain aldehydes. Creosol can be readily produced from lignin, potentially allowing ...
Tópico(s): Carbon dioxide utilization in catalysis
2011 - Wiley | ChemSusChem
Norio Ogata, Nobuyuki Matsushima, Takashi Shibata,
... guaiacol 32 mg, p-cresol 18 mg and creosol 24 mg) were found in peripheral venous blood ... urine, mostly as glucuronic acid and, except for creosol, as sulfate conjugates. Low concentrations of unconjugated phenols ... mg/l for phenol, guaiacol, p-cresol and creosol, respectively. The 24-hour urinary recoveries of the ...
Tópico(s): Hops Chemistry and Applications
1995 - Karger Publishers | Pharmacology
Shahram Alijani, Sofia Capelli, Claudio Evangelisti, Laura Prati, Alberto Villa, Stefano Cattaneo,
... to vanillyl alcohol and the subsequent hydrodeoxygenation to creosol. Pd nanoparticles were synthesised by sol immobilisation technique ... groups on the support surface. Full conversion to creosol was obtained with all the catalysts in short reaction times (Pd/G60, creosol yield > 99.5 %) and in mild reaction conditions. ...
Tópico(s): Catalysis and Hydrodesulfurization Studies
2020 - Elsevier BV | Catalysis Today
Yves‐René Naves, A. V. Grampoloff,
... essence provençale, de l'acide benzoïque libre, du créosol, de l'aldéhyde benzoïque, de l'α‐terpinéol, ... O. L'éther 2, 4‐dinitro‐phénylique du créosol, la 2,4‐dinitro‐phénylhydrazone de la jasmone, ...
Tópico(s): Horticultural and Viticultural Research
1942 - Wiley | Helvetica Chimica Acta
Paolo Da Re, Luigi Cimatoribus,
... an Acyl Group in the Fries Rearrangement of Creosol EstersPAOLO Da RE and LUIGI CIMATORIBUSCite this: J. ...
Tópico(s): Chemical Synthesis and Analysis
1961 - American Chemical Society | The Journal of Organic Chemistry
Christine Hagström-näsi, Eero Sjöström,
... an accelerated degradation of lignin. Separate experiments with creosol (2-methoxy-4-methylphenol) indicated that this effect ...
Tópico(s): Advanced oxidation water treatment
1988 - Taylor & Francis | Journal of Wood Chemistry and Technology
Josef Gierer, Torbjörn Reitberger,
Creosol and its methyl ether (4-methylveratrol), two simple model compounds representing phenolic and non-phenolic nuclei ...
Tópico(s): Radical Photochemical Reactions
1992 - De Gruyter | Holzforschung
Tomoo Kuge, Takashi Shibata, Michael S. Willett,
... of wood creosote: total (conjugated plus free) guaiacol, creosol, o‐cresol, and 4‐ethylguaiacol. The most common ... in a dose‐proportional manner for total guaiacol, creosol, and o ‐cresol and was not assessed for ...
Tópico(s): Travel-related health issues
2003 - Wiley | Pharmacotherapy The Journal of Human Pharmacology and Drug Therapy
Naomi Oyama‐Okubo, Masayoshi Nakayama, Kazuo Ichimura,
... terpenoids (linalool and cis-ocimene). In addition, p-creosol (aromatics) was detected as a minor component. Based ... impressions, we assumed that iso-eugenol and p-creosol were the main causes of the unpleasant odor. ...
Tópico(s): Plant Gene Expression Analysis
2011 - Japanese Society for Horticultural Science | Journal of the Japanese Society for Horticultural Science
Chen‐Lung Ho, Chai-Yi Lin, Shuk‐Man Ka, Ann Chen, Yu‐Ling Tasi, May-Lan Liu, Yi-Chich Chiu, Kuo‐Feng Hua,
... and protein kinase C-α/δ activation. Furthermore, creosol (2-methoxy-4-methylphenol) was indentified as the ... inflammasome activation was seen in mice treated with creosol. These findings provide insights into how BV regulates ...
Tópico(s): Immune Cell Function and Interaction
2013 - Public Library of Science | PLoS ONE
Phila Raharivelomanana, Christel Brunschwig, S. Rochard, Adeline Pierrat, Amélie Rouger, P. Senger-Emonnot, Gérard George,
... stronger phenolic, woody, smoky notes due to guaiacol, creosol and phenol, which were found to be biomarkers ... regression to key volatile compounds like guaiacol or creosol, which are indicators of lower quality. CONCLUSION This ...
Tópico(s): Essential Oils and Antimicrobial Activity
2015 - Wiley | Journal of the Science of Food and Agriculture
Shumaila Islam, Hazri Bakhtiar, Maisarah Duralim, Husni Hani Jameela Sapingi, Saira Riaz, Shahzad Naseem, Nurfatin Musa, Lau Pik Suan, Mundzir Abdullah,
... Three different pH dyes namely bromophenol blue (BPB), creosol red (CR) and phenol red (PR) are encapsulated ... encapsulation has crack-free and porous morphology. The creosol red encapsulated silica matrix (SiO2-CR) has small ...
Tópico(s): Advanced Fiber Optic Sensors
2018 - Elsevier BV | Sensors and Actuators A Physical
... the HDO of model compound (vanillin) to p-creosol. As the tube diameters of Ni/CCNTs-X ... with a concomitant 87.7% selectivity of p-creosol. The transformation pathway for the HDO of vanillin ...
Tópico(s): Lignin and Wood Chemistry
2018 - Elsevier BV | Bioresource Technology Reports
José Santos, Moldir Alda‐Onggar, Viacheslav Fedorov, Markus Peurla, Kari Eränen, Päivi Mäki‐Arvela, M.Á. Centeno, Dmitry Yu. Murzin,
... vanillyl alcohol further to its hydrogenolysis forming p-creosol. Both hydrogenation and hydrogenolysis were promoted by Pd/ ... rather high dispersion. The highest selectivity to p-creosol, 95% at complete vanillin conversion, was obtained with ...
Tópico(s): Lignin and Wood Chemistry
2018 - Elsevier BV | Applied Catalysis A General
Xiaoxiao Chen, Yanhui Sun, Youxiao Qi, Lin Liu, Fei Xu, Yan Zhao,
... The ozone-initiated oxidation of guaiacol, syringol and creosol, major constituents of biomass burning, were investigated theoretically ...
Tópico(s): Plant responses to elevated CO2
2019 - Multidisciplinary Digital Publishing Institute | International Journal of Molecular Sciences
... method. Three distinct pH dyes such as phenolphthalein, creosol red, and phenol red are immobilized in Z/ ... and more hydrophilic features than C-Z/ST (creosol red immobilized Z/ST), and HPh-Z/ST ( ...
Tópico(s): Conducting polymers and applications
2023 - Elsevier BV | Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy
Yinan Sun, Ze-Ying Zhou, Hao Jiang, Yuting Duan, Jialin Li, Xiaoqiu Liu, Lihua Hong, Chengji Zhao,
... BPA-free dimethacrylate monomers from bio-based material creosol were synthesized and evaluated. The renewable bisphenol monomer ... methylenedicreosol (BCF) was prepared from bio-based material creosol. By the human breast cancer cells (MCF-7 ...
Tópico(s): Polymer Synthesis and Characterization
2021 - Elsevier BV | Dental Materials
Toshihiro Komatsu, Tomoya Yokoyama,
... vanillyl alcohol, Va) and 2-methoxy-4-methylphenol (creosol, Cr) under soda cooking conditions. The α -5- ...
Tópico(s): Fermentation and Sensory Analysis
2021 - Springer Science+Business Media | Journal of Wood Science
Xiaoxiao Xie, Jian Ling, Zhenchuan Mao, Yan Li, Jianlong Zhao, Yuhong Yang, Yanlin Li, Mingyue Liu, Xingfang Gu, Bingyan Xie,
... these, (methoxymethyl)-benzene, could repel M. incognita, while creosol and (Z)-2-penten-1-ol could attract M. incognita. Interestingly, creosol and (Z)-2-penten-1-ol effectively killed ...
Tópico(s): Legume Nitrogen Fixing Symbiosis
2022 - Nature Portfolio | Horticulture Research
Toshihiro Komatsu, Tomoya Yokoyama,
... methoxyphenol (apocynol, Ap) and 2-methoxy-4-methylphenol (creosol, Cr). Ap was primarily converted to 2-methoxy- ...
Tópico(s): Enzyme-mediated dye degradation
2022 - Springer Science+Business Media | Journal of Wood Science
Toshihiro Komatsu, Tomoya Yokoyama,
... system using Va and 2-methoxy-4-methylphenol (creosol, Cr) under the same soda cooking conditions employed ...
Tópico(s): Fermentation and Sensory Analysis
2022 - Taylor & Francis | Journal of Wood Chemistry and Technology
F. Létumier, Erja Ämmälahti, Jussi Sipilä, Tapani Vuorinen,
... presence de 2-methoxy-4-methyl-phenol ou creosol dans des conditions proches de celles utilisees pour ... de Cannizzaro et de se condenser sur le creosol. Deux types d'additions nucleophiliques sont impliquees dans ...
Tópico(s): Biochemical and biochemical processes
2003 - | Journal of pulp and paper science
... la température du laboratoire, donne, à côté du créosol, une forte proportion de méthyl‐2‐dioxy‐4′, ...
Tópico(s): Chemical Synthesis and Reactions
1939 - Wiley | Helvetica Chimica Acta