Academic literature on the topic 'Ethylphenol'
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Journal articles on the topic "Ethylphenol"
Betz, Richard, Peter Klüfers, and Peter Mayer. "4-Ethylphenol." Acta Crystallographica Section E Structure Reports Online 65, no. 3 (February 18, 2009): o544. http://dx.doi.org/10.1107/s1600536809005108.
Full textWöhlbrand, Lars, Heinz Wilkes, Thomas Halder, and Ralf Rabus. "Anaerobic Degradation of p-Ethylphenol by “Aromatoleum aromaticum” Strain EbN1: Pathway, Regulation, and Involved Proteins." Journal of Bacteriology 190, no. 16 (June 6, 2008): 5699–709. http://dx.doi.org/10.1128/jb.00409-08.
Full textMajer, Sean H., and Joseph M. Tanski. "4-Chloro-3-ethylphenol." Acta Crystallographica Section E Structure Reports Online 70, no. 7 (June 21, 2014): o801. http://dx.doi.org/10.1107/s1600536814013919.
Full textZhou, Peizheng, and Billy L. Crynes. "Thermolytic reactions of o-ethylphenol." Industrial & Engineering Chemistry Process Design and Development 25, no. 4 (October 1986): 898–907. http://dx.doi.org/10.1021/i200035a011.
Full textReeve, C. D., M. A. Carver, and D. J. Hopper. "Stereochemical aspects of the oxidation of 4-ethylphenol by the bacterial enzyme 4-ethylphenol methylenehydroxylase." Biochemical Journal 269, no. 3 (August 1, 1990): 815–19. http://dx.doi.org/10.1042/bj2690815.
Full textBAŠA ČESNIK, Helena, and Klemen LISJAK. "Volatile phenolics in Teran PTP red wine." Acta agriculturae Slovenica 107, no. 1 (April 6, 2016): 5. http://dx.doi.org/10.14720/aas.2016.107.1.01.
Full textJones, K. H., P. W. Trudgill, and D. J. Hopper. "4-Ethylphenol metabolism by Aspergillus fumigatus." Applied and Environmental Microbiology 60, no. 6 (1994): 1978–83. http://dx.doi.org/10.1128/aem.60.6.1978-1983.1994.
Full textTakahashi, Mika, Mutsuko Hirata-Koizumi, Nobuo Nishimura, Yoshihiko Ito, Masao Sunaga, Sakiko Fujii, Eiichi Kamata, Ryuichi Hasegawa, and Makoto Ema. "Susceptibility of newborn rats to 3-ethylphenol and 4-ethylphenol compared with that of young rats." Congenital Anomalies 46, no. 1 (March 2006): 26–33. http://dx.doi.org/10.1111/j.1741-4520.2006.00098.x.
Full textQiu, Zegang, Ying Wang, Yali Di, Xiaoxiong Ren, Weiwei Liu, Zhiqin Li, and Guangyu Li. "One-step conversion of lignin-derived alkylphenols to light arenes by co-breaking of C–O and C–C bonds." New Journal of Chemistry 46, no. 6 (2022): 2710–21. http://dx.doi.org/10.1039/d1nj05793f.
Full textRenaud, Alexis, Yoann Paint, Alex Lanzutti, Leïla Bonnaud, Lorenzo Fedrizzi, Philippe Dubois, Marc Poorteman, and Marie-Georges Olivier. "Sealing porous anodic layers on AA2024-T3 with a low viscosity benzoxazine resin for corrosion protection in aeronautical applications." RSC Advances 9, no. 29 (2019): 16819–30. http://dx.doi.org/10.1039/c9ra01970g.
Full textDissertations / Theses on the topic "Ethylphenol"
Fernandes, Miguel Tiago Nunes. "Studies on the wine spoilage yeast Brettanomyces bruxellensis: 4-ethylphenol production and improved detection." Master's thesis, Faculdade de Ciências e Tecnologia, 2013. http://hdl.handle.net/10362/10986.
Full textBrettanomyces bruxellensis is a major threat to wine industry due to its spoilage ability characterized by high production of volatile phenols, mainly 4-ethylphenol. The horse sweat odor, characteristic of this phenol, causes large economic losses to wineries. A better understanding of the behavior of this yeast and better detection methods may lead to a decrease in 4-ethylphenol incidence in red wines worldwide. In the present work, we studied: (i) the ability of B. bruxellensis to enter the viable but nonculturable state by using both vital staining and plate counts to distinguish between viable and culturable cells; (ii) the production of 4-ethylphenol at different growth phases; (iii) the improvement of selective culture media; (iv) the application of a Real-Time PCR protocol for the rapid detection of B. bruxellensis. The existence of a viable but nonculturable state was evidenced during growth in synthetic medium ranging from 2% in strain ISA 2211 to 71% in strain ISA 1791 of the viable cells. The production rate of 4-ethylphenol was maximum when the precursor p-coumaric acid was added during exponential growth and decreased in stationary phase with incubation time. The developed selective medium presented recovery rates higher than the general purpose medium GYP and selectivity similar to DBDM. Response time lasted from 3 to 5 days while DBDM colonies appeared only after 12 days or more of incubation. Real-Time PCR showed to be an easy and faster method for a highly selective detection, taking 3 hours to obtain a positive response. The detection threshold was 700 cells/mL which may be decreased using sample concentration by centrifugation. However, results were 3.7 times higher than the viable counts, probably due to the DNA of dead or lysed cells. Collectively, this work represented a step forward in understanding the spoiling behavior of this yeast species and enabled the development of better detection methods for B. bruxellensis.
Reis, Marta Lopes Egídio. "Efeito do quitosano na viabilidade de Brettanomyces bruxellensis e na produção de 4-etilfenol em vinho." Master's thesis, ISA, 2014. http://hdl.handle.net/10400.5/6878.
Full textThe spoilage yeast, Brettanomyces bruxellensis, can cause the formation of film in storage wine, sediments, gas production and the production of unpleasant tastes and flavors to the consumer. Chitosan is presented as a potential product to control the yeast that alter the wine. Under laboratory conditions the effect of chitosan at different concentrations was tested in the growth of various B. bruxellensis strains in synthetic medium and wine. Viability was followed in plate with GYP medium, by hemocytometer counting with vital staining. Production of 4-ethylphenol was also analyzed. In synthetic medium it was possible to control the growth with 1 g/L of chitosan. In wine the necessary concentrations were lower, because it is a more stressful environment. With lower concentrations and with poorly adapted cells it was possible to control, the growth of the strains tested with 0,1 g/L and 0,05 g/L. However, when chitosan is added after the exponential phase, it is only possible to control the growth with 0,5 g/L. The production of 4-ethiphenol only reached significant values, over 800μg/L, on the wine trial with well adapted cells. The results in this trial show that the effect of chitosan is dependent of the strain, cellular concentration, growth stage of the cells and that the production of 4-ethylphenol was significant only in wine with well adapted cells. The usage of chitosan has no effect on the VBNC stage of the cells.
Copp, Clinton W. "Production and Degradation of 4-Ethylphenol in LACTOBACILLUS SP. pep8 Cultures and in Blended Swine Lagoon Enrichments." TopSCHOLAR®, 2012. http://digitalcommons.wku.edu/theses/1189.
Full textKeskin, Mehmet Yigit. "Studies on the incidence of Dekkera bruxellensis in Turkish wines and effect of low temperatures on 4-ethylphenol production." Master's thesis, ISA/UL, 2012. http://hdl.handle.net/10400.5/8596.
Full textBrettanomyces/Dekkera bruxellensis has the ability to produce significant amounts of 4-ethylphenol (4-EP) and cause important organoleptic defects in affected wines. In this work we investigated the incidence of B. bruxellensis and of 4-ethylphenol in Turkish red wines randomly collected at winery facilities. Among 40 samples, this species was only recovered from one sample aged in oak barrels. In 4 samples, culturable population was not found but the 4-EP concentration indicated previous Dekkera bruxellensis activity. Thus, following potential Brettanomyces-sourced aroma impacts in wine using 4-Ethylphenol and 4-Ethylguaiacol concentrations as proxies should only be considered reliable at analyte levels >100 μg/l (Rayne and Eggers, 2007). Furthermore, we studied the influence of storage temperature on the production of 4-EP by wild of D. bruxellensis in 3 different Portuguese red wines. Temperatures of 10 ºC and 15ºC were not effective in preventive the increase of 4-EP over 600 μg/l during 90 days. At 3 ºC one sample showed similar 4-EP increase while in two other samples its concentration was kept unchanged. Production of 4-EP at 3ºC and 10ºC was confirmed when the strain TR 26 was incubated in red wine for 49 days. However, the total amount of 4-EP produced was below 150 μg/l while at 15ºC and 20ºC the values reached 1600 μg/l. Therefore, the effect of low temperatures acts by delaying microbial growth which results in lower concentrations of 4-EP but once temperature increases 4-EP production is readily stimulated
Oro, Inês Correia Horta Lazo. "Avaliação do crescimento de leveduras de alteração em vinhos utilizando a metodologia de superficies de resposta." Master's thesis, ISA, 2014. http://hdl.handle.net/10400.5/7068.
Full textThis study aimed to understand the effects of different factors on the growth of spoilage yeasts in red wine and consequent production of metabolites using response surface methodology. The combination of the effects of glucose, ethanol and free sulfur dioxide on the growth of various species of yeast change (Zygosaccharomyces bailii, Schizosaccharomyces pombe, Dekkera / Brettanomyces bruxellensis, Saccharomycodes ludwigii , Saccharomyces cerevisiae) was studied using the method of response surfaces for 60 days at 25 ° C. The initial composition of red wine used in the experiments ranged 2-10 g/L glucose, 10 - 15% (v/v) ethanol and 0 - 40 mg/L of free sulphur dioxide. The results showed that the strain Saccharomyces ludwigii tested is the most resistant to ethanol and free sulfur dioxide in constrast to the most susceptible, Dekkera bruxellensis. The influence of glucose on the growth was not statistically significant, and there was no direct relationship between the production of 4- ethylphenol and glucose consumption. Furthermore, when the cells were inactivated, specially Dekkera bruxllensis, by sulphur dionxide and ethanol, glucose didn’t increase the wine susceptibility.
Pradelles, Rémi. "Etude des capacités de biosorption des levures vis-à-vis du 4-ethylphenol et de la (-)geosmine : deux molécules d'altération du vin." Dijon, 2009. http://www.theses.fr/2009DIJOS028.
Full textPresence of 4-ethylphenol and (-)geosmin in a wine impose organoleptic deviations that are described as “horse sweat” and “earthy” or “mouldy”. Their microbiological origin and their very low perception threshold cause important problems in winemaking quality management. Enological yeasts that are responsible for alcoholic fermentation are potential sorbant materials. This property was discovered during works about wine aging on lees. In this work we have studied yeast biosorption capacities for 4-ethylphenol and (-)geosmin in a synthetic model wine. Studies on the influence of yeast strain, culture medium and post-harvest processes applied to biomass (autolysis, atomisation drying, spray-drying, salt-drying and rehydration) lead to show that these parameters are determinant for sorption capacities because of the changes in structure and/or composition of yeast surface. The caracterisation of sorption properties of mutant strains that were deleted of genes coding for key wall proteins, confirmed that wall structure is of major importance in sorption phenomenon. Moreover measurements of physico-chemical properties of yeast wall (hydrophobicity, electron-donnor caracter, zeta potential) and their caracterisation by ATR-FTIR before and after sorption, show that wall components and membrane are implied in sorption and that they differ according to the sorbed molecule
Heuchel, Moritz [Verfasser], and Yvonne [Akademischer Betreuer] Traa. "Co-catalytic cracking of n-decane and 2-ethylphenol as model hydrocarbons for fossil- and bio-based feeds in FCC over zeolite catalysts / Moritz Heuchel ; Betreuer: Yvonne Traa." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2018. http://d-nb.info/1156902037/34.
Full textKheir, Joyce. "Evaluation du risque Brettanomyces dans le vignoble libanais et étude cinétique de la bioconversion de l'acide p-coumarique en 4-éthylphénol." Phd thesis, Toulouse, INPT, 2012. http://oatao.univ-toulouse.fr/8929/1/kheir.pdf.
Full textHixson, Josh L. "Chemistry of hydroxycinnamate esters and their role as precursors to Dekkera produced off-flavour in wine." Thesis, 2012. http://hdl.handle.net/2440/76099.
Full textThesis (Ph.D.) -- University of Adelaide, School of Agriculture, Food and Wine, 2012
Wang, Yong-Siang, and 王詠翔. "Synthesis, Physical and Optoelectronic Behaviors of Ethylphenyl Fulleropyrrolidines." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/389588.
Full text國立臺北科技大學
有機高分子研究所
101
Fullerenes have been widely utilized as the electron acceptor material in polymer solar cells because they possess good electron affinity ability and high electron mobility. To resolve the poor solubility problem of our previously synthesized fullerene derivatives NMPC, in this study, we further design a new series of fulleropyrrolidine derivatives, including NMPEC, NPPEC, NiPPPEC, NHPEC, NEHPEC, NiPTPEC, and NCHPEC, with excellent solubility in common organic solvent. The molecular structure of these fullerene derivatives was characterized by 1H NMR, 13C NMR, MALDI-TOF MS and elemental analysis (EA). UV-Vis was employed to determine their optical band gap and solubility. CV was applied to resolve the LUMO of C60 derivatives. However, as this series of fullerene derivatives was used as electron acceptor to fabricate conventional poly(3-hexylthiophene-based bulk-heterojunction solar cells, abnormal S-shaped current-voltage (I-V) curves were observed due to the formation of fullerene-rich layer between hole transport and photoactive blend. Consequently, the inverted cell structure gives nice I-V curves for all fulleropyrrolidines synthesized herein with a power conversion efficiency of ~3%, demonstrating they can be utilized as effective acceptor material in inverted polymer solar cells.
Book chapters on the topic "Ethylphenol"
Wohlfarth, Ch. "Dielectric constant of 4-ethylphenol." In Supplement to IV/6, 430. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-75506-7_257.
Full textWohlfarth, Ch. "Dielectric constant of the mixture (1) methanol; (2) 4-ethylphenol." In Supplement to IV/6, 788–89. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-75506-7_462.
Full textMclntire, William S., and Craig Bohmont. "The chemical and stereochemical course of oxidation of 4- ethylphenol and other 4-alkylphenols by ^-cresol methylhydroxylase." In Flavins and Flavoproteins 1987, edited by D. E. Edmondson and D. B. McCormick, 677–86. Berlin, Boston: De Gruyter, 1987. http://dx.doi.org/10.1515/9783110884715-113.
Full textWohlfarth, Ch. "Second virial coefficient of poly[(4-ethylphenoxy)(phenoxy)phosphazene]." In Polymer Solutions, 861–62. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-02890-8_535.
Full text"2,4-Dichloro-6-ethylphenol." In Halogenated Benzenes, Toluenes and Phenols with Water, 240–41. Elsevier, 1985. http://dx.doi.org/10.1016/b978-0-08-023926-2.50064-7.
Full text"4-Chloro-3-methyl-5-ethylphenol." In Halogenated Benzenes, Toluenes and Phenols with Water, 250–51. Elsevier, 1985. http://dx.doi.org/10.1016/b978-0-08-023926-2.50069-6.
Full textHixson, Josh L., Chris D. Curtin, Mark A. Sefton, and Dennis K. Taylor. "Stereospecificity of D. bruxellensis in the Production of Ethylphenol Off-Flavor in Wine." In Flavour Science, 183–87. Elsevier, 2014. http://dx.doi.org/10.1016/b978-0-12-398549-1.00035-0.
Full text"Zinc ethylphenyl dithiocarbamate." In Toxological Evaluations, 381–98. Berlin, Heidelberg: Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-642-60280-1_12.
Full text"Table IV: Volatile compounds identified in the dust of swine confinement units Hydrocarbons Ketones Hexane 1) Acetone 4) «t-Pinen 1) Butanone 4) Limonen 1) Pentanone 4) 3,7,7-Trimethyl -Octanone 4) bicyclo (3,1,1)-l-0ctene-3-one 4) 2-Hepten 1) Benzene 1) Acids Toluene 1) Acetic 4)5)6) Alcohols Propionic 4)5)6) i-Butyric 1)5)6) 1-Pentanol 1) Butyric 4)5)6) 1-Heptanol 1) 1-Valeric 5)6) 4-Methylcyclo-Valeric 4)5)6) hexanol 1) Hexanoic 4)5) 2-Ethylhexanol 1) Heptanoic 4) Octanoic 4) Phenols Nonanoic 4) Decanoic 4) Phenol 1)3)6) Undecanoic 4) p-Cresol 3)4)6) Dodecanoic 4) o-Cresol 1) Laurie 3) p-Ethylphenol 3)6) Tridecanoic 4) o-Ethylphenol 4) Tetradecanoic 4) m-Ethylphenol 4) Benzoic 4) Phenyl acetic 3)4) Indoles 3-Phenyl propionic 3) Hydrocinnamic 4) Indole 2)6) Skatole 2)3)6) Miscellaneous Compounds Aldehydes 2-Pentylfuran 3) Vanillin 3) Butanal 4) 2-Butenal 4) Pentanal 4) 2-Pentenal 4) Hexanal 1)3)4) 1) = WEURMAN (13) 2-Hexenal 4) 2) = TRAVIS and ELLIOTT (31) Heptanal 1)3) 2-Heptenal 4) 3) = HAMMOND et al. (30) 2.4-Heptadienal 3)4) 4) = HAMMOND et al. (40) Nonanal 3) 2-Nonenal 3) 5) = AENGST (33) 2.4-Nonadienal 3)4) 6) = HARTUNG (34) Decanal 4) 2.4-Decadienal 3)4) Benzaldehyde 1)4)." In Odour Prevention and Control of Organic Sludge and Livestock Farming, 344. CRC Press, 1986. http://dx.doi.org/10.1201/9781482286311-138.
Full textConference papers on the topic "Ethylphenol"
Lopez, Juan, Susana Blanco, Alberto Macario, and Fernando Gonzalez. "TRANSIENT CHIRALITY AND MICROSOLVATION IN p-ETHYLPHENOL." In 2022 International Symposium on Molecular Spectroscopy. Urbana, Illinois: University of Illinois at Urbana-Champaign, 2022. http://dx.doi.org/10.15278/isms.2022.te02.
Full textdel Valle, Manel, Anna Herrera-Chacon, and Andreu González-Calabuig. "Comparative study of two Electronic Tongues for the detection of ethylphenols by MIP-based and chemically modified voltammetric sensors." In 7th International Electronic Conference on Sensors and Applications. Basel, Switzerland: MDPI, 2020. http://dx.doi.org/10.3390/ecsa-7-08237.
Full textSingh, Jagvir, Kamelesh Kumari, Prashant Singh, Gopal K. Mehrotra, and Netra Pal Singh. "Synthesis of metal-Bis(N-(3-ethylphenyl)-pyridine-2-acetyl-hydrazine complexes and evaluation of their magnetic and antimicrobial activity." In FUNCTIONAL MATERIALS: Proceedings of the International Workshop on Functional Materials (IWFM-2011). AIP, 2012. http://dx.doi.org/10.1063/1.4736927.
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