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Showing 1-30 of 45 results for "W315605" within Papers
Carl Jenkinson et al.
Nutrition journal, 11, 67-67 (2012-09-11)
The metabolism and excretion of the anabolic steroid testosterone occurs by glucuronidation to the conjugate testosterone glucuronide which is then excreted in urine. Alterations in UGT glucuronidation enzyme activity could alter the rate of testosterone excretion and thus its bioavailability.
Deiene Garcia et al.
Journal of chromatography. A, 1410, 164-172 (2015-08-11)
A molecularly imprinted polymer (MIP) based methodology is described here for the determination of compounds that belong to the 4-ethylphenol (4EP) metabolic pathway in red wines. To this end, two MIP materials have been developed: a 4EP MIP as a
Removal of 4-Ethylphenol and 4-Ethylguaiacol with Polyaniline-Based Compounds in Wine-Like Model Solutions and Red Wine.
Carrasco-Sanchez V, et al.
Molecules (Basel), 20(8), 14312-14325 (2015)
Cynthia D Selassie et al.
Journal of medicinal chemistry, 48(23), 7234-7242 (2005-11-11)
In this comprehensive study on the caspase-mediated apoptosis-inducing effect of 51 substituted phenols in a murine leukemia cell line (L1210), we determined the concentrations needed to induce caspase activity by 50% (I50) and utilized these data to develop the following
S Benito et al.
Journal of applied microbiology, 106(5), 1743-1751 (2009-02-20)
The formation of ethylphenols in wines, a consequence of Dekkera/Brettanomyces metabolism, can affect their quality. The main aims of this work were to further our knowledge of Dekkera/Brettanomyces with respect to ethylphenol production, and to develop a methodology for detecting
Emil Fischer et al.
Canadian journal of physiology and pharmacology, 93(6), 459-464 (2015-05-06)
Luminal appearance of 4-nitrophenol (PNP) metabolites (4-nitrophenol-β-glucuronide (PNP-G) and 4-nitrophenol-sulfate (PNP-S)) and activity of the related metabolic enzymes have been investigated in control and experimental diabetic rats. Experimental diabetes was induced by administration of streptozotocin (65 mg/kg i.v.). PNP (500
Cyrille Sabot et al.
Chemical communications (Cambridge, England), (20)(20), 2941-2943 (2009-05-14)
A concise total synthesis of (+/-)-aspidospermidine has been achieved in twelve steps from inexpensive 4-ethylphenol, based on an oxidative Hosomi-Sakurai reaction via the concept of "aromatic ring umpolung".
Isa Silva et al.
International journal of food microbiology, 145(2-3), 471-475 (2011-02-19)
This work aimed to evaluate the effect of certain factors on the production of volatile phenols from the metabolism of p-coumaric acid by lactic acid bacteria (LAB) (Lactobacillus plantarum, L. collinoides and Pediococcus pentosaceus). The studied factors were: pH, L-malic
Susanne L Jensen et al.
Food microbiology, 26(8), 915-921 (2009-10-20)
Yeast isolates from commercial red wines were characterized with regards to tolerances to molecular SO(2), ethanol, and temperature as well as synthesis of 4-ethyl-phenol/4-ethyl-guaiacol in grape juice or wine. Based on rDNA sequencing, nine of the 11 isolates belonged to
Hajo Zech et al.
Proteomics, 11(16), 3380-3389 (2011-07-14)
Two-dimensional difference gel electrophoresis (2-D DIGE) allows for reliable quantification of global protein abundance changes. The threshold of significance for protein abundance changes depends on the experimental variation (biological and technical). This study estimates biological, technical and total variation inherent
Alfonso Pérez-Garrido et al.
Bioorganic & medicinal chemistry, 17(2), 896-904 (2008-12-06)
This paper reports a QSAR study for predicting the complexation of a large and heterogeneous variety of substances (233 organic compounds) with beta-cyclodextrins (beta-CDs). Several different theoretical molecular descriptors, calculated solely from the molecular structure of the compounds under investigation
Yueyuan Ye et al.
Bioresource technology, 118, 648-651 (2012-06-22)
Selective production of 4-ethylphenolics from lignin via mild hydrogenolysis was reported in this short communication. The hydrogenolysis of lignin was carried out in an autoclave with 65 vol.% ethanol/water as solvent, with 5% Ru/C, Pd/C and Pt/C as catalysts. The
Enbo Xu et al.
Journal of food science, 80(7), C1476-C1489 (2015-06-20)
Enzymatic extrusion, instead of traditional steam cooking, to treat rice is an efficient and alternative pretreatment for Chinese rice wine fermentation. In order to determine the formation of volatiles in enzymatic extrusion-processed rice wine (EE), and to confirm its characteristic
Saori Ishizaka et al.
Journal of equine science, 25(4), 65-72 (2015-01-06)
The effects of probiotics on horses are still controversial. The present study was a randomized, double-blinded, placebo-controlled crossover study designed to evaluate the ability of probiotics to improve intestinal conditions in adult horses. Fermented probiotics were administered to 10 healthy
Ravindra W Tejwani et al.
Journal of pharmaceutical sciences, 100(6), 2136-2146 (2011-04-15)
Atomic-level molecular dynamics simulations of 1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC) bilayers containing small, amphiphilic, drug-like molecules were carried out to examine the influence of polar functionality on membrane partitioning and transport. Three related molecules (tyramine, phenethylamine, and 4-ethylphenol) were chosen to allow a
Molecularly Imprinted High Affinity Nanoparticles for 4-Ethylphenol Sensing.
Garcia-Mutio D, et al.
Procedia Engineering, 120, 1132-1136 (2015)
Factors affecting the production of 4-ethylphenol by the yeast Dekkera bruxellensis in enological conditions.
Dias L, et al.
Food Microbiology, 20(4), 377-384 (2003)
I Carpinteiro et al.
Journal of chromatography. A, 1229, 79-85 (2012-02-14)
Selectivity of mixed-mode solid-phase extraction (SPE) was combined with the concentration power of dispersive liquid-liquid microextraction (DLLME) to obtain a sensitive, low solvent consumption method for gas chromatography-mass spectrometry determination of ethylphenol off-flavours (4-ethylphenol, EP; 4-ethylguaicol, EG and 4-ethylcathecol, EC)
Michael R L Stratford et al.
Bioorganic & medicinal chemistry, 20(14), 4364-4370 (2012-06-16)
In vitro studies, using combined spectrophotometry and oximetry together with hplc/ms examination of the products of tyrosinase action demonstrate that hydroquinone is not a primary substrate for the enzyme but is vicariously oxidised by a redox exchange mechanism in the
Giorgio Ottaviani et al.
Journal of medicinal chemistry, 49(13), 3948-3954 (2006-06-23)
This work was devoted to the search for new artificial membranes allowing a rapid evaluation of passive human skin permeation of compounds with a parallel artificial membrane permeability assay (PAMPA). Effective permeability coefficients (Pe) determined for a set of compounds
Raewyn C Poulsen et al.
Molecular nutrition & food research, 53 Suppl 1, S27-S35 (2009-01-22)
Consumption of the soya isoflavones genistein and daidzein may provide protection against postmenopausal bone loss. The purpose of this study was to determine ileal and faecal digestibility of daidzein and genistein and the extent of formation of metabolites in the
A Morata et al.
Enzyme and microbial technology, 52(2), 99-104 (2013-01-01)
Hydroxycinnamate decarboxylase (HCDC) activity has been evaluated in several commercial yeast strains. The combined effect of using cinnamyl esterases (CE) and HCDC+ Saccharomyces cerevisiae strains has been studied in the formation of vinylphenolic pyranoanthocyanins (VPAs) during fermentation, analysing the kind
R Pradelles et al.
International journal of food microbiology, 135(2), 152-157 (2009-09-05)
Volatile phenols, such as 4-ethylphenol, are responsible for a "horsey" smell in wine. Thus, the study of volatile phenol sorption in yeasts, and their subsequent elimination from wine, helps to optimize eco-friendly wine curative processes. Here, we compared the influences
Josh L Hixson et al.
Journal of agricultural and food chemistry, 60(9), 2293-2298 (2012-02-14)
A method for determining ethyl coumarate and ethyl ferulate in wine using GC-MS with deuterium-labeled analogues has been developed and used to measure the evolution of these two esters during the production of two commercial monovarietal red wines, cv. Grenache
Kazumi Osada et al.
Chemical senses, 34(8), 713-721 (2009-09-18)
Rat urine contains many volatile constituents that may be used for chemical communication. The levels of certain urinary volatiles are strongly dependent on the sex and endocrine status (e.g., puberty). We performed chemical and behavioral studies to identify the volatiles
C A Lopes et al.
Revista Argentina de microbiologia, 41(3), 177-184 (2009-10-17)
Yeasts belonging to the genus Dekkera/Brettanomyces, especially the species Dekkera bruxellensis, have long been associated with the production of volatile phenols responsible for off-flavour in wines. According to recent reports, the species Pichia guilliermondii could also produce these compounds at
D Kridelbaugh et al.
Journal of applied microbiology, 109(1), 190-198 (2009-12-24)
To determine the source material and the responsible micro-organisms of 4-ethylphenol production in swine lagoon sediment slurries. Swine lagoon sediment was blended and incubated with tryptone-yeast extract broth containing 10 mmol l(-1) each of 4-hydroxycinnamic as well as other phenolics.
A P Pollnitz et al.
Journal of chromatography. A, 874(1), 101-109 (2000-04-18)
2,3,5,6-[2H4]-4-Ethylphenol (d4-4-ethylphenol) was synthesised for use as an internal standard in a new, rapid and accurate analytical method, employing gas chromatography-mass spectrometry to determine the concentration of the important aroma compounds 4-ethylphenol and 4-ethylguaiacol in red wine. The concentrations of
T Schettgen et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 995-996, 93-100 (2015-06-06)
We have developed and validated a simple and sensitive method for the determination of urinary phenol as well as the urinary metabolites of toluene and ethylbenzene in one analytical run. After enzymatic hydrolysis for the cleavage of conjugates overnight, the
Giorgio Ottaviani et al.
Journal of medicinal chemistry, 50(4), 742-748 (2007-02-16)
The development of in silico and in vitro tools to estimate or predict the passive human skin permeation and distribution of new chemical entities, useful in dermal drug delivery, in absorption studies of toxic compounds, and in the cosmetics industry
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