94752

Applied Filters:

Keyword:'94752'

Showing 1-30 of 89 results for "94752" within Papers

Inhibitory property of the Piper betel phenolics against photosensitization-induced biological damages.

Soumyaditya Mula et al.

Bioorganic & medicinal chemistry, 16(6), 2932-2938 (2008-01-22)

The Piper betel phenolics, allylpyrocatechol (APC) and chavibetol (CHV), were found to protect photosensitization-mediated lipid peroxidation (LPO) of rat liver mitochondria effectively, APC being significantly more potent. The better activity of APC vis-à-vis CHV could be attributed to its higher

Simultaneous analysis of guaiacol and vanillin in a vanilla extract by using high-performance liquid chromatography with electrochemical detection.

Makoto Takahashi et al.

Bioscience, biotechnology, and biochemistry, 77(3), 595-600 (2013-03-09)

We developed and validated a new high-performance liquid chromatographic analysis for electrochemically detecting guaiacol and vanillin as important components in vanilla extract. Separation was achieved with Capcell Pak C-18 MG, the potential of the working electrode being set at +1000

Investigation of the Amycolatopsis sp. strain ATCC 39116 vanillin dehydrogenase and its impact on the biotechnical production of vanillin.

Christian Fleige et al.

Applied and environmental microbiology, 79(1), 81-90 (2012-10-16)

The actinomycete Amycolatopsis sp. strain ATCC 39116 is capable of synthesizing large amounts of vanillin from ferulic acid, which is a natural cell wall component of higher plants. The desired intermediate vanillin is subject to undesired catabolism caused by the

Detoxification of biomass hydrolysates with nucleophilic amino acids enhances alcoholic fermentation.

Rui Xie et al.

Bioresource technology, 186, 106-113 (2015-03-31)

Carbonyl compounds generated in biomass pretreatment hinder the biochemical conversion of biomass hydrolysates to biofuels. A novel approach of detoxifying hydrolysates with amino acids for ethanol production was developed. Among the 20 amino acids assessed for their detoxification efficiency and

The chemical profile of pyrrolizidine alkaloids from selected greek endemic boraginaceae plants determined by gas chromatography/mass spectrometry.

Harilaos Damianakos et al.

Journal of AOAC International, 97(5), 1244-1249 (2015-04-24)

Four Greek endemic Boraginaceae plants, Onosma erecta Sibth. & Sm., Onosma kaheirei Teppner, Onosma leptantha Heldr., and Cynoglossum columnae L. (aerial parts), were screened for their content of pyrrolizidine alkaloids (PAs). TLC with the Mattocks-Molyneux visualization reagent was used as

Inhibition of GABA shunt enzymes' activity by 4-hydroxybenzaldehyde derivatives.

Yun-Hai Tao et al.

Bioorganic & medicinal chemistry letters, 16(3), 592-595 (2005-11-18)

4-Hydroxybenzaldehyde (HBA) derivatives were examined as inhibitors for GABA transaminase (GABA-T) and succinic semialdehyde dehydrogenase (SSADH). Investigation of structure-activity relation revealed that a carbonyl group or an amino group as well as a hydroxy group at the para position of

Comparative study on the antioxidant and anti-Toxoplasma activities of vanillin and its resorcinarene derivative.

Claudio B S Oliveira et al.

Molecules (Basel, Switzerland), 19(5), 5898-5912 (2014-05-09)

A resorcinarene derivative of vanillin, resvan, was synthesized and characterized by spectroscopic techniques. We measured the cytotoxicity (in vivo and in vitro), antioxidant and anti-Toxoplasma activities of vanillin and the resorcinarene compound. Here we show that vanillin has a dose-dependent

Increased significance of food wastes: selective recovery of added-value compounds.

Igor A O Reis et al.

Food chemistry, 135(4), 2453-2461 (2012-09-18)

A single-step selective separation of two food additives was investigated using alcohol-salt aqueous two-phase systems (ATPS). The selective partitioning of two of the most used additives from a processed food waste material, vanillin and l-ascorbic acid, was successfully accomplished. The

Impact of induced fit on ligand binding to the androgen receptor: a multidimensional QSAR study to predict endocrine-disrupting effects of environmental chemicals.

Markus A Lill et al.

Journal of medicinal chemistry, 48(18), 5666-5674 (2005-09-02)

We investigated the influence of induced fit of the androgen receptor binding pocket on free energies of ligand binding. On the basis of a novel alignment procedure using flexible docking, molecular dynamics simulations, and linear-interaction energy analysis, we simulated the

A coenzyme-independent decarboxylase/oxygenase cascade for the efficient synthesis of vanillin.

Toshiki Furuya et al.

Chembiochem : a European journal of chemical biology, 15(15), 2248-2254 (2014-08-29)

Vanillin is one of the most widely used flavor compounds in the world as well as a promising versatile building block. The biotechnological production of vanillin from plant-derived ferulic acid has attracted much attention as a new alternative to chemical

Three-Component O-Demethylase System Essential for Catabolism of a Lignin-Derived Biphenyl Compound in Sphingobium sp. Strain SYK-6.

Taichi Yoshikata et al.

Applied and environmental microbiology, 80(23), 7142-7153 (2014-09-14)

Sphingobium sp. strain SYK-6 is able to assimilate lignin-derived biaryls, including a biphenyl compound, 5,5'-dehydrodivanillate (DDVA). Previously, ligXa (SLG_07770), which is similar to the gene encoding oxygenase components of Rieske-type nonheme iron aromatic-ring-hydroxylating oxygenases, was identified to be essential for

Statistical media and process optimization for biotransformation of rice bran to vanillin using Pediococcus acidilactici.

Baljinder Kaur et al.

Indian journal of experimental biology, 51(11), 935-943 (2014-01-15)

An isolate of P. acidilactici capable of producing vanillin from rice bran was isolated from a milk product. Response Surface Methodology was employed for statistical media and process optimization for production of biovanillin. Statistical medium optimization was done in two

Automated method for determination of olive oil phenols and metabolites in human plasma and application in intervention studies.

M I Orozco-Solano et al.

Journal of chromatography. A, 1258, 108-116 (2012-09-05)

The interest for olive oil phenols (OOPs) is a growing trend thanks to their contribution to prevent or improve diseases associated to oxidative damage. OOPs ingested in the diet are found at low concentrations in blood either as free forms

Synthesis, antifungal activity and structure-activity relationships of vanillin oxime-N-O-alkanoates.

Vivek Ahluwalia et al.

Natural product communications, 7(12), 1635-1638 (2013-02-19)

Vanillin oxime-N-O-alkanoates were synthesized following reaction of vanillin with hydroxylamine hydrochloride, followed by reaction of the resultant oxime with acyl chlorides. The structures of the compounds were confirmed by IR, 1H, 13C NMR and mass spectral data. The test compounds

Inhibition by capsaicin and its related vanilloids of compound action potentials in frog sciatic nerves.

Daisuke Tomohiro et al.

Life sciences, 92(6-7), 368-378 (2013-01-29)

Although capsaicin not only activates transient receptor potential vanilloid-1 (TRPV1) channels but also inhibits nerve conduction, the latter action has not yet been fully examined. The purpose of the present study was to know whether various vanilloids have an inhibitory

A deep transcriptomic analysis of pod development in the vanilla orchid (Vanilla planifolia).

Xiaolan Rao et al.

BMC genomics, 15, 964-964 (2014-11-09)

Pods of the vanilla orchid (Vanilla planifolia) accumulate large amounts of the flavor compound vanillin (3-methoxy, 4-hydroxy-benzaldehyde) as a glucoside during the later stages of their development. At earlier stages, the developing seeds within the pod synthesize a novel lignin

Characterization of an isoeugenol monooxygenase (Iem) from Pseudomonas nitroreducens Jin1 that transforms isoeugenol to vanillin.

Ji-Young Ryu et al.

Bioscience, biotechnology, and biochemistry, 77(2), 289-294 (2013-02-09)

The isoeugenol monooxygenase (iem) gene from Pseudomonas nitroreducens Jin1, responsible for the conversion of isoeugenol to vanillin, was cloned and overexpressed in Escherichia coli. The purified Iem had a predicted molecular mass of 54 kDa. The V(max), K(M), and k(cat)

Continuous vs. segmented second-dimension system gradients for comprehensive two-dimensional liquid chromatography of sugarcane (Saccharum spp.).

Gabriel Mazzi Leme et al.

Analytical and bioanalytical chemistry, 406(18), 4315-4324 (2014-06-22)

A comprehensive two-dimensional liquid chromatography system in combination with photodiode array and mass spectrometry detection was developed for analysis of polyphenols in sugarcane (Saccharum spp.) leaf extracts. To achieve this, a micro cyano column and a partially porous octodecylsilica column

Toxicity and synergic repellency of plant essential oil mixtures with vanillin against Aedes aegypti (Diptera: Culicidae).

Soon-Il Kim et al.

Journal of medical entomology, 49(4), 876-885 (2012-08-18)

In all triplicate tests of six plant essential oils and of vanillin mixtures, we corroborated strong insecticidal and repellent activities against adult Aedes aegypti (L.). Essential oils with potent toxic fumigant activities also exhibited repellency. Compared with N, N-diethyl-3-methylbenzamide, 5%

Influenza A (H(1)N(1)) Antiviral and Cytotoxic Agents from Ferula assa-foetida.

Chia-Lin Lee et al.

Journal of natural products, 72(9), 1568-1572 (2009-08-21)

Two new sesquiterpene coumarins, designated 5'-acetoxy-8'-hydroxyumbelliprenin (1) and 10'R-acetoxy-11'-hydroxyumbelliprenin (2), and a new diterpene, 15-hydroxy-6-en-dehydroabietic acid (3), along with 27 known compounds, were isolated from a CHCl(3)-soluble extract of Ferula assa-foetida through bioassay-guided fractionation. The structures of the new metabolites

CYP53A15 of Cochliobolus lunatus, a target for natural antifungal compounds.

Barbara Podobnik et al.

Journal of medicinal chemistry, 51(12), 3480-3486 (2008-05-29)

A novel cytochrome P450, CYP53A15, was identified in the pathogenic filamentous ascomycete Cochliobolus lunatus. The protein, classified into the CYP53 family, was capable of para hydroxylation of benzoate. Benzoate is a key intermediate in the metabolism of aromatic compounds in

Mining biologically-active molecules for inhibitors of fatty acid amide hydrolase (FAAH): identification of phenmedipham and amperozide as FAAH inhibitors.

Fabien Vincent et al.

Bioorganic & medicinal chemistry letters, 19(23), 6793-6796 (2009-10-24)

The screening of known medicinal agents against new biological targets has been shown to be a valuable approach for revealing new pharmacology of marketed compounds. Recently, carbamate, urea and ketone inhibitors of fatty acid amide hydrolase (FAAH) have been described

Bioassay-Guided Chromatographic Isolation and Identification of Antibacterial Compounds from Artemisia annua L. That Inhibit Clostridium perfringens Growth.

Elise Ivarsen et al.

Journal of AOAC International, 97(5), 1282-1290 (2015-04-24)

Clostridium perfringens is the causative agent of necrotic enteritis leading to significant losses in the poultry industry. Dichloromethane and n-hexane extracts of aerial parts of Artemisia annua (Asteraceae) exhibited activity against C. perfringens with minimum inhibitory concentrations (MIC) of 185

Electrochemical behavior and voltammetric determination of vanillin based on an acetylene black paste electrode modified with graphene-polyvinylpyrrolidone composite film.

Peihong Deng et al.

Food chemistry, 180, 156-163 (2015-03-15)

The graphene-polyvinylpyrrolidone composite film modified acetylene black paste electrode (GR-PVP/ABPE) was fabricated and used to determine vanillin. In 0.1M H3PO4 solution, the oxidation peak current of vanillin increased significantly at GR-PVP/ABPE compared with bare ABPE, PVP/ABPE and GR/ABPE. The oxidation

Optimization of enzymatic process for vanillin extraction using response surface methodology.

Fenglin Gu et al.

Molecules (Basel, Switzerland), 17(8), 8753-8761 (2012-07-27)

Vanillin was extracted from vanilla beans using pretreatment with cellulase to produce enzymatic hydrolysis, and response surface methodology (RSM) was applied to optimize the processing parameters of this extraction. The effects of heating time, enzyme quantity and temperature on enzymatic

Thermal tolerance and survival of Cronobacter sakazakii in powdered infant formula supplemented with vanillin, ethyl vanillin, and vanillic acid.

Gökçe Polat Yemiş et al.

Journal of food science, 77(9), M523-M527 (2012-08-21)

The thermal tolerance Cronobacter sakazakii was examined in sterile powdered infant formula (PIF) rehydrated at 58 °C in water or apple juice supplemented with vanillin, ethyl vanillin, or vanillic acid. All three compounds decreased thermal tolerance during-rehydration and the lowest

Mass spectrometric behavior of phenolic acids standards and their analysis in the plant samples with LC/ESI/MS system.

Wojciech Ostrowski et al.

Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 967, 21-27 (2014-07-27)

Liquid chromatography coupled to mass spectrometry (MS) with electrospray ionization (ESI) is one of analytical techniques to obtain accurate results of low molecular weight aromatic compounds in biological samples of different origin. The interpretations of mass spectra of these aromatic

Mixed-ligand Cu(II)-vanillin Schiff base complexes; effect of coligands on their DNA binding, DNA cleavage, SOD mimetic and anticancer activity.

Sartaj Tabassum et al.

European journal of medicinal chemistry, 60, 216-232 (2013-01-08)

SOD mimics with varying coligand are momentous in developing potential chemotherapeutic drugs. Cu(II) based SOD mimics 1-4 [CuLH(OAc)(H(2)O)Y)] (LH = 2-((E)-(1,3-dihydroxy-2-methylpropan-2-ylimino)methyl)-6-methoxyphenol, OAc = CH(3)COO, 1: Y = H(2)O; 2: Y = phen (1,10-phenanthroline), 3: Y = tpimH (2,4,5-triphenylimidazole); 4: Y

Effect of enzymatic deamidation of soy protein by protein-glutaminase on the flavor-binding properties of the protein under aqueous conditions.

Inthawoot Suppavorasatit et al.

Journal of agricultural and food chemistry, 60(32), 7817-7823 (2012-07-27)

The effect of the enzymatic deamidation by protein-glutaminase (PG) on flavor-binding properties of soy protein isolate (SPI) under aqueous conditions was evaluated by a modified equilibrium dialysis (ultrafiltration) technique. Binding parameters, such as number of binding sites (n) and binding

Mild alkali-pretreatment effectively extracts guaiacyl-rich lignin for high lignocellulose digestibility coupled with largely diminishing yeast fermentation inhibitors in Miscanthus.

Ming Li et al.

Bioresource technology, 169, 447-454 (2014-08-01)

In this study, various alkali-pretreated lignocellulose enzymatic hydrolyses were evaluated by using three standard pairs of Miscanthus accessions that showed three distinct monolignol (G, S, H) compositions. Mfl26 samples with elevated G-levels exhibited significantly increased hexose yields of up to

Page 1 of 3