V1104

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Showing 1-30 of 176 results for "V1104" within Papers

Flavoring extracts of Hemidesmus indicus roots and Vanilla planifolia pods exhibit in vitro acetylcholinesterase inhibitory activities.

Anish Kundu et al.

Plant foods for human nutrition (Dordrecht, Netherlands), 68(3), 247-253 (2013-05-30)

Acetylcholinesterase inhibitors (AChEIs) are important for treatment of Alzheimer's disease and other neurological disorders. Search for potent and safe AChEIs from plant sources still continues. In the present work, we explored fragrant plant extracts that are traditionally used in flavoring

Effect of chocolate and Propolfenol on rabbit spermatogenesis and sperm quality following bacterial lipopolysaccharide treatment.

Giulia Collodel et al.

Systems biology in reproductive medicine, 60(4), 217-226 (2014-05-03)

The aims of the study were to evaluate the effects of chocolate and propolis-enriched diets on rabbit spermatogenesis, sperm motility, and ultrastructure following bacterial lipopolysaccharide (LPS) treatment. Thirty-two New Zealand White rabbits were divided into four groups. The LPS-Propolfenol(®) group

Effect of commonly used organic solvents on aldehyde oxidase-mediated vanillin, phthalazine and methotrexate oxidation in human, rat and mouse liver subcellular fractions.

Dayanidhi Behera et al.

Xenobiotica; the fate of foreign compounds in biological systems, 44(8), 722-733 (2014-02-19)

1. Aldehyde oxidase (AOX) is a cytosolic molybdoflavoprotein enzyme widely distributed across many tissues. In this study, we report the effect of commonly used organic solvents such as dimethyl sulfoxide (DMSO), acetonitrile (ACN), methanol and ethanol on AOX activity in

Contribution of Bacillus Isolates to the Flavor Profiles of Vanilla Beans Assessed through Aroma Analysis and Chemometrics.

Fenglin Gu et al.

Molecules (Basel, Switzerland), 20(10), 18422-18436 (2015-10-17)

Colonizing Bacillus in vanilla (Vanilla planifolia Andrews) beans is involved in glucovanillin hydrolysis and vanillin formation during conventional curing. The flavor profiles of vanilla beans under Bacillus-assisted curing were analyzed through gas chromatography-mass spectrometry, electronic nose, and quantitative sensory analysis.

Biotechnological production of vanillin.

H Priefert et al.

Applied microbiology and biotechnology, 56(3-4), 296-314 (2001-09-11)

Vanillin is one of the most important aromatic flavor compounds used in foods, beverages, perfumes, and pharmaceuticals and is produced on a scale of more than 10 thousand tons per year by the industry through chemical synthesis. Alternative biotechnology-based approaches

Biovanillin from agro wastes as an alternative food flavour.

Nur Ain Zamzuri et al.

Journal of the science of food and agriculture, 93(3), 429-438 (2012-12-05)

This review provides an overview of biovanillin production from agro wastes as an alternative food flavour. Biovanillin is one of the widely used flavour compounds in the foods, beverages and pharmaceutical industries. An alternative production approach for biovanillin as a

Vanillin suppresses Kupffer cell-related colloidal carbon-induced respiratory burst activity in isolated perfused rat liver: anti-inflammatory implications.

José E Galgani et al.

Food & function, 3(12), 1319-1323 (2012-09-26)

The inhibition of NADPH oxidase has become a potential therapeutic target for oxidative stress-related diseases. We investigated whether vanillin modifies hepatic O(2) consumption associated with Kupffer cell functioning. The influence of vanillin on Kupffer cell functioning was studied in isolated

Serotonergic activity-guided phytochemical investigation of the roots of Angelica sinensis.

Shixin Deng et al.

Journal of natural products, 69(4), 536-541 (2006-04-29)

Serotonin receptor (5-HT(7)) binding assay-directed fractionation of a methanol extract of the dried roots of Angelica sinensis led to the isolation and identification of 21 compounds including a new phenolic ester, angeliferulate (1), and three new phthalides, 10-angeloylbutylphthalide (2), sinaspirolide

Lignocellulose-derived inhibitors improve lipid extraction from wet Rhodococcus opacus cells.

Kazuhiko Kurosawa et al.

Bioresource technology, 193, 206-212 (2015-07-05)

Extracting lipids from oleaginous microbial cells in a cost effective and environmentally compatible manner remains a critical challenge in developing manufacturing paradigms for advanced liquid biofuels. In this study, a new approach using microbial growth inhibitors from lignocellulose-derived feedstocks was

Improved characterization of EV preparations based on protein to lipid ratio and lipid properties.

Xabier Osteikoetxea et al.

PloS one, 10(3), e0121184-e0121184 (2015-03-24)

In recent years the study of extracellular vesicles has gathered much scientific and clinical interest. As the field is expanding, it is becoming clear that better methods for characterization and quantification of extracellular vesicles as well as better standards to

Evaluation of Yeast Derivative Products Developed as an Alternative to Lees: The Effect on the Polysaccharide, Phenolic and Volatile Content, and Colour and Astringency of Red Wines.

Rubén Del Barrio-Galán et al.

Molecules (Basel, Switzerland), 24(8) (2019-04-18)

Due to the increase of the use of yeast derivatives (YDs) in winemaking to improve the technological and sensory properties in wines, in this work we evaluated the effect of the post-fermentation application of different yeast derivative products on the

Synthetic-biology firms shift focus.

Erika Check Hayden

Nature, 505(7485), 598-598 (2014-01-31)

Anti-UV activity of lignin-carbohydrate complex and related compounds.

Toshiyuki Nanbu et al.

In vivo (Athens, Greece), 27(1), 133-139 (2012-12-15)

We recently reported that an alkaline extract of the leaves of Sasa senanensis Rehder (SE) and Lentinus edodes mycelia extract (LEM), exhibiting lignin-carbohydrate complex (LCC)-like activity, protected cells from UV-induced injury (referred to as anti-UV activity). We investigated whether LCC

Polymethacrylate monolithic columns for hydrophilic interaction liquid chromatography prepared using a secondary surface polymerization.

Sinéad Currivan et al.

Journal of chromatography. A, 1402, 82-93 (2015-05-30)

Zwitterionic methacrylate based polymeric monolithic columns were prepared in two-step polymerizations, with reduced polymerization times. Characteristic properties such as hydrodynamic permeability, porosity, retention factors, and pore size distribution charts were used for column evaluation. A scaffold column was fabricated by

Monitoring Glycan-Protein Interactions by NMR Spectroscopic Analysis: A Simple Chemical Tag That Mimics Natural CH-π Interactions.

Luis P Calle et al.

Chemistry (Weinheim an der Bergstrasse, Germany), 21(32), 11408-11416 (2015-07-17)

Detection of molecular recognition processes requires robust, specific, and easily implementable sensing methods, especially for screening applications. Here, we propose the difluoroacetamide moiety (an acetamide bioisoster) as a novel tag for detecting by NMR analysis those glycan-protein interactions that involve

Experimental and Molecular Dynamics Simulation Study of the Effects of Lignin Dimers on the Gel-to-Fluid Phase Transition in DPPC Bilayers.

Xinjie Tong et al.

The journal of physical chemistry. B, 123(39), 8247-8260 (2019-09-06)

High resolution differential scanning calorimetry (DSC) and molecular dynamics (MD) simulations were used to investigate the effect of three lignin dimers on the gel to fluid phase transition in DPPC lipid bilayers. The goal of this research is to begin

Fenugreek extract as an inducer of cellular death via autophagy in human T lymphoma Jurkat cells.

Nasser M Al-Daghri et al.

BMC complementary and alternative medicine, 12, 202-202 (2012-11-01)

Drugs used both in classical chemotherapy and the more recent targeted therapy do not have cancer cell specificity and, hence, cause severe systemic side effects. Tumors also develop resistance to such drugs due to heterogeneity of cell types and clonal

Vanillin differentially affects azoxymethane-injected rat colon carcinogenesis and gene expression.

Ket Li Ho et al.

Journal of medicinal food, 15(12), 1096-1102 (2012-12-12)

Vanillin is the substance responsible for the flavor and smell of vanilla, a widely used flavoring agent. Previous studies reported that vanillin is a good antimutagen and anticarcinogen. However, there are also some contradicting findings showing that vanillin was a

3D-QSAR and molecular docking studies of benzaldehyde thiosemicarbazone, benzaldehyde, benzoic acid, and their derivatives as phenoloxidase inhibitors.

Chao-Bin Xue et al.

Bioorganic & medicinal chemistry, 15(5), 2006-2015 (2007-01-30)

Phenoloxidase (PO), also known as tyrosinase, is a key enzyme in insect development, responsible for catalyzing the hydroxylation of tyrosine into o-diphenols and the oxidation of o-diphenols into o-quinones. Inhibition of PO may provide a basis for novel environmentally friendly

Effect of selected Saccharomyces cerevisiae yeast strains and different aging techniques on the polysaccharide and polyphenolic composition and sensorial characteristics of Cabernet Sauvignon red wines.

Rubén del Barrio-Galán et al.

Journal of the science of food and agriculture, 95(10), 2132-2144 (2014-09-27)

The objective of this work was to study the effect of two Saccharomyces cerevisiae yeast strains with different capabilities of polysaccharide liberation during alcoholic fermentation in addition to subsequent aging on lees with or without oak wood chips as well

Development and application of efficient pathway enumeration algorithms for metabolic engineering applications.

F Liu et al.

Computer methods and programs in biomedicine, 118(2), 134-146 (2015-01-13)

Metabolic Engineering (ME) aims to design microbial cell factories towards the production of valuable compounds. In this endeavor, one important task relates to the search for the most suitable heterologous pathway(s) to add to the selected host. Different algorithms have

Characterization of the catabolic pathway for a phenylcoumaran-type lignin-derived biaryl in Sphingobium sp. strain SYK-6.

Kenji Takahashi et al.

Biodegradation, 25(5), 735-745 (2014-06-12)

Sphingobium sp. strain SYK-6 is capable of degrading various lignin-derived biaryls. We determined the catabolic pathway of a phenylcoumaran-type compound, dehydrodiconiferyl alcohol (DCA) in SYK-6, and identified some of the DCA catabolism genes. In SYK-6 cells, the alcohol group of

Selective valorization of lignin to phenol by direct transformation of Csp2-Csp3 and C-O bonds.

Jiang Yan et al.

Science advances, 6(45) (2020-11-08)

Phenol is an important commodity chemical in the industry, which is currently produced using fossil feedstocks. Here, we report a strategy to produce phenol from lignin by directly deconstructing Csp2-Csp3 and C-O bonds under mild conditions. It was found that

Antimicrobial activity of natural products from the flora of Northern Ontario, Canada.

Janique Vandal et al.

Pharmaceutical biology, 53(6), 800-806 (2015-02-24)

The number of multidrug resistant (MDR) microorganisms is increasing and the antimicrobial resistance expressed by these pathogens is generating a rising global health crisis. In fact, there are only a few antimicrobial agents left that can be used against MDR

Cytotoxic flavonoids from the leaves of Cryptocarya chinensis.

Tsung-Hsien Chou et al.

Journal of natural products, 73(9), 1470-1475 (2010-08-14)

Bioassay-guided fractionation led to the isolation of six new tetrahydroflavanones, cryptochinones A-F (1-6), from the neutral CHCl(3) fraction of Cryptocarya chinensis leaves, together with 14 known compounds (7-20). The structures of these new compounds were determined through spectroscopic analyses, including

Effects of lignin-derived phenolic compounds on xylitol production and key enzyme activities by a xylose utilizing yeast Candida athensensis SB18.

Jinming Zhang et al.

Bioresource technology, 121, 369-378 (2012-08-07)

Candida athensensis SB18 is potential xylitol producing yeast isolated in Singapore. It has excellent xylose tolerance and is able to produce xylitol in high titer and yield. However, by-products, such as phenolic compounds, derived in lignocellulosic biomass hydrolysate might negatively

Rapid synthesis of 4-arylchromenes from ortho-substituted alkynols: A versatile access to restricted isocombretastatin A-4 analogues as antitumor agents.

Dolor Renko et al.

European journal of medicinal chemistry, 90, 834-844 (2014-12-22)

Potent anticancer 4-arylchromene agents 6, as restricted isoCA-4 analogues, were prepared with excellent yields by a rapid and versatile synthetic pathway. First, in the presence of PTSA in EtOH, a variety of arylalkynols 9 were transformed into substituted 4-chromanones 10

On the factors affecting product distribution in laccase-catalyzed oxidation of a lignin model compound vanillyl alcohol: experimental and computational evaluation.

Maarit Lahtinen et al.

Organic & biomolecular chemistry, 11(33), 5454-5464 (2013-07-16)

Laccases (EC 1.10.3.2) are multicopper oxidases, which can oxidize phenolic substrates by the concomitant reduction of oxygen to water. The phenolic substructures of lignin are also oxidized by laccases, resulting mainly in various polymerized products. Several model compound studies indicate

Resolving the smell of wood - identification of odour-active compounds in Scots pine (Pinus sylvestris L.).

Linda Schreiner et al.

Scientific reports, 8(1), 8294-8294 (2018-05-31)

Being one of the most common trees in forests, Pinus sylvestris L. is a frequently used raw material for wood products. Its specific odour is, however, mostly unresolved to date. Accordingly, we investigated Scots pine wood samples grown in Germany

UV-Vis spectroscopic quantification of residual acetone during the development of nanoparticulate drug delivery systems.

Sergio M Espinoza et al.

Pharmaceutical development and technology, 24(6), 751-760 (2019-03-09)

Methods for nanoparticles preparation often employ organic solvents in order to solubilize the non-polar constituents of the final nanostructures. In the research process, nanoparticles are assayed as aqueous suspensions in several cases, so that an excessive residual concentration of the

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