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Tamulis Arvydas A Institute of Theoretical Physics and Astronomy, Vilnius University, A. Gostauto 12, Vilnius, - - 2014
This paper contains the review of quantum entanglement investigations in living systems, and in the quantum mechanically modelled photoactive prebiotic kernel systems. We define our modelled self-assembled supramolecular photoactive centres, composed of one or more sensitizer molecules, precursors of fatty acids and a number of water molecules, as a photoactive ...
Igoli John O - - 2014
Chemical investigation of the lichen Cetraria islandica has led to the isolation of four compounds identified as protolichesterinic acid, lichesterinic acid, protocetraric acid and fumarprotocetraric acid. Their structures were characterized using their physical and spectroscopic data. Using an AlamarblueTM 96 well microplate assay, these compounds were tested to evaluate their ...
Nilsson Robert R Division of Chemical Engineering, Luleå University of Technology, SE-971 87 Luleå, Sweden. Electronic address: - - 2014
This paper presents a novel process for n-butanol production which combines a fermentation consuming carbon dioxide (succinic acid fermentation) with subsequent catalytic reduction steps to add hydrogen to form butanol. Process simulations in Aspen Plus have been the basis for the techno-economic analyses performed. The overall economy for the novel ...
Ryckebosch Eline E KU Leuven Kulak, Research Unit Food & Lipids, Department of Molecular and Microbial Systems Kulak, Leuven Food Science and Nutrition Research Centre (LFoRCe), Etienne Sabbelaan 53, 8500 Kortrijk, - - 2014
The purpose of this work was to evaluate the nutritional value of the total lipid extract of different omega-3 long chain polyunsaturated fatty acids producing photoautotrophic microalgae in one study. It was shown that microalgae oils from Isochrysis, Nannochloropsis, Phaeodactylum, Pavlova and Thalassiosira contain sufficient omega-3 LC-PUFA to serve as ...
Abbet Christian C Division of Pharmaceutical Biology, Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, CH-4056 Basel, - - 2014
Plants which have been traditionally eaten by alpine populations may provide new opportunities of agricultural development for mountain regions. In this context we investigated the chemical composition of Cirsium spinosissimum (Asteraceae), a perennial thistle. Its receptacles were eaten by shepherds in Valais (Switzerland). Extracts of aerial parts were subjected to ...
Obruca Stanislav S Materials Research Centre, Faculty of Chemistry, Brno University of Technology, Purkynova 118, Brno, 612 00, Czech Republic, - - 2014
Spent coffee grounds (SCG), an important waste product of the coffee industry, contain approximately 15 wt% of coffee oil. The aim of this work was to investigate the utilization of oil extracted from SCG as a substrate for the production of poly(3-hydroxybutyrate) (PHB) by Cupriavidus necator H16. When compared to other ...
Wu Jiaxi J Department of Molecular Biology - - 2014
The innate immune system utilizes pattern-recognition receptors (PRRs) to detect the invasion of pathogens and initiate host antimicrobial responses such as the production of type I interferons and proinflammatory cytokines. Nucleic acids, which are essential genetic information carriers for all living organisms including viral, bacterial, and eukaryotic pathogens, are major ...
Dessì Mariarita - - 2014
Dyslipidemia and abnormal phospholipid metabolism are frequent in uremic patients and increase their risk of cardiovascular disease (CVD): omega-3 polyunsaturated fatty acids (PUFAs) may reduce this risk in the general population. In this study we compared the plasma and erythrocyte cell membrane composition of PUFAs in a group of Caucasian ...
Nadvorny Daniela - - 2014
Usnic acid is a secondary metabolite found in several species of lichens, organisms resulting from the symbiosis between fungi and algae. This compound has been extensively studied due of its pharmacological properties. Despite its potential medicinal importance, it exhibits a high degree of toxicity. The confinement of the usnic acid ...
Lv Zesheng Z Department of Polymer Science and Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, - - 2014
In this work, a new hydrogel was constructed using poly(ɛ-caprolactone-co-1,4,8-trioxa[4.6]spiro-9-undecanone)-poly(ethylene glycol)-poly(ɛ-caprolactone-co-1,4,8-trioxa[4.6]spiro-9-undecanone) tri-block copolymers (PECT) with hyaluronic acid (HA) in order to expand application scopes of PECT hydrogel. The rheological and sol-gel phase transition behaviors were investigated by rheometer and test tube inversion method, and the interior morphologies of hydrogel systems ...
Tang Xiaoling X School of Chemical and Biomedical Engineering, College of Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, - - 2014
In this study, the Saccharomyces cerevisiae wild type strain and engineered strain with an overexpressed heterologous ATP-citrate lyase (acl) were cultured in medium with different carbon and nitrogen concentrations, and their fatty acid production levels were investigated. The results showed that when the S. cerevisiae engineered strain was cultivated under ...
Taghvaei Mostafa M Department of Food Materials and Process Design Engineering, Faculty of Food Science and Technology, University of Agricultural Sciences and Natural Resources, Gorgan, Iran. Electronic address: - - 2014
Microwave assisted extraction (MAE) is a novel method, which can reduce the extraction time and solvent consumption. This study aimed to evaluate the influence of MAE on oxidative stability and physicochemical properties of cottonseed oil. We found that the optimum extraction conditions were: irradiation time 3.57min; cottonseed moisture content 14% ...
Zha Ying - - 2014
Inhibitors are formed that reduce the fermentation performance of fermenting yeast during the pretreatment process of lignocellulosic biomass. An exometabolomics approach was applied to systematically identify inhibitors in lignocellulosic biomass hydrolysates. We studied the composition and fermentability of 24 different biomass hydrolysates. To create diversity, the 24 hydrolysates were prepared ...
Sułkowska-Ziaja Katarzyna K Department of Pharmaceutical Botany, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland. Electronic address: - - 2014
Phylum Basidiomycota fungal species are of great interest in many studies as a source of valuable biological compounds. The estimation of the levels of antioxidant compounds (phenolic acids, indole compounds and sterols) in edible species of Aphyllophorales (sensu lato): Hydnum repandum L. and Sparassis crispa (Wulf.) Fr. A reversed-phase high ...
Zhang Tong T Chiral Technologies Europe, Bd. Gonthier d'Andernach, 67400, Illkirch, - - 2014
An extensive series of free amino acids and analogues were directly resolved into enantiomers (and stereoisomers where appropriate) by HPLC on zwitterionic chiral stationary phases (Chiralpak ZWIX(+) and Chiralpak ZWIX(-)). The interaction and chiral recognition mechanisms were based on the synergistic double ion-paring process between the analyte and the chiral ...
Lemercier Bérénice C BC Department of Chemistry, North Carolina State University , Raleigh, North Carolina 27695, United - - 2014
A copper catalyzed aminobromination of alkene tethered thiohydroximic acids is described, providing a rapid approach to unnatural thiazoline scaffolds not readily available via existing methods. Moderate to high yields of bromothiazolines are obtained with alkyl- and aryl-substituted thiohydroximic acid building blocks containing mono-, di-, and trisubstituted alkenes. The reaction provides ...
Szoka Francis C - - 2014
Herein, we describe an efficient and high-yielding method to synthesize hyaluronan oligosaccharide-lipid conjugates. This strategy is based on first covalently attaching diphytanoyl glycerophosphatidylethanolamine (DiPhPE) to commercially available high molecular weight hyaluronic acid (HA), via the carboxylate group of the glucuronic acid using carbodiimide chemistry. The HA-lipid conjugate mixture is then ...
Deng Yongming Y Department of Chemistry and Biochemistry, Miami University, Oxford, OH 45056, USA. - - 2014
Synergistic-cooperative combination of enamine catalysis with transition metal catalysis is an emerging and exciting field aiming to achieve organic transformations that cannot be accomplished by individual catalysis. The biggest obstacle in this field lies in the catalyst incompatibility arising from Lewis acid-Lewis base interactions. Several strategies including soft/hard combination of ...
Monopoli A A Università degli Studi di Bari "Aldo Moro", Chemistry Dept., Via Orabona, 4, 70126 Bari, Italy. antomono@libero.it - - 2014
A boronic analogue of the archetype matrix α-cyano-4-hydroxycinnamic acid (CHCA) has been synthesised providing a new "reactive matrix" that possesses molecular recognition properties. This matrix selectively recognizes vic-diols, α-hydroxyacids, aminols and first allowed the detection of anions as fluoride (unaffordable by usual matrices).
Cañeque T T Institut de Chimie des Substances Naturelles, ICNS-CNRS UPR2301, Gif/Yvette Cedex 91198, France. - - 2014
This Tutorial Review summarizes recent examples of electrophilic activation of allenes with particular focus on analogies and differences between Lewis and Brønsted acid activation of these versatile substrates. The aim of this article is to present a general overview of the possibilities offered to chemists using complementary modes of catalysis ...
Zieliński Lukasz L Faculty of Chemistry, Opole University , Oleska 48, 45-052 Opole, - - 2014
The aim of this study was to evaluate the application of chemometrics studies to determine the botanical origin of Polish monofloral honeys using NMR spectroscopy. Aqueous extracts of six kinds of honeys, namely, heather (Calluna vulgaris L.), buckwheat (Fagopyrum esculentum L), lime (Tilia L), rape (Brassica napus L. var. napus), ...
Enders Dieter D Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany. - - 2014
The first enantio- and chemoselective Brønsted-acid catalysed reduction of α-keto esters with catecholborane has been developed. The α-hydroxy esters were obtained under mild reaction conditions in virtually quantitative yields and excellent enantioselectivities. With slight modifications both enantiomers can be obtained without any loss of selectivity.
Mun Sungyong S Department of Chemical Engineering, Hanyang University, Seoul 133-791, South Korea. Electronic address: - - 2014
The three-zone simulated moving bed (SMB) chromatographic process for separation of succinic acid and lactic acid, which has been developed previously, was based on a classical port-location arrangement (desorbent→extract→feed→raffinate) and a classical feeding mode (full-feeding). To improve the performance of the three-zone SMB process, it is worth utilizing the strategy ...
Eoh Hyungjin H Department of Medicine, Division of Infectious Diseases, Weill Cornell Medical College, New York, NY - - 2014
Few mutations attenuate Mycobacterium tuberculosis (Mtb) more profoundly than deletion of its isocitrate lyases (ICLs). However, the basis for this attenuation remains incompletely defined. Mtb's ICLs are catalytically bifunctional isocitrate and methylisocitrate lyases required for growth on even and odd chain fatty acids. Here, we report that Mtb's ICLs are ...
Wycoff Donald E DE Department of Chemistry, University of Missouri, Columbia, MO 65211, United - - 2014
An anion exchange method was developed to separate selenium and arsenic for potential utility in a (72)Se/(72)As generator. The separation of the daughter (72)As from the (72)Se parent is based on the relative acid-base behavior of the two oxo-anions in their highest oxidation states. At pH 1.5, selenate is retained ...
Aller Kadri K The Competence Center of Food and Fermentation Technologies (CCFFT), Akadeemia tee 15A, 12618, Tallinn, Estonia, - - 2014
Lactic acid bacteria are extensively used in food technology and for the production of various compounds, but they are fastidious in nutrient requirements. In order to elucidate the role of each component precisely, defined multicomponent media are required. This study focuses on determining nutrient auxotrophies and minimizing media components (amino ...
Sánchez de Medina Verónica V Department of Analytical Chemistry, Annex C-3, Campus of Rabanales, University of Córdoba, Córdoba, Spain; University of Córdoba Agroalimentary Excellence Campus, ceiA3, Campus of Rabanales, 14071, Córdoba, Spain; Maimónides Institute for Research in Biomedicine of Cordoba, Reina Sofia University Hospital, University of - - 2014
The growing demand of high quality virgin olive oils (VOOs) has increased the interest in olive breeding programs. Cross-breeding is considered, within these programs, the best strategy to generate new cultivars as an attempt to improve the present cultivars. In this research, the phenolic profile of VOOs from target crosses ...
Liu Hu H School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR - - 2014
This paper is a comparative study of recycling rare earth elements from waste phosphor, which focuses on the leaching rate and the technical principle. The traditional and dual dissolution by hydrochloric acid (DHA) methods were compared. The method of dual dissolution by hydrochloric acid has been developed. The Red rare ...
Shao Yanlin - - 2014
A comprehensive description of flavonoids and hydroxycinnamic acid derivatives in Brassica napus L. var. napus seeds is important to improve rapeseed quality. HPLC-PDA-ESI(-)/MSn/HRMS has been broadly applied to study phenolic compounds in plants. In the present study, crude phenolic compounds extracted from rapeseed were subjected to column chromatography, alkaline hydrolysis, ...
Schubert Vivien V Institut für Chemie, TU Berlin, Straße des 17, Juni 124, 10623 Berlin - - 2014
Skyllamycin is a non-ribosomally synthesized cyclic depsipeptide from Streptomyces sp. Acta 2897 that inhibits PDGF-signaling. The peptide scaffold contains an N-terminal cinnamoyl moiety, a β-methylation of aspartic acid, three β-hydroxylated amino acids and one rarely occurring α-hydroxy glycine. With the exception of α-hydroxy glycine, the stereochemistry of the amino acids ...
Rayner Benjamin S BS Inflammation Group, The Heart Research Institute, 7 Eliza Street, Newtown, Sydney, NSW 2042, Australia. Sydney Medical School, University of Sydney, Sydney, NSW 2006, - - 2014
Myeloperoxidase is an important haem enzyme released by activated leukocytes that catalyses the reaction of hydrogen peroxide with halide and pseudo-halide ions to form different hypohalous acids. Hypohalous acids are chemical oxidants that have potent antibacterial, antiviral and antifungal properties, and as such, play a key role in the human ...
Huang Jiansheng J Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL - - 2014
Myeloperoxidase (MPO) catalyzes the breakdown of hydrogen peroxide and the formation of the potent oxidant hypochlorous acid. We present the application of the fluorogenic peroxidase substrate 10-acetyl-3,7-dihydroxyphenoxazine (ADHP) in steady-state and transient kinetic studies of MPO function. Using initial kinetic parameters for the MPO system, we characterized under the same ...
Sun Bingbing B Beijing National Laboratory for Molecular Sciences, Key Lab of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China; College of Food Sciences and Engineering, Shandong Agricultural University, Tai'an, Shandong 271018, PR - - 2014
New kinds of amino acid ionic liquids (AAILs) with pyridinium as cations and l-lysine (l-Lys) as anion have been developed as the available chiral ligands coordinated with Zn(II) in chiral ligand-exchange capillary electrophoresis (CLE-CE). Four kinds of AAILs, including [1-ethylpyridinium][l-lysine], 1-butylpyridinium][l-lysine], [1-hexylpyridinium][l-lysine] and 1-[octylpyridinium][l-lysine], were successfully synthesized and characterized by ...
Cognat Claudine C Enhancing Crop Productivity & Utilisation, The James Hutton Institute, Invergowrie, Dundee DD2 5DA, Scotland, UK. Electronic address: - - 2014
The shelf-life of plain oatcakes and oatcakes containing a natural antioxidant (rosemary extract) was studied for 28weeks. The biscuits were evaluated using several chemical analyses to determine oxidation (headspace analysis, free fatty acids profile, peroxide value and anisidine value), in addition to sensory testing. A selection of volatiles, including hexanal, ...
Bent Stephen S University of California, San Francisco. Electronic address: - - 2014
Preliminary evidence suggests that omega-3 fatty acids may reduce hyperactivity in children with autism spectrum disorder (ASD). We sought to examine the feasibility of a novel, Internet-based clinical trial design to evaluate the efficacy of this supplement. E-mail invitations were sent to parents of children aged 5 to 8 years ...
Ananthan Bakthavachalam - - 2014
By combining a novel acid-promoted rearrangement of acetal functionality with the controlled installation of the epoxide unit to create the pivotal epoxide intermediates in enantiomerically pure form, a simple, concise, flexible, and readily scalable enantiodivergent synthesis of (+)- and (-)-shikimic acids and (+)- and (-)-4-epi-shikimic acids has emerged. Not only ...
Schäffner Benjamin B Evonik Industries AG, Paul-Baumann-Str. 1, 45772 Marl (Germany) http://www.evonik.com http://ww.creavis.de. - - 2014
Carbon dioxide can be used in various ways as a cheap C1 source. However, the utilization of CO2 requires energy or energy-rich reagents, which leads to further emissions, and therefore, diminishes the CO2 -saving potential. Therefore, life cycle assessment (LCA) is required for each process that uses CO2 to provide ...
Alvarez-Ordóñez Avelino A School of Microbiology, University College Cork, Cork, Ireland; Food for Health Ireland, University College Cork, Cork, Ireland. Electronic address: - - 2014
Cronobacter sakazakii is a foodborne pathogenic microorganism associated with sporadic cases of neonatal meningitis, necrotising enterocolitis, septicaemia, bloody diarrhoea and brain abscesses acquired through the consumption of contaminated powdered infant formula (PIF). This study aimed to investigate the growth of C. sakazakii DPC6529, a particularly stress tolerant clinical isolate, in ...
De Bratati B Phytochemistry and Pharmacognosy research Laboratory, Department of Botany, University of Calcutta, 35, Ballygunge Circular Road, Kolkata 700019, India. Electronic address: - - 2014
The aim of the present work was to analyze metabolic diversity in 26 different indica varieties of rice grains. Seventy-six metabolites could be identified in the methanol extracts of each of the rice varieties analyzed by gas chromatography-mass spectrometry. These metabolites included 9 sugars/sugar alcohols, 17 amino acids/derivatives, 18 fatty ...
Wendell Stacy Gelhaus SG Asthma Institute, UPMC, Department of - - 2014
Fatty acids and consequently diet play an essential role in the formation of inflammatory mediators involved in the pathogenesis of asthma. Because intake variations of omega-6 (n-6) and omega-3 (n-3) fatty acids ultimately determine cell membrane incorporation, changes in diet have the potential to modify downstream production of inflammatory mediators ...
Ni Xiang X State Key Laboratory of Elemento-Organic Chemistry, Department of Chemistry, Nankai University, and Collaborative Innovation Center of Chemical Science and Engineering , Tianjin 300071, - - 2014
A number of popular squaramide organocatalysts' acidities were determined by an overlapping indicator method in DMSO via UV spectrophotometric titrations. The pKa values are in the range of 8.37-16.46. The results may be helpful for the rational design and development of squaramide type new catalysts.
Dunn Michael Frederick MF Centro de Ciencias Genómicas, UNAM , Cuernavaca , - - 2014
Abstract Rhizobia are bacteria in the α-proteobacterial genera Rhizobium, Sinorhizobium, Mesorhizobium, Azorhizobium and Bradyrhizobium that reduce (fix) atmospheric nitrogen in symbiotic association with a compatible host plant. In free-living and/or symbiotically associated rhizobia, amino acids may, in addition to their incorporation into proteins, serve as carbon, nitrogen or sulfur sources, ...
Ding Ya Y 1] Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant St, Amherst, Massachusetts, MA 01003, USA [2] Key Laboratory of Drug Quality Control and Pharmacovigilance, China Pharmaceutical University, Ministry of Education, Nanjing, Jiangsu 210009, China - - 2014
Gold nanoparticles provide an attractive and applicable scaffold for delivery of nucleic acids. In this review, we focus on the use of covalent and noncovalent gold nanoparticle conjugates for applications in gene delivery and interfering RNA technologies. We also discuss challenges in nucleic acid delivery, including endosomal entrapment/escape and active ...
Nguyen Thanh V TV Department of Chemistry, Curtin University , Perth, WA 6102, - - 2014
A new method for the nucleophilic substitution of alcohols and carboxylic acids using aromatic tropylium cation activation has been developed. This article reports the use of chloro tropylium chloride for the rapid generation of alkyl halides and acyl chlorides under very mild reaction conditions. It demonstrates, for the first time, ...
Wilcox C C Cochrane Medical Education Centre, Cardiff University School of Medicine, Cardiff, - - 2014
Bile acid malabsorption (BAM) is a common, yet under-recognised, cause of chronic diarrhoea, with limited guidance available on the appropriate management of patients with BAM. To summarise the evidence supporting different treatments available for patients with bile acid malabsorption, noting their impact on clinical outcomes, tolerability and associated side effects. ...
Khedri Zahra Z Department of Chemistry, University of California, One Shields Avenue, Davis, CA 95616, - - 2014
Modifications at the glycerol side chain of sialic acid in sialosides modulate their recognition by sialic acid-binding proteins and sialidases. However, limited work has been focused on the synthesis and functional studies of sialosides with C7-modified sialic acids. Here we report chemical synthesis of C4-modified ManNAc and mannose and their ...
Balakrishnan Madhesan M Energy Biosciences Institute, Department of Chemical and Biomolecular Engineering, University of California at Berkeley, CA 94720 - - 2014
Synthesis of transportation fuel from lignocellulosic biomass is an attractive solution to the green alternative-energy problem. The production of biodiesel, in particular, involves the process of upgrading biomass-derived small molecules to diesel precursors containing a specific carbon range (C11 -C23 ). Herein, a carbon-upgrading process utilizing an acid-catalyzed condensation of ...
Lipfert Jan J Department of Bionanoscience, Kavli Institute of Nanoscience, Delft University of Technology, 2628 CJ Delft, and Netherlands and Department of Physics and Center for the NanoScale, University of Munich, 80799 Munich, Germany; email: - - 2014
Ions surround nucleic acids in what is referred to as an ion atmosphere. As a result, the folding and dynamics of RNA and DNA and their complexes with proteins and with each other cannot be understood without a reasonably sophisticated appreciation of these ions' electrostatic interactions. Because the ion atmosphere ...
Schade Matthias M Humboldt-Universität zu Berlin, Institut für Biologie, Invalidenstr. 42, 10115 Berlin, - - 2014
Lipophilic nucleic acids have become a versatile tool for structuring and functionalization of lipid bilayers and biological membranes as well as cargo vehicles to transport and deliver bioactive compounds, like interference RNA, into cells by taking advantage of reversible hybridization with complementary strands. This contribution reviews the different types of ...
Harohally Nanishankar V NV Food Safety and Analytical Quality Control Laboratory, CSIR-CFTRI, KRS Road, Mysore 570020, Karnataka, India. Electronic address: - - 2014
An efficient and practical protocol for the synthesis of Amadori ketoses N-(1-deoxy-d-fructose-1-yl) amino acid (amino acid=l-valine (1), l-leucine (2), l-isoleucine (3), l-tryptophan (4), l-phenylalanine (5), l-arginine (6) has been accomplished by employing ZnCl2 as a catalyst. The developed method circumvents protection and deprotection steps as well as tedious ion-exchange and ...
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