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Perini M M Fondazione Edmund Mach (FEM), Via E. Mach 1, 38010 San Michele all'Adige, Trento, - - 2014
In this paper, we investigate whether the analysis of stable isotope ratios D/H and (13)C/(12)C in ethanol and acetic acid and of (18)O/(16)O in water can be applied to the ingredients of "aceto balsamico di Modena IGP" (ABM) to evaluate their authenticity. We found that impurities in the extraction solution ...
Murthy Hosakatte Niranjana HN Research Center for the Development Advanced Horticultural Technology, Chungbuk National University, Cheongju, 361-763, Korea, - - 2014
Caffeic acid derivatives (CADs) are a group of bioactive compounds which are produced in Echinacea species especially Echinacea purpurea, Echinacea angustifolia, and Echinacea pallida. Echinacea is a popular herbal medicine used in the treatment of common cold and it is also a prominent dietary supplement used throughout the world. Caffeic ...
Kaya Merve M INRA, UR1268 Biopolymères Interactions Assemblages, 44300 Nantes, - - 2014
Pectin is a complex macromolecule, the fine structure of which is influenced by many factors. It is used as a gelling, thickening and emulsifying agent in a wide range of applications, from food to pharmaceutical products. Current industrial pectin extraction processes are based on fruit peel, a waste product from ...
Azuma Takumi T Graduate School of Pharmaceutical Sciences, Kyoto University , Yoshida, Sakyo-ku, Kyoto 606-8501, - - 2014
A bifunctional aminoboronic acid has been used to facilitate for the first time the intramolecular aza- and oxa-Michael reactions of α,β-unsaturated carboxylic acids. The combination of an arylboronic acid with a chiral aminothiourea allowed for these reactions to proceed successfully in an enantioselective manner to afford the desired heterocycles in ...
Ugarriza Iratxe I Departamento de Química Orgánica II, Facultad de Ciencia y Tecnología, Universidad del País Vasco/Euskal Herriko Unibertsitatea UPV/EHU, P.O. Box 644, 48080 Bilbao - - 2014
We have discovered that N-alkyl aminomalonates undergo a fast and selective intramolecular C→N acyl rearrangement reaction in the presence of a strong base, leading to N-protected glycinates in excellent yield. Moreover, the fact that the reaction proceeds through a nucleophilic enolate intermediate has been used for implementing a tandem rearrangement/alkylation ...
Landete José M JM Departamento de Tecnología de Alimentos, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Carretera de La Coruña Km 7.5, 28040, Madrid Spain. Electronic address: - - 2014
An efficient method for genetic transformation of lactic acid bacteria (LAB) by electroporation is presented in this work. A comparative survey with other electrotransformation methods already published showed that the method proposed here yields the higher electrotransformation efficiency in the 12 LAB strains tested, which could make the method applicable ...
Yoshino Hiroyuki H a Research Center for Biochemical and Environmental Engineering, Department of Applied Chemistry , Toyo University , Kawagoe , Saitama , - - 2014
The zero-valent iron (ZVI) wastewater treatment has been applied to simultaneous removal of nitrate, hydrogen peroxide and phosphate in semiconductor acidic wastewaters. The simultaneous removal occurs by the reactions performed due to the sequential transformation of ZVI under the acidic condition. Fortunately the solution pH of semiconductor acidic wastewaters is ...
Redshaw Charlotte C Department of Anaesthesia, Princess Royal Hospital, Telford, - - 2014
Very long-chain acyl-coenzyme A dehydrongenase deficiency (VLCADD) is a rare disorder of fatty acid metabolism that renders sufferers susceptible to hypoglycemia, liver failure, cardiomyopathy, and rhabdomyolysis. The literature about the management of these patients is hugely conflicting, suggesting that both propofol and volatile anesthesia should be avoided. We have reviewed ...
Takahashi Yuta Y Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University , 3-4-1 Ohkubo, Shinjuku-ku, Tokyo 169-8555, - - 2014
Stereoselective acylation of the E,E-vinylketene silyl N,O-acetal possessing a chiral auxiliary has been achieved by using acid anhydrides and SnCl4. Acid anhydrides having alkyl chains gave the adducts in excellent stereoselectivity. The formal synthesis of khafrefungin has been accomplished by the methodology.
Han Yujing Y Department of Biological and Chemical Sciences, Illinois Institute of Technology, Chicago, Illinois, 60616, United - - 2014
Here we report a novel label-free nanopore back titration method for the detection of dipicolinic acid, a marker molecule for bacterial spores. By competitive binding of the target analyte and a large ligand probe to metal ions, dipicolinic acid could be sensitively and selectively detected. This nanopore back titration approach ...
Cassani Carlo C Department of Chemistry and Molecular Biology, Gothenburg University , SE-412 58, Gothenburg, - - 2014
The decarboxylative reduction of naturally abundant carboxylic acids such as α-amino acids and α-hydroxy acids has been achieved via visible-light photoredox catalysis. By using an organocatalytic photoredox system, this method offers a mild and rapid entry to a variety of high-value compounds including medicinally relevant scaffolds. Regioselective decarboxylation is achieved ...
Bellomaria A A Department of Chemical Sciences and Technology, University of Rome Tor Vergata, Via della Ricerca Scientifica 1, 00133, Rome, Italy; Cooperativa di Ricerca Finalizzata, Via della Ricerca Scientifica 1, 00133, Rome, Italy. Electronic address: - - 2014
Several pharmaceutical preparations contain hyaluronic acid in the presence of a large variety of low molecular weight charged molecules like amino acids. In these mixtures, it is particularly difficult to determine the concentration and the molecular weight of the hyaluronic acid fragments. In fact zwitterionic compounds in high concentration behave ...
Wang Ying Y Laboratory of Microbial Technology, Division of Applied Molecular Microbiology and Biomass Chemistry, Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, - - 2014
The development and implementation of renewable materials for the production of versatile chemical resources have gained considerable attention recently, as this offers an alternative to the environmental problems caused by the petroleum industry and the limited supply of fossil resources. Therefore, the concept of utilizing biomass or wastes from agricultural ...
Sengupta Arkajyoti - - 2014
In this study we have used the Connectivity-Based Hierarchy (CBH) method to derive accurate heats of formation of a range of biomolecules - 18 amino acids and 10 barbituric acid/uracil derivatives. The hierarchy is based on the connectivity of the different atoms in a large molecule. It results in error-cancellation ...
Wenstrom Katharine D KD Department of Obstetrics and Gynecology, Women and Infants Hospital/ Brown Alpert Medical School, Providence RI. Electronic address: - - 2014
The FDA and EPA recently issued an updated draft of advice on fish consumption for pregnant and breastfeeding women , after survey data indicated that the majority of pregnant women don't eat much fish and thus may have inadequate intake of the omega 3 fatty acids eicosapentaenoic acid, or EPA, ...
Mori Trevor A TA School of Medicine and Pharmacology, Royal Perth Hospital Unit, University of Western Australia and The Cardiovascular Research Centre, Medical Research Foundation Building, Box X 2213 GPO, Perth, Western Australia 6847. - - 2014
Clinical and epidemiological studies provide support that the polyunsaturated omega-3 fatty acids eicosapentaenoic acid and docosahexaenoic acid from fish and fish oils are cardioprotective, particularly in the setting of secondary prevention. Omega-3 fatty acids benefit multiple cardiometabolic risk factors including lipids, blood pressure, vascular reactivity and cardiac function, as well ...
Tong Qing Q Department of Neurology, The First Affiliated Hospital of Nanjing Medical University, No. 300 Guangzhou Road, Nanjing, 210029, - - 2014
Converging evidence suggests that changes in plasma levels of amino acids are involved in Parkinson's disease (PD), but their roles in nonmotor symptoms (NMS) of PD remain unclear. The aim of this study was to evaluate the correlations between plasma amino acids and NMS of PD. Plasma levels of aspartate ...
Hayer Kimran K School of Life Sciences, University of Nottingham, University Park, Nottingham, NG7 2RD, United - - 2014
Conidial germination is fundamentally important to the growth and dissemination of most fungi. It has been previously shown (K. Hayer, M. Stratford, D.B. Archer, Appl. Environ. Microbiol. 79: 6924-6931, 2013) using sugar analogs that germination is a 2-stage process involving triggering of germination and then nutrient uptake for hyphal outgrowth. ...
Zhao Xianliang - - 2014
Interferon (IFN) family is a large group of cytokines involved in innate immune response against various microorganisms. However, whether IFN functions in antimicrobial property by metabolic pathways is largely unknown. In the present study, GC/MS-based metabolome is investigated in humoral fluid of zebrafish (Dario rerio) which are exposed to three ...
Kumar Ajit A Department of Microbiology, School of Life Sciences, College of Agriculture, Engineering and Science, University of KwaZulu Natal , Westville Campus, Durban , South Africa - - 2014
Abstract A considerable progress has been made to understand the mechanisms of biodegradation of 2,4-dichlorophenoxyacetic acid (2,4-D). 2,4-D biodegradation pathway has been elucidated in many microorganisms including Cupriavidus necator JMP134 (previously known as Wautersia eutropha, Ralstonia eutropha and Alcaligenes eutrophus) and Pseudomonas strains. It generally involves the side chain removal ...
Pensec Flora - - 2014
Triterpenoids present in grape cuticular waxes are of interest due to their potential role in the protection against biotic stresses, their impact on the mechanical toughness of the fruit surface and the potential industrial application of these biologically active compounds from grape pomace. The determination of the triterpenoid profile of ...
Yonekawa Takahiro T 1 Department of Neuromuscular Research, National Institute of Neuroscience, National Centre of Neurology and Psychiatry (NCNP), Tokyo, Japan2 Department of Education, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, - - 2014
Patients with GNE myopathy, a progressive and debilitating disease caused by a genetic defect in sialic acid biosynthesis, rely on supportive care and eventually become wheelchair-bound. To elucidate whether GNE myopathy is treatable at a progressive stage of the disease, we examined the efficacy of sialic acid supplementation on symptomatic ...
Afri Michal M The Department of Chemistry, Bar-Ilan University, Ramat Gan 5290002, Israel. Electronic address: - - 2014
The development of "molecular rulers" would allow one to quantitatively locate the penetration depth of intercalants within lipid bilayers. To this end, an attempt was made to correlate the (13)C NMR chemical shift of polarizable "reporter" carbons (e.g., carbonyls) of intercalants within DMPC liposomal bilayers - with the polarity it ...
Kim Sung-Wan SW Department of Psychiatry, Chonnam National University Medical School, Gwangju, Republic of - - 2014
Cognitive symptoms and impairment are central to schizophrenia and often an early sign of this condition. The present study investigated biological correlates of cognitive symptoms and performance in individuals at ultra-high risk (UHR) for psychosis. The study sample comprised 80 neuroleptic-naïve UHR individuals aged 13-25years. Associations among erythrocyte membrane fatty ...
Pelletier Jeffrey C JC Fox Chase Chemical Diversity Center, Inc., 3805 Old Easton Rd., Doylestown, PA - - 2014
We have found that α-amino acid amide derivatives of 2-aminobenzothiazoles undergo a time-dependent, thermal rearrangement in which the amine group attacks the 2-position carbon of the thiazole ring to form a 5,5-spiro ring system. This is followed by sulfur leaving and air oxidation to the corresponding symmetrical disulfide. The isolated ...
Afri Michal M The Department of Chemistry, Bar-Ilan University, Ramat Gan 5290002, Israel. Electronic address: - - 2014
In our companion paper, we described the preparation and intercalation of two homologous series of dicarbonyl compounds, methyl n-oxooctadecanoates and the corresponding n-oxooctadecanoic acids (n=4-16), into DMPC liposomes. (13)C NMR chemical shift of the various carbonyls was analyzed using an ET(30) solvent polarity-chemical shift correlation table and the corresponding calculated ...
Jeong Gwi-Taek GT Department of Biotechnology, Pukyong National University, Busan, 608-737, South Korea, - - 2014
This study employed a statistical methodology to investigate the optimization of conversion conditions and evaluate the reciprocal interaction of reaction factors related to the process of red-algae Gracilaria verrucosa conversion to sugars (glucose, galactose), levulinic acid and 5-hydroxymethylfurfural (5-HMF) by acidic hydrolysis. Overall, the conditions optimized for glucose formation included ...
Hauck Oliver K OK Freie Universität Berlin, Dahlem Centre of Plant Sciences, Department of Plant Biochemistry, 14195 Berlin, - - 2014
Purine nucleotides can be fully catabolized by plants to recycle nutrients. We have isolated a urate oxidase (uox) mutant of Arabidopsis thaliana that accumulates uric acid in all tissues, especially in the developing embryo. The mutant displays a reduced germination rate and is unable to establish autotrophic growth due to ...
Ahammed Sabir - - 2014
An efficient Csp-Csp cross coupling of alkynyl bromide and pinacol ester of alkynyl boronic acid catalyzed by CuFe2O4 nanoparticles has been accomplished in dimethyl carbonate to produce unsymmetric 1,3-diynes. This protocol is also ex-tended for the Csp-Csp2 coupling of alkynyl bromide and alkenyl boronic acid to provide conjugated 1,3-enynes. The ...
Bueken Bart B Centre for Surface Chemistry and Catalysis, KU Leuven - University of Leuven, Kasteelpark Arenberg 23 post box 2461, 3001 Leuven, Belgium. - - 2014
We report the first zirconium metal-organic framework based on squaric acid, representing the member with the smallest unit cell in the isoreticular UiO-66 family. Its molecular sieving properties are strongly influenced by the monocarboxylic acid modulator incorporated during synthesis.
Moughan Paul J PJ Riddet Institute, Massey University, Private Bag 11-222, Palmerston North 4442, New Zealand - - 2014
A case is made for the application of true ileal amino acid digestibility and true ileal reactive lysine digestibility (lysine availability) in poultry nutrition. Technical aspects of the true ileal digestibility assays are reviewed, as are factors influencing amino acid digestibility in the broiler. There is considerable variation in amino ...
Mukwevho Emmanuel E Department of Biochemistry, University of Johannesburg, PO Box 524, Auckland Park 2006, South Africa. Electronic address: - - 2014
Activation of Calmodulin dependent protein kinase (CaMK) - II by exercise has plethora of benefits in health. Fatty acids play a pivotal role in the pathogenesis of metabolic syndrome (MetS). Prevention of MetS and treatment of its main characteristics are very significant to fight against type 2 diabetes. CaMKII activation ...
Mescka Caroline Paula CP Serviço de Genética Médica, HCPA, UFRGS, Rua Ramiro Barcelos, 2350, 90035-903 Porto Alegre, RS, Brazil; Programa de Pós-Graduação em CB:Bioquímica e Departamento de Bioquímica, UFRGS, Rua Ramiro Barcelos, 2600, 90035-000 Porto Alegre, RS, Brazil. Electronic address: - - 2014
Maple syrup urine disease (MSUD) is an inherited aminoacidopathy caused by a deficiency in branched-chain α-keto acid dehydrogenase complex activity that leads to the accumulation of the branched-chain amino acids (BCAAs) leucine (Leu), isoleucine, and valine and their respective α-keto-acids, α-ketoisocaproic acid (KIC), α keto-β-methylvaleric acid, and α-ketoisovaleric acid. The ...
Lustgarten Michael S MS Nutrition, Exercise Physiology, and Sarcopenia Laboratory, Jean Mayer USDA Human Nutrition Research Center, Tufts University, 711 Washington Street, Boston, MA, 02111, - - 2014
Identification of mechanisms underlying physical function will be important for addressing the growing challenge that health care will face with physical disablement in the expanding aging population. Therefore, the goals of the current study were to use metabolic profiling to provide insight into biologic mechanisms that may underlie physical function ...
Chu Lingling - - 2014
The direct application of carboxylic acids as a traceless activation group (TAG) for radical Michael additions has been accomplished via visible light-mediated photoredox catalysis. Photon-induced oxidation of a broad series of carboxylic acids, including hydrocarbon-substituted, α-oxy, and α-amino acids, provides a versatile CO2-extrusion platform to generate Michael donors without the ...
Zampieri Fernando G - - 2014
There is a complex interplay between changes in acid-base components and inflammation. This manuscript aims to explore associations between plasma cytokines and chemokines and acid-base status on admission to intensive care. We conducted a prospective cohort study in a 13-bed ICU in a tertiary-care center in Brazil. 87 unselected patients ...
Chen Li L State Key Lab of Integrated Management of Pest Insects and Rodents; Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101 (P.R. - - 2014
The practical utility of ionic liquids (ILs) makes the absence (heretofore) of reported examples from nature quite puzzling, given the facility with which nature produces many other types of exotic but utilitarian substances. In that vein, we report here the identification and characterization of a naturally occurring protic IL. It ...
Gao Ruibin R Key Laboratory of Chemistry and Quality for Traditional Chinese Medicines of the College of Gansu Province, Department of Pharmacy, Gansu College of Traditional Chinese Medicine, Lanzhou, 730000, People's Republic of - - 2014
The method of capillary zone electrophoresis (CZE) with direct UV detection was developed for the determination of oleanolic acid, ursolic acid, quercetin and apigenin. and then for the first time successfully applied to the analysis of four analytes in Swertia mussotii Franch and its preparations. Various factors affecting the CZE ...
Huang Haiming H Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, Hebei 066004, PR China. Electronic address: - - 2014
This paper presents a study concerning ammonia removal from landfill leachate by struvite precipitation with the use of waste phosphoric acid as the phosphate source. The results indicated that the Al(3+) ions present in the waste phosphoric acid significantly affected the struvite precipitation, and a removal ratio of ammonia close ...
Khamar Dikshitkumar - - 2014
In previous work, it has been shown that the crystal nucleation of salicylic acid in different solvents becomes increasingly more difficult in the order: chloroform, ethyl acetate acetonitrile, acetone, methanol and acetic acid. In the present work, vibration spectroscopy, calorimetric measurements and Density Functional Theory calculations are used to reveal ...
Farrukh Affifa A Affifa Farrukh, John Francis Mayberry, Department of Digestive Diseases, University Hospitals of Leicester NHS Trust, Leicester General Hospital, Leicester LE5 4PW, United - - 2014
A number of animal and human studies suggest omega 3-fatty acids are anti-inflammatory. As a result they may have a therapeutic role in inflammatory bowel disease (IBD). The aim of this review is to briefly assess the literature about the utility of poly-unsaturated fatty acids (PUFAs) in the management of ...
Göring M M Department of Polymer Chemistry, Institute of Chemistry, Technische Universität Chemnitz, Strasse der Nationen 62, D-09111 Chemnitz, Germany. - - 2014
Amino-functionalized organic-inorganic hybrid materials with a narrow distributed nanostructure of 2-4 nm in size were obtained by means of a template-free and non-aqueous procedure. Simultaneous twin polymerization of novel amino group containing twin monomers with 2,2'-spirobi[4H-1,3,2-benzodioxasiline] has been applied for this purpose. The amino groups of the organic-inorganic hybrid material ...
Chi Zhe Z UNESCO Chinese Center of Marine Biotechnology, Ocean University of China , Qingdao , - - 2014
Abstract l-Malic acid has many uses in food, beverage, pharmaceutical, chemical and medical industries. It can be produced by one-step fermentation, enzymatic transformation of fumaric acid to l-malate and acid hydrolysis of polymalic acid. However, the process for one-step fermentation is preferred as it has many advantages over any other ...
Rakete Stefan S Institute of Chemistry, Food Chemistry, Martin-Luther-University Halle-Wittenberg , Kurt-Mothes-Straße 2, 06120 Halle/Saale, - - 2014
The degradation of isohumulones in mechanistic experiments was investigated. Incubation of trans-isohumulone in the presence of l-proline led to the formation of carboxylic acids and their corresponding proline amides. In the context of isohumulones unknown amides were verified first in model incubations and then in beer for the first time ...
Noble Adam - - 2014
A new coupling protocol has been developed that allows the union of vinyl sulfones with photoredox-generated α-amino radicals to provide allylic amines of broad diversity. Direct C-H vinylations of N-aryl tertiary amines, as well as decarboxylative vinylations of N-Boc α-amino acids, proceed in high yield and with excellent olefin geometry ...
Sarkar Bipul B Catalytic Conversion & Processes Division, CSIR-Indian Institute of Petroleum, Dehradun 248005, India. - - 2014
A material consisting of highly dispersed Cu nanoclusters anchored on nanocrystalline SiO2-MnO2 has been prepared, and was found to act as a bifunctional catalyst for the one- step conversion of glycerol to acrylic acid using H2O2. Under optimized conditions a glycerol conversion of 77.1%, with 74.7% selectivity for acrylic acid, ...
Robb P J PJ Department of Otolaryngology,Epsom and St Helier University - - 2014
Background: Tranexamic acid is a synthetic antifibrinolytic drug. It has been widely available for over 40 years, but only recently has it started to be used routinely in many surgical disciplines. For ENT surgeons, epistaxis and post-tonsillectomy bleeding contribute a significant proportion of the morbidity and emergency workload in a ...
Matsubara Kohei K Molecular Enzyme Technology and Biochemistry, University of Duisburg-Essen, Universitätsstrasse 5, 45117 Essen, - - 2014
2-Keto-3-deoxy-sugar acids are key intermediates of central metabolism and integral constituents of bacterial (lipo)polysaccharides and cell wall components and are therefore continuously and highly demanded in related research fields. The stereospecific chemical synthesis of chiral 2-keto-deoxy-sugar acids involves a multitude of reaction steps, while in metabolic pathways only few conversions ...
Kumar Vineet V Chemistry Division, Forest Research Institute, Dehradun-248006 India. Electronic address: - - 2014
Polysaccharides containing uronic acids are of immense biological significance. Colorimetric methods using different chromogens have been explored for uronic acid estimation in polysaccharides but these methods counter numerous difficulties, when neutral sugars are present in substantial amount. The uronic acid content of cold water-soluble polysaccharide (CWSP) and hot water soluble ...
Le Nôtre Jérôme J Chair of Biobased Commodity Chemistry, Wageningen University & Research Centre, P.O. Box 17, 6700AA Wageningen (The Netherlands), Fax: - - 2014
Methacrylic acid, an important monomer for the plastics industry, was obtained in high selectivity (up to 84 %) by the decarboxylation of itaconic acid using heterogeneous catalysts based on Pd, Pt and Ru. The reaction takes place in water at 200-250 °C without any external added pressure, conditions significantly milder than those ...
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