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Lin Keying K State Key Laboratory Cultivation Base of Natural Gas Conversion, College of Chemistry, Ningxia University, Yinchuan 750021, - - 2014
Liquid sulphuric acid is adopted and compared with carbon-based sulfonated solid acids (coal tar-based and active carbon-based) for furfural residues conversion into reducing sugars. The optimum hydrolysis conditions of liquid acid are at 4% of sulphuric acid, 25:1 of liquid and solid ratio, 175°C of reaction temperature and 120min of ...
Groninger-Poe Fiona P - - 2014
The genome of Agrobacterium tumefaciens C58 encodes twelve members of the enolase superfamily (ENS), eight of which are members of the mandelate racemase (MR) subgroup and, therefore, likely to be acid sugar dehydratases. Using a library of 77 acid sugars for high throughput screening, one protein (UniProt accession ID A9CG74; ...
Kudo Fumitaka F Department of Chemistry, Tokyo Institute of Technology, 2-12-1, O-okayama, Meguro-ku, Tokyo 152-8551, Japan. - - 2014
Covering: up to January, 2014We focus here on β-amino acids as components of complex natural products because the presence of β-amino acids produces structural diversity in natural products and provides characteristic architectures beyond those of ordinary α-l-amino acids, thus generating significant and unique biological functions in nature. In this review, ...
Gatter Michael M Institute of Microbiology, Dresden University of Technology, Zellescher Weg 20b, 01217, - - 2014
Nine potential (fatty) alcohol dehydrogenase genes and one alcohol oxidase gene were identified in Yarrowia lipolytica by comparative sequence analysis. All relevant genes were deleted in Y. lipolytica H222ΔP which is lacking β-oxidation. Resulting transformants were tested for their ability to accumulate ω-hydroxy fatty acids and dicarboxylic acids in the ...
Di Giulio Massimo M Early Evolution of Life Laboratory, Institute of Biosciences and Bioresources, CNR, Via P. Castellino, 111, 80131, Naples, Italy, - - 2014
The phylogenetic analyses as far as the identification of the number of domains of life is concerned have not reached a clear conclusion. In the attempt to improve this circumstance, I introduce the concept that the amino acids codified in the genetic code might be of markers with outstanding phylogenetic ...
Liu Changyong C Biomanufacturing Engineering Laboratory, Graduate School at Shenzhen, Tsinghua University, Shenzhen, - - 2014
Scaffolds are of great importance to the success of tissue engineering. Poly(l-lactide-co-glycolide) acid is one of the most commonly used biopolymers. This study develops a novel low-temperature deposition machine using screw extrusion to fabricate poly(l-lactide-co-glycolide) acid scaffolds. The screw extrusion process of poly(l-lactide-co-glycolide) acid is analysed, and the relationship between ...
Evans Simon J SJ Department of Psychiatry, University of Michigan, United States. Electronic address: - - 2014
Polyunsaturated fatty acids (PUFA) profiles associate with risk for mood disorders. This poses the hypothesis of metabolic differences between patients and unaffected healthy controls that relate to the primary illness or are secondary to medication use or dietary intake. However, dietary manipulation or supplementation studies show equivocal results improving mental ...
Kim Soomin S Department of Chemistry and Nano Science, Ewha Global Top 5 Program, Ewha Womans University, Seoul 120-750, Korea. - - 2014
The terminal amino groups of peptoids have often been protected with acetyl groups to improve cell permeability and therapeutic potential, and to prevent the poisoning of the catalysts in organometallic reactions. Interestingly, the unusual truncation of the terminal peptoid unit has sometimes been encountered when the acetylated linear peptoids were ...
Wang Hou H College of Environmental Science and Engineering, Hunan University, Changsha, 410082, Hunan, People's Republic of - - 2014
Natural adsorbent (Cinnamomum camphora sawdust) modified by organic acid (oxalic acid, citric acid, and tartaric acid) was investigated as a potential adsorbent for the removal of hazardous malachite green (MG) dye in aqueous media in a batch process. The extent of MG adsorption onto modified sawdust increased with increasing organic ...
Makida Yusuke Y EaStCHEM School of Chemistry, University of St Andrews, North Haugh, St Andrews, KY16 9ST, UK. - - 2014
A nickel/N-heterocyclic carbene (NHC) catalysed carboxylation of aryl-, heteroaryl- and alkenylboronates, affording the corresponding carboxylic acids, has been developed. This transformation proceeds under one atmosphere of CO2 with a broad range of substrates and exhibits good functional group compatibility.
Zhou Shengbin S State Key Laboratory of Drug Research, CAS Key Laboratory of Receptor Research Department, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203 (P. R. - - 2014
The first chemical method for resolution of N,C-unprotected β-amino acids was developed through enantioselective formation and disassembly of nickel(II) complexes under operationally convenient conditions. The specially designed chiral ligands are inexpensive and can be quantitatively recycled along with isolation of the target β-substituted-β-amino acids in good yields and excellent enantioselectivity. ...
Stefański T T Academic Centre for Dentistry, Bytom, - - 2014
Frequent consumption of acidic beverages is related to excessive tooth wear, namely dental erosion. Preventive measures may involve reduction or elimination of acidic drink consumption. However, the success of this approach is difficult to achieve as it is highly dependent on patient compliance. Therefore, a practical way of minimizing the ...
Jeennor Sukanya S Fermentation Technology and Biochemical Engineering Laboratory, Bioresources Technology Unit, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Thailand Science Park, Pathum Thani - - 2014
We identified a novel elongase gene from a selected strain of the Oomycete, Pythium sp. BCC53698. Using a PCR approach, the cloned gene (PyElo) possessed an open reading frame (ORF) of 834 bp encoding 277 amino acid residues. A similarity search showed that it had homology with the PUFA elongases ...
Jia Juntao J Technological Center, Shandong Entry-Exit Inspection and Quarantine Bureau, 266002, Qingdao, - - 2014
Vibrio parahaemolyticus is a common foodborne bacterial pathogen, which survives in cold environments and is sometimes difficult to culture. Fatty acid analysis under cold stress was conducted for several V. parahaemolyticus strains using gas chromatography/mass spectrometry, and the results were compared with those of the controls. All the fatty acid ...
Park Hyunwoo H Department of Agronomy and Horticulture, University of Nebraska-Lincoln, Lincoln, NE, USA; Center for Plant Science Innovation, University of Nebraska-Lincoln, Lincoln, NE, - - 2014
Soybean (Glycine max (L.) Merr) is valued for both its protein and oil, whose seed is composed of 40% and 20% of each component, respectively. Given its high percentage of polyunsaturated fatty acids, linoleic acid and linolenic acid, soybean oil oxidative stability is relatively poor. Historically food processors have employed ...
Catenazzi Maria Chiara E MC Department of Biology, University of York, Heslington, York, YO10 5DD, - - 2014
Neisseria meningitidis is an important human pathogen that is capable of killing within hours of infection. Its normal habitat is the nasopharynx of adult humans. Here we identify a genomic island (the prp gene cluster) in N. meningitidis that enables this species to utilize propionic acid as a supplementary carbon ...
Vivek Hamse K HK Department of Biotechnology, Sri Jayachamarajendra College of Engineering, Mysore-570006, - - 2014
Secretory Phospholipases A2 (sPLA2's) are present in snake venoms, serum, biological fluids of patients with various inflammatory, autoimmune and allergic disorders. Lipid mediators, in the inflammatory processes have potential value of controlling phospholipids metabolism through sPLA2 inhibition. Thus it demands the need for screening of potential leads for sPLA2 inhibition. ...
Sett Arghya A Bioengineering Research Laboratory, Department of Biotechnology, Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, - - 2014
Efforts to replace conventional chromatographic methods for environmental monitoring with cheaper and easy to use biosensors for precise detection and estimation of hazardous environmental toxicants, water or air borne pathogens as well as various other chemicals and biologics are gaining momentum. Out of the various types of biosensors classified according ...
Yu Zhiliang Z College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou, China, - - 2014
L-Amino acid oxidase (LAAO) is widely distributed in many different organisms and found to play important biological roles, thus attracting a great deal of attention for characterization of its activity. Diverse detection methods with their own properties have been established. This review advanced different LAAO activity assays based on substrate ...
Gerbig Dennis - - 2014
Quantum mechanical tunneling governs the C-O bond rotamerization of simple alkyl and aryl carboxylic acid conformers at cryogenic temperatures. In this study, we report tunneling investigations on a series of electronically different α-ketocarboxylic acids including glyoxylic, pyruvic, cyclopropylglyoxylic and phenylglyoxylic acid in solid Ar and Ne as host materials at ...
Govindarajan Sridhar - - 2014
We have used Design of Experiments (DOE) and systematic variance to efficiently explore glutathione transferase substrate specificities caused by amino acid substitutions. Amino acid substitutions selected using phylogenetic analysis were synthetically combined using a DOE design to create an information-rich set of gene variants, termed infologs. We used machine learning ...
Ferroni Claudia C CNR Institute of Organic Synthesis and Photoreactivity, Via P. Gobetti, 101, Bologna, 40129, - - 2014
Pyrethroids are synthetic derivatives of naturally occurring pyrethrum. These molecules are widely used in agriculture for ant, flies and mosquito control and for lawn and garden care. Pyrethroids are the optically active esters of 2,2-dimethyl-3-(2-methylpropenyl)-cyclopropane carboxylic acid, also known as chrysanthemic acid. However, their intense use resulted in the development ...
Kusche Daniel D Kassel University, Faculty of Organic Agricultural Sciences, Nordbahnhofstraße 1a, 37213, Witzenhausen, - - 2014
Intensification of organic dairy production leads to the question if the implementation of intensive feeding incorporating maize silage and concentrates was altering milk quality. Therefore the fatty acid (FA) profiles and antioxidants (AO) of milk on 24 farms divided in 4 system groups in 3 replications (n = 71) during outdoor period ...
Yan Bo B Innovative Catalysis Program, Key Lab of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, 10084 (PR - - 2014
Gas-phase dehydration of lactic acid (LA) to acrylic acid (AA) was investigated over alkali-exchanged β zeolite (Mx Na1-x β, M=Li(+) , K(+) , Rb(+) , or Cs(+) ) of different exchange degrees (x). The reaction was conducted under varying conditions to understand the catalyst selectivity for AA production and trends ...
de la Torre Fernando F Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, Universidad de Málaga, Campus Universitario de Teatinos, 29071 Málaga, - - 2014
In the chloroplasts and in non-green plastids of plants, aspartate is the precursor for the biosynthesis of different amino acids and derived metabolites that play distinct and important roles in plant growth, reproduction, development or defence. Aspartate biosynthesis is mediated by the enzyme aspartate aminotransferase (EC 2.6.1.1), which catalyses the ...
Drexler Chad I - - 2014
Hybrid chemical patterning strategies that combine the sophistication of lithography with the intrinsic precision of molecular self-assembly are of broad interest for applications including nanoelectronics and bioactive surfaces. This approach is exemplified by the molecular-ruler process where the sequential deposition of mercaptoalkanoic acid molecules and coordinated metal ions is integrated ...
Rajaram Sujatha S From the Department of Nutrition, School of Public Health, Loma Linda University, Loma Linda, - - 2014
α-Linolenic acid (ALA) is an n-3 (ω-3) fatty acid found mostly in plant foods such as flaxseed, walnuts, and vegetable oils, including canola and soybean oils. Most of the health benefits observed for n-3 fatty acids have been attributed to the marine-derived long-chain n-3 fatty acids eicosapentaenoic acid (EPA) and ...
Lund Peter P School of Biosciences, University of Birmingham, Birmingham, - - 2014
As part of their lifecycle neutralophilic bacteria are often exposed to varying environmental stresses, amongst which fluctuations in pH are the most frequent. In particular, acid environments can be encountered in many situations from fermented food to the gastric compartment of the animal host. Herein we review the current knowledge ...
Choi Youngbo Y World Class University Program of Chemical Convergence for Energy & Environment, Institute of Chemical Processes, School of Chemical and Biological Engineering, College of Engineering, Seoul National University, Seoul 151-742, Republic of Korea. - - 2014
A facile and efficient approach to prepare hierarchically and radially mesoporous nano-catalysts with tunable acidic properties has been successfully developed. The nanospheres show excellent catalytic performance for the acid catalysed reactions, i.e. cracking of 1,3,5-triisopropylbenzene and hydrolysis of sucrose.
Harris William S WS From Health Diagnostic Laboratory Inc, Richmond, VA; OmegaQuant Analytics LLC, Sioux Falls, SD; and Department of Medicine, Sanford School of Medicine, University of South Dakota, Sioux Falls, - - 2014
The long chain n-3 (omega-3) fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), although originally synthesized by microorganisms in the oceans, are primarily obtained from the consumption of fish. Vegetarians, by definition, do not eat fish and thus consume virtually no EPA and DHA. Because conversion of the plant-derived ...
Waldron Nick R NR Children's Surgical Centre, Phnom Penh, Cambodia. Electronic address: - - 2014
Acid violence is the deliberate use of acid to attack another human being. Such attacks leave a terrible human, medical and surgical legacy. This study, from one of the largest cohorts of acid attack victims to date, provides insights into Cambodia's unique demographics of such attacks, as well as the ...
Gavara Raquel - - 2014
In the frame of the metamorphosis chemistry, where complexity is achieved at the bottom, a multistate system based on 4'-carboxy-7-hydroxyflavylium is described. Twelve species reversibly interconverted by pH and light stimuli were identified at the equilibrium or as transients. The carboxylic substituent deprotonates at moderately acidic pH values and by ...
Thompson R Adam RA Bredesen Center for Interdisciplinary Research and Graduate Education, The University of Tennessee, Knoxville, TN, - - 2014
Biodiesels in the form of fatty acyl ethyl esters (FAEEs) are a promising next generation biofuel due to their chemical properties and compatibility with existing infrastructure. It has recently been shown that expression of a bacterial acyl-transferase in the established industrial workhorse Saccharomyces cerevisiae can lead to production of FAEEs ...
Castañeda-Arriaga Romina - - 2014
The free radical scavenging activity of lipoic acid (LA) and dihydrolipoic acid (DHLA) has been studied in non-polar and aqueous solutions, using the Density Functional Theory and several oxygen centered radicals. It was found that lipoic acid is capable of scavenging only very reactive radicals, while the dehydrated form is ...
Bullwinkle Tammy T Department of Microbiology , Ohio State University , Columbus , United - - 2014
Aminoacyl-tRNA synthetases use a variety of mechanisms to ensure fidelity of the genetic code and ultimately select the correct amino acids to be used in protein synthesis. The physiological necessity of these quality control mechanisms in different environments remains unclear, as the cost versus benefit of accurate protein synthesis is ...
Castro-Gómez Pilar P Department of Bioactivity and Food Analysis, Lipid Group, Institute of Food Science Research (CIAL), CSIC-UAM, Autónoma University of Madrid, Nicolás Cabrera, 9, 28049, Madrid, - - 2014
Isolation is the main bottleneck in the analysis of fatty acids in biological samples and foods. In the last few decades some methods described direct derivatization procedures bypassing these steps. They involve the utilization of methanolic HCL or BF3 as catalysts, but several evidences from previous works suggest these reagents ...
Martin Camilia R CR NICU, Department of Neonatology, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Rose-318, Boston, MA 02215, USA; Division of Translational Research, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA 02215, USA. Electronic address: - - 2014
Challenges remain in optimizing the delivery of fatty acids to attain their nutritional and therapeutic benefits in neonatal health. In this review, knowledge about placental transfer of fatty acids to the developing fetus is summarized, the potential role and mechanisms of fatty acids in enhancing neonatal health and minimizing morbidities ...
Bayes Stephen K SK Department of Environmental Science, Policy and Management, University of California, Berkeley, CA, 94720-3114, USA, - - 2014
Tracking the movement of small organisms is of tremendous importance to understanding the ecology of populations, communities, and ecosystems. However, it remains one of the most difficult challenges facing the field of movement ecology. We developed an intrinsic marking technique for tracking small organisms using dietary fatty acid profiles as ...
Meijer Alfred J AJ Department of Medical Biochemistry, Academic Medical Center, University of Amsterdam, Meibergdreef 15, 1105 AZ, Amsterdam, The Netherlands, - - 2014
Amino acids not only participate in intermediary metabolism but also stimulate insulin-mechanistic target of rapamycin (MTOR)-mediated signal transduction which controls the major metabolic pathways. Among these is the pathway of autophagy which takes care of the degradation of long-lived proteins and of the elimination of damaged or functionally redundant organelles. ...
Kaluzny L L Department of Pediatric Gastroenterology and Metabolism, I Chair of Pediatrics, Poznan University of Medical Sciences, Szpitalna, Poznan, Poland. - - 2014
Parenteral nutrition is now a standard part of supportive treatment in pediatric departments. We describe four cases in which parenteral nutrition was extremely difficult due to coincidence with inborn errors of metabolism. The first two cases was fatty acid beta-oxidation disorders associated with necrotizing enterocolitis and congenital heart disease. Thus, ...
Mathias Rasika A RA Division of Allergy and Clinical Immunology, Department of Medicine, The Johns Hopkins University, Baltimore, MD 21224, - - 2014
Unequivocally, genetic variants within the fatty acid desaturase (FADS) cluster are determinants of long chain polyunsaturated fatty acid (LC-PUFA) levels in circulation, cells and tissues. A recent series of papers have addressed these associations in the context of ancestry; evidence clearly supports that the associations are robust to ethnicity. However ...
Yu Ch Ch United Christian Hospital, Kowloon, Hong - - 2014
To study the percentage of pregnant women who consumed omega-3 fatty acids in the course of pregnancy, and to assess their knowledge on the source and potential health benefits of these supplements. An anonymous self- administered questionnaire on the use and knowledge of omega-3 fatty acids was distributed to the ...
Lau Danny C P - - 2014
Dystrophic lakes are widespread in temperate regions and intimately interact with surrounding terrestrial ecosystems in energy and nutrient dynamics, yet the relative importance of autochthonous and allochthonous resources to consumer production in dystrophic lakes remains controversial. We argue that allochthonous organic matter quantitatively dominates over photosynthetic autotrophs in dystrophic lakes, ...
Etto Rafael Mazer RM Department of Chemistry, Universidade Estadual de Ponta Grossa, CEP 84030-900, Ponta Grossa, Paraná, Brazil. Electronic address: - - 2014
The acidic peatlands of southern Brazil are essential for maintenance of the Atlantic Rain Forest, one of the 25 hot-spots of biodiversity in the world. While these ecosystems are closely linked to conservation issues, their microbial community ecology and composition remain unknown. In this work, histosol samples were collected from ...
Ralla Bernhard B Department of Urology, Charité - Universitätsmedizin Berlin , Berlin , Germany - - 2014
Abstract This review focuses on the promising potential of nucleic acids in body fluids such as blood and urine as diagnostic, prognostic, predictive and monitoring biomarkers in urologic malignancies. The tremendous progress in the basic knowledge of molecular processes in cancer, as shown in the companion review on nucleic acid-based ...
Monaco Mattia Riccardo MR Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr - - 2014
Organocatalysis, catalysis using small organic molecules, has recently evolved into a general approach for asymmetric synthesis, complementing both metal catalysis and biocatalysis.1 Its success relies to a large extent upon the introduction of novel and generic activation modes.2 Remarkably though, while carboxylic acids have been used as catalyst directing groups ...
Fan Chenguang C Department of Molecular Biophysics and Biochemistry, Yale University, 266 Whitney Avenue, New Haven, CT 06520 - - 2014
We tested the substrate range of four wild-type E. coli aminoacyl-tRNA synthetases (AARSs) with a library of nonstandard amino acids (nsAAs). Although these AARSs could discriminate efficiently against the other canonical amino acids, they were able to use many nsAAs as substrates. Our results also show that E. coli tryptophanyl-tRNA ...
Kukkonen Anna Kaarina AK The Skin and Allergy Hospital, University of Helsinki - - 2014
Turnip rapeseed oil-rich in essential fatty acids and vitamin E- is a significant source of vegetable oils in the diet. Its fatty acid composition is ideal, and in addition to its current use in baby foods and margarines, components of turnip rapeseed may be increasingly used in the future. The ...
Vecino Xanel - - 2014
Corn steep liquor (CSL) is a liquid by-product generated by the corn wet-milling industry. This agro-industrial residue is obtained when corn is digested with warm water and SO2 in the presence of different spontaneously growing microorganisms. The microbial population of CSL includes lactic acid bacteria, which are widely known to ...
Sugimoto Osamu O Laboratory of Organic Chemistry, School of Food and Nutritional Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan. - - 2014
The reaction of carboxylic acids with Mitsunobu reagents, prepared by the reaction of triphenylphosphine with dialkyl azodicarboxylates, followed by heating at 180-190 °C under solvent-free conditions, afforded 3-alkyl-5-aryl-1,3,4-oxadiazol-2(3H)-ones. This facile and convenient method readily provides the 1,3,4-oxadiazolone ring systems in good yields using a one-pot protocol starting from the corresponding ...
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