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Wu Di D College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China. Electronic address: - - 2014
Developing rapid methods for measuring long-chain ω-3 (n-3) poly-unsaturated fatty acid (LCPUFA) contents has been a crucial request from the algal oil industry. In this study, four spectroscopy techniques, namely visible and short-wave near infra-red (Vis-SNIR), long-wave near infra-red (LNIR), mid-infra-red (MIR) and nuclear magnetic resonance (NMR) spectroscopy, were exploited ...
Hussein S Z SZ Department of Biochemistry, Faculty of Medicine; University Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300 Kuala Lumpur, - - 2014
Honey is a supersaturated solution of sugars, enriched with proteins, minerals, vitamins, organic acids and polyphenols. Gamma irradiation is a physical technique of food preservation which protects the honey from insects' and microbial contamination during storage. We investigated the effect of gamma irradiation on physicochemical properties in two types of ...
Mathiyalagan Ramya R a Graduate School of Biotechnology and Ginseng Bank, College of Life Sciences, Kyung Hee University , Yongin , Republic of - - 2014
The ginsenosides in Panax ginseng have vast structural and pharmacological efficacies. We covalently conjugated polyethylene glycol on the surface of CK (PEG-CK) through an acid-labile ester-linkage that showed increased solubility of CK. HPLC analysis showed that the release of CK was enhanced at acidic pH 5, whereas it was dramatically ...
Masoud M S MS Faculty of Science, Chemistry Department, Alexandria University, Alexandria, - - 2014
The reaction of (99m)Tc pertechnetate with 5,5'-diethyl barbituric acid, adenine, d-glucose and thiobarbituric acid at different temperatures was studied. The solvent effect on the electronic absorption spectra of the reactions was recorded. The reaction mixtures have been analyzed at different times using TLC and a radiodetctor to show the peaks ...
Chi Maoqiang M Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, Changchun 130012, PR - - 2014
A novel poly(amic acid) with pendant aniline tetramer and sulfonic acid groups (ESPAA) was synthesized by ternary polymerization and characterized by Fourier-transform infrared spectra, ((1))H NMR and gel permeation chromatography. The polymer showed good thermal stability and excellent solubility in the common organic solvents. The electrochemical properties were investigated carefully ...
Oguri Masashi M Analytical Science Research Laboratories, Kao Corporation, Akabane 2606, Ichikai, Haga, Tochigi 321-3497, Japan; Leiden/Amsterdam Center for Drug Research, Department of Drug Delivery Technology, Leiden University, Einsteinweg 55, 2333 CC Leiden, the - - 2014
The stratum corneum (SC) plays a fundamental role in the barrier function of skin. The SC consists of corneocytes embedded in a lipid matrix. The main lipid classes in the lipid matrix are ceramides (CERs), cholesterol (CHOL) and free fatty acids (FFAs). The aim of this study was to examine ...
Liu Xiaofang X Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR - - 2014
In the present work, a novel strategy based on overoxidized polyimidazole (PImox) and graphene oxide (GO) copolymer modified electrode was proposed for the simultaneous determination of ascorbic acid (AA), dopamine (DA), uric acid (UA), guanine (G) and adenine (A). The copolymer was characterized by the scanning electron microscopy (SEM), atomic ...
Jo Ara A Department of Chemistry & Nano Science, Ewha Womans University, Seoul 120-750, Republic of - - 2014
We report a new nonenzymatic amperometric detection of ascorbic acid (AA) using a glassy carbon (GC) disk electrode modified with hollow gold/ruthenium (hAu-Ru) nanoshells, which exhibited decent sensing characteristics. The hAu-Ru nanoshells were prepared by the incorporation of Ru on hollow gold (hAu) nanoshells from Co nanoparticle templates, which enabled ...
Wang Zhi-Li ZL Key Laboratory of Automobile Materials, Ministry of Education, Department of Materials Science and Engineering, Jilin University, Changchun 130022, China. - - 2014
AuPd-CeO2 nanocomposites directly nucleated and grown on nitrogen-doped reduced graphene oxide, exhibit excellent catalytic activity and 100% hydrogen selectivity toward formic acid decomposition for hydrogen generation without any additives at room temperature.
Golbahar J J Department of Molecular Medicine, College of Medicine and Medical Sciences, AGU, Manama, Kingdom of Bahrain / Diagnostic Services, Biochemical Genetic Unit, Princess Al-Jawhara Centre for Genetic Diagnosis and Research, Manama, Kingdom of - - 2014
Tandem mass spectrometry is increasingly used in the Middle East in newborn screening for inborn errors of metabolism using dried blood spots. The sensitivity and specificity of this system for analyzing fatty and amino acids, screening for more than 40 metabolic conditions, is known. However, the short term stability of ...
Boddu Sai H S SH Department of Pharmacy Practice, College of Pharmacy and Pharmaceutical Sciences, The University of Toledo , Toledo, OH , - - 2014
Abstract Objective: This study deals with the preparation and evaluation of a pluronic lecithin organogel (PLO gel) containing ricinoleic acid for the transdermal eyelid delivery of dexamethasone and tobramycin. Methods: Five different PLO gel formulations (F1, F2, F3, F4 and F5) containing tobramycin (0.3%) and dexamethasone (0.1%) were prepared and ...
Demma Carà Piera P Istituto per lo Studio dei Materiali Nanostrutturati, CNR via U. La Malfa 153, 90146 Palermo (Italy); Dipartimento Sistemi Agro-Ambientali, Università degli Studi di Palermo viale delle Science, 90128 Palermo - - 2014
We study the catalytic condensation of furfuryl alcohol with 1-butanol to butyl levulinate. A screening of several commercial and as-synthesized solid acid catalysts shows that propylsulfonic acid-functionalized mesoporous silica outperforms the state-of-the-art phosphotungstate acid catalysts. The catalyst is prepared via template-assisted sol-gel polycondensation of TEOS and MPTMS. It gives 96 % ...
Hu Shuang-Lan - - 2014
A new sucralose-derived solid acid catalyst (SUCRA-SO3H), containing -Cl and -SO3H functional groups has been shown to be highly effective for hydrolyzing β-1,4-glucans, completely hydrolyzing cellobiose (1) into glucose (2) in 3 hours and converting the microcrystalline cellulose pretreated by the ionic liquid into glucose (2) with a yield of ...
Sharma Gaurav G Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, - - 2014
The present study reports the simultaneous analysis of 26 physiological amino acids in plasma along with total cysteine and homocysteine by high-performance liquid chromatography (HPLC) employing 6-aminoquinolyl-N-hydroxysuccinimidyl carbamate (AQC) as precolumn derivatizing reagent. Separations were carried out using Lichrospher 100 RP-18e (5 μm) 250 × 4.0 mm column connected to 100 CN 4.0 × 4.0 mm guard ...
Wang Jun J School of Biology and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212018, PR China; School of the Environment, Jiangsu University, Zhenjiang 212013, PR China. Electronic address: - - 2014
Caffeic acid phenethyl ester (CAPE) is a rare natural ingredient with several biological activity, but the industrial production of CAPE using lipase-catalyzed esterification of caffeic acid (CA) and 2-phenylethanol (PE) in ionic liquids is hindered by low substrate concentrations and a long reaction time. To establish a high-efficiency bioprocess for ...
Rodriguez Mary Ana Petersen MA University of São Paulo, PO Box 9, CEP 13418-900 Piracicaba, SP, - - 2014
Considering the milk fatty acid influence on human health, the aim of this study was to compare gas chromatography (GC) and Fourier transform infrared (FTIR) spectroscopy for the determination of these compounds. Fatty acid content (g/100g of fat) were obtained by both methods and compared through Pearson's correlation, linear Bayesian ...
Aguilar-Galvez Ana A Instituto de Biotecnología (IBT), Universidad Nacional Agraria La Molina (UNALM), Av. La Molina s/n, Lima, - - 2014
Gallotannins obtained from tara pod extracts (EE) and from the products of acid hydrolysis for 4 and 9h (HE-4 and HE-9) were characterised for their composition, antioxidant activity, antimicrobial activity (AA) and minimum inhibitory concentration (MIC). Results of AA and MIC showed that EE exerted the highest inhibitory activity against ...
Fukuyama Yuko Y Koichi Tanaka Laboratory of Advanced Science and Technology, Shimadzu Corporation , 1, Nishinokyo-Kuwabaracho, Nakagyo-ku, Kyoto 604-8511, - - 2014
Glycosylation and phosphorylation are important post-translational modifications in biological processes and biomarker research. The difficulty in analyzing these modifications is mainly their low abundance and dissociation of labile regions such as sialic acids or phosphate groups. One solution in matrix-assisted laser desorption/ionization (MALDI) mass spectrometry is to improve matrices for ...
Tao Yongxin - - 2014
Poly(L-glutamic acid)/beta-cyclodextrin (P-L-Glu/β-CD) modified glassy carbon electrode (GCE) was prepared by electrochemical polymerization of L-glutamic acid on GCE and subsequent self-assembly of β-CD onto the obtained P-L-Glu. Electrochemical recognition of tryptophan (Trp) enantiomers with the P-L-Glu/β-CD was investigated by differential pulse voltammetry (DPV), and the results show that Trp enantiomers ...
Han Jin J 302 Military Hospital of China, Beijing 100039, - - 2014
The anti-bacterial activities of three types of di-O-caffeoylquinic acids (diCQAs) in Lonicera japonica flowers, a traditional Chinese medicine (TCM), on Bacillus shigae growth were investigated and compared by microcalorimetry. The three types of diCQAs were 3, 4-di-O-caffeoylquinic acid (3, 4-diCQA), 3, 5-di-O-caffeoylquinic acid (3, 5-diCQA), and 4, 5-di-O-caffeoylquinic acid (4, ...
Zhao Peng P Engineering Research Center of Sustainable Development and Utilization of Biomass Energy, Ministry of Education, Kunming 650500, China; College of Life Sciences and Biotechnology, Kunming University of Science and Technology, Kunming 650500, - - 2014
To improve lipid productivity, co-cultivation of Chlorella sp. U4341 and Monoraphidium sp. FXY-10 for lipid production was studied. Compared with mono-cultivations, co-cultivation of the two microalgae significantly increased the accumulation of total biomass and total lipid yield, and enhanced the lipid productivity (29.52 mg L(-1) d(-1)). Fatty acid compositions significantly varied in different ...
Mai Van Chung VC Department of Plant Physiology, Poznań University of Life Sciences, Wołyńska 35, 60-637 Poznań, Poland; Department of Plant Physiology, Vinh University, Le Duan 182, Vinh City, Viet - - 2014
This study demonstrates the sequence of enhanced generation of signal molecules such as phytohormones, i.e. jasmonic acid (JA), ethylene (ET), salicylic acid (SA), and a relatively stable free radical, nitric oxide (NO), in response of Pisum sativum L. cv. Cysterski seedling leaves to the infestation of pea aphid Acyrthosiphon pisum ...
Yang Yu Jun YJ School of Chemistry and Chemical Engineering, Xuchang University, Xuchang, Henan 461000, China. Electronic address: - - 2014
We have developed hexadecyl trimethyl ammonium bromide (CTAB) functionalized graphene oxide (GO)/multiwalled carbon nanotubes (MWNTs) modified glassy carbon electrode (CTAB-GO/MWNT) as a novel system for the simultaneous determination of dopamine (DA), ascorbic acid (AA), uric acid (UA) and nitrite (NO2(-)). The combination of graphene oxide and MWNTs endow the biosensor ...
Yang Mei - - 2014
Rapeseeds were treated with microwaves under 800 W for 0, 1, 2, 3, 4, 5, 6, 7, and 8 min at a frequency of 2,450 MHz and oil was extracted with a press to investigate influence on phenolic compounds, including sinapine, the main free phenolic acids, and canolol content in ...
Craig Norman C - - 2014
As shown by the rates of proton-deuteron exchange in ethylenes with halogen substituents, the weak acidity of vinyl CH bonds is enhanced by halogen substitution. Relative rates of exchange in basic deuterium oxide reflect the relative acidities. Substitution in the α position has the strongest effect. Less electronegative halogens such ...
Das Ratul Kumar RK Bioprocessing And Nano-Enzyme Formulation Facility (BANEFF), INRS-ETE, Université du Québec, 490 Rue de la Couronne, Québec, QC, G1K 9A9, - - 2014
The present work explores brewery wastewater as a novel substrate for fumaric acid production employing the filamentous fungal strain Rhizopus oryzae 1526 through submerged fermentation. The effects of different parameters such as substrate total solid concentrations, fermentation pH, incubation temperature, flask shaking speed, and inoculum size on the fungal morphologies ...
Ma Jin-Kui JK Faculty of Bioresource Sciences, Akita Prefectural University, Akita, - - 2014
This study was carried out to investigate the frying performance of Kizakinonatane (Brassica napus) oil during deep-fat frying of frozen French fries with/without replenishment. Commercial regular canola oil was used for comparison. The frying oils were used during intermittent frying of frozen French fries at 180, 200, and 220  for ...
Van Oers Cynthia J - - 2014
A new combination of a volumetric with a dynamic method to investigate the acidity properties of aluminosilicates is introduced. In a first step, the total acidity is determined volumetrically by the measurement of two-cycle adsorption (TCA) isotherms with ammonia as probe, directly followed by a dynamic temperature programmed desorption (TPD) ...
Finkler Björn B Biophysical Chemistry, Saarland University, Campus B2 2, 66123 Saarbrücken, Germany. - - 2014
The photoacid 8-hydroxypyren-1,3,6-trisulfonic acid (HPTS, pyranine) is a widely used model compound for the examination of excited state proton transfer (ESPT). We synthesized five "super"-photoacids with varying hydrophilicity and acidity on the basis of HPTS. By chemical modification of the three sulfonic acid substituents, the photoacidity is enhanced by up ...
Valapa Ravi Babu RB Research Scholar, Department of Chemical Engineering, Indian Institute of Technology Guwahati, Assam-781039. Electronic address: - - 2014
The current work is focused on investigating the influence of novel bio-filler, "sucrose palmitate (SP)" on the thermal degradation behavior of poly(lactic acid) (PLA) biocomposites in order to render its suitability for food packaging application. Thermal degradation behavior of the PLA biocomposites was investigated by thermo-gravimetric analysis (TGA) using dynamic ...
Mengistie Desalegn Alemu - - 2014
We proposed a facile film treatment with formic acid to enhance the conductivity of poly(3,4-ethylenedioxythiophene): poly(styrene sulfonate) (PEDOT:PSS) by four orders of magnitude. The effect of formic acid concentration on conductivity was investigated; conductivity increased fast with increasing concentration up to 10M and then increased slightly, the highest conductivity being ...
Suganya Tamilarasan T Department of Chemical Engineering, Alagappa College of Technology, Anna University, Chennai 600025, - - 2014
In situ transesterification of Enteromorpha compressa algal biomass was carried out for the production of biodiesel. The maximum methyl esters (ME) yield of 98.89% was obtained using ultrasonic irradiation. Tetra hydro furan (THF) and acid catalyst (H2SO4) was found to be an appropriate co-solvent and catalyst for high free fatty ...
Hendry Katharine R KR 1] School of Earth and Ocean Sciences, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK [2] Department of Earth Sciences, Bristol University, Wills Building, Queen's Road, Bristol BS8 1RJ, UK [3] Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02543, - - 2014
Today's Sargasso Sea is nutrient starved, except for episodic upwelling events caused by wind-driven winter mixing and eddies. Enhanced diatom opal burial in Sargasso Sea sediments indicates that silicic acid, a limiting nutrient today, may have been more available in subsurface waters during Heinrich Stadials, millennial-scale climate perturbations of the ...
Wang Ping - - 2014
In this work, we present a new method to synthesize the phosphorus, nitrogen contained graphene nanosheets, which uses dicyandiamide to prevent the aggregation of graphene oxide and as the nitrogen precursor, and phosphoric acid (H3PO4) as the activation reagent. We have found that through the H3PO4 activation, the samples exhibit ...
Tokuhara Yasunori Y Department of Clinical Laboratory, The University of Tokyo Hospital, Tokyo, Japan ; The Group of Neurobiology, Division of Health Sciences, Graduate School of Medicine, Osaka University, Osaka, - - 2014
Alkaptonuria, caused by a deficiency of homogentisate 1,2-dioxygenase, results in the accumulation of homogentisic acid (2,5-dihydroxyphenylacetic acid, HGA) in the urine. Alkaptonuria is suspected when the urine changes color after it is left to stand at room temperature for several hours to days; oxidation of homogentisic acid to benzoquinone acetic ...
Battogtokh Gantumur - - 2014
In spite of the great potential of nucleic acids as therapeutic agents, the clinical application of nucleic acid therapeutics requires the development of effective systemic delivery strategies. In an effort to develop effective nucleic acid delivery systems suitable for clinical application, we previously reported a self-assembling micelle-like nanoparticle that was ...
Bayrak Cigdem Sevim CS Computational Science and Engineering Program, Koc University, 34450, Sariyer, Istanbul, Turkey. - - 2014
The dynamic rotational isomeric state model is applied to predict the internal dynamics of the 20 amino acids. Transition rates between rotational isomeric states are calculated from molecular dynamics simulations of Gly-Gly-X-Gly-Gly peptides where X represents one of the 20 amino acids. Predicted relaxation times are in good agreement with ...
Iswantini Dyah - - 2014
Determination of uric acid concentration in human urine and blood is needed to diagnose several diseases, especially the occurrence of kidney disease in gout patients. Therefore, it is needed to develop a simple and inexpensive method for uric acid detection. The purpose of the research was to observe the use ...
Khoury George A GA Department of Chemical and Biological Engineering, Princeton University , Princeton, New Jersey 08544, United - - 2014
We describe the development and testing of ab initio derived, AMBER ff03 compatible charge parameters for a large library of 147 noncanonical amino acids including β- and N-methylated amino acids for use in applications such as protein structure prediction and de novo protein design. The charge parameter derivation was performed ...
Zhu Feng-Mei FM College of Food Science and Technology, Hebei Normal University of Science and Technology Qinhuangdao, 066600, - - 2014
Adding β-glycosidase into grape wine for enhancing aroma was investigated using gas chromatography-mass spectrometry (GC-MS) and Kramer sensory evaluation. Compared with the extract from control wines, the extract from enzyme-treated wines increased more aromatic compounds using steam distillation extraction (SDE) and GC-MS analyses. Theses aromatic compounds were as follows: 3-methyl-1-butanol ...
Moon Soo-Yeon SY Department of Chemistry and Nano Science, Ewha Womans University , Global Top 5 Program, Seoul 120-750, - - 2014
A mild and efficient method for the synthesis of N-arylsulfonamides in the presence of 10 mol % of CuCl is demonstrated. The reaction proceeds readily at room temperature in an open flask using a variety of sulfonyl azides and boronic acids without any base, ligand, or additive.
Zhang J J Department of Endocrinology, Wuhan General Hospital of Guangzhou Command, Wuluo Road 627, Wuhan, 430070, Hubei, People's Republic of China, - - 2014
Increased serum uric acid levels and vascular atherosclerosis are very common in diabetes. However, few studies focused on the relationship between serum uric acid and aortic or peripheral arterial stiffness in newly diagnosed diabetic patients. This study investigated the association between serum uric acid levels and carotid-femoral pulse wave velocity ...
Jiang Yu Sherry YS Institute for Cellular and Molecular Biology, Center for Systems and Synthetic Biology, Department of Chemistry and Biochemistry, University of Texas at Austin, 2500 Speedway, Austin, TX - - 2014
Catalytic hairpin assembly (CHA) has previously proven useful as a transduction and amplification method for nucleic acid detection. However, the two hairpin substrates in a CHA circuit can potentially react non-specifically even in the absence of a single-stranded catalyst, and this non-specific background degrades the signal-to-noise ratio. The introduction of ...
Ikeda Rie R Division of Analytical Research for Pharmacoinformatics, Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki, 852-8521, - - 2014
A chemiluminescence (CL) reaction of folic acid (FA) with ruthenium (II) and cerium (IV) was applied to quantify FA-related compounds such as FA, dihydrofolic acid, tetrahydrofolic acid, 5-methyltetrahydrofolic acid, 5-formyltetrahydrofolic acid and methotrexate (MTX). Among the FAs, 5-methyltetrahydrofolic acid provided the highest CL intensity. HPLC-CL detection of FA was applied ...
Cao Dongxu - - 2014
Aldehydes and acids play important roles in the fermentation inhibition of biomass hydrolysates. A series of carbonyl compounds (vanillin, syringaldehyde, 4-hydroxybenzaldehyde, pyrogallol aldehyde and o-phthalaldehyde) were used to examine the quantitative structure-inhibitory activity relationship of carbonyl compounds on alcoholic fermentation, based on the glucose consumption rate and the final ethanol ...
Chatveera B B Department of Civil Engineering, Faculty of Engineering, Thammasat University, Rangsit Campus, Khlong Luang, Pathumthani 12121, Thailand. Electronic address: - - 2014
This paper presents the performance of cement mortar containing black rice husk ash (BRHA) under nitric and acetic acid attacks. The BRHA, collected from an electrical generating power plant that uses rice husk as fuel, was ground using a grinding machine. The compressive strength loss, weight loss, and expansion of ...
Cai Yun Y Department of Food Science and Engineering, Jinan University, Guangzhou 510632, - - 2014
This research was aimed to investigate why chlorogenic acid, presents at high concentrations in some food raw material, influences acrylamide formation. In the asparagine/glucose Maillard reaction system (pH=6.8), addition of chlorogenic acid significantly increased acrylamide formation and inhibited its elimination. In contrast, the quinone derivative of chlorogenic acid decreased acrylamide ...
Ahmed Osama A A OA Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Minia University, Minia, - - 2014
The present study aimed to develop optimized quercetin (QT)-loaded self-nanoemulsifying drug delivery system (SNEDDS) that offers protective effect against liver damage. Solubility study of QT in different oils, surfactants, and cosurfactants was performed. Ternary phase mixtures of the selected components were constructed to select a suitable range for each component. ...
Chang Jinfa - - 2014
The direct formic acid fuel cell is an emerging energy conversion device for which palladium is considered as the state-of-the-art anode catalyst. In this communication, we show that the activity and stability of palladium for formic acid oxidation can be significantly enhanced using nickel phosphide (Ni(2)P) nanoparticles as a cocatalyst. ...
Li Jia - - 2014
In this paper, citric acid, 1,8-octanediol and 1,2-propanediol were used as reactive monomers to synthesize poly(1,2-propanediol-co-1,8-octanediol-co-citrate) (PPOC) elastomers by melt polycondensation. The PPOC elastomers were characterized by FTIR, 1H-NMR, thermal gravimetric analysis (TGA), differential scanning calorimetry (DSC), hydrophilic test and mechanical test. The results indicated that citric acid had reacted ...
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