Search Results
Results 751 - 800 of 4614
< 11 12 13 14 15 16 17 18 19 20 21 >
Pérez-Palacios Trinidad - - 2013
Abstract This work evaluates the influence of deep-frying coated fish products on total fat, fatty acid (FA) and amino acid profile, and on the formation of volatile compounds, with special attention on furan and its derivatives due to their potential harmful characteristics. As expected, deep-frying in sunflower oil increased linoleic ...
Yokomatsu Atsuko - - 2013
During hemodialysis, amino acid loss through the dialysate remained a significant problem and was not clear in some dialyzers; therefore, we investigated amino acid loss with hydrophilic and nonhydrophilic polyester-polymer alloy membranes and polyacrylonitrile membranes. Nine maintenance hemodialysis patients were studied to assess amino acid loss during hemodialysis with the ...
Meyer Danilo - - 2013
Oilseed germination is characterized by the degradation of storage lipids. It may proceed either via the direct action of a triacylglycerol lipase, or in certain plant species via a specific lipid body 13-lipoxygenase. For the involvement of a lipoxygenase previous results suggested that the hydroxy- or oxo-group that is being ...
Jung Jooyeoun - - 2013
This study evaluated individual contributions of dissolving acids (acetic acid, lactic acid, and hydrochloric acid) or acid solubilized chitosan to the antibacterial activity against Listeria innocua and Escherichia coli as solutions and dried films. Solutions containing chitosan showed significantly (P < 0.05) different inhibitory activity (measured as percentage of inhibition (PI), in ...
Kuwano Yuko - - 2013
To determine the structure and functional relationships of invertebrate lysozymes, we isolated a new invertebrate (i)-type lysozyme from the common orient clam (Meretrix lusoria) and determined the complete amino acid sequence of two isozymes that differed by one amino acid. The determined sequence showed 65% similarity to a lysozyme from ...
Lee Kyung Eun - - 2013
We compared the volatile profiles in soy sauce according to inoculation with Tetragenococcus halophilus and/or Zygosaccharomyces rouxii. Totals of 107 and 81 volatiles were respectively identified by using solid-phase microextraction and solvent extraction. The various volatile compounds identified included acids, aldehydes, esters, ketones, furans and furan derivatives, and phenols. The ...
Lai Jingjing - - 2013
The formation of amyloid aggregates is regarded as a universal and intrinsic property of all proteins, and even so for homopolymers of α-amino acids. Here we push this generality even further by showing that ε-poly-L-lysine, a non-α-poly(amino acid), also aggregates into amyloid-like fibril structures in aqueous solution. In addition, a ...
Yang Jinlong J Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, PR - - 2014
Novel amphiphilic polymers (starch-deoxycholic acid, St-DCA) were firstly synthesized on the basis of starch (St) as a hydrophilic segment and deoxycholic acid (DCA) as a hydrophobic segment. Hydrophobically modified starch contained 5.4-8.9 deoxycholic acid groups per 100 anhydroglucose units of starch. Self-aggregates of St-DCA conjugates were formed in the PBS ...
Ruddle Paul P - - 2013
Two new sources of elevated seed stearic acid were identified and the feasibility of an elevated stearic acid, high oleic acid germplasm was studied. Soybean [Glycine max (L.) Merr.] oil typically contains 2-4 % stearic acid. Oil with at least 20 % stearic acid is desirable because of its improved baking properties ...
Li Fangfang - - 2013
In the current study, the small RNA ryhB, which regulates the metabolism of iron in Escherichia coli, was constitutively expressed in engineered Escherichia coli DALA. The resulting strain Escherichia coli DALRA produced 16% more 5-aminolevulinic acid than the parent strain Escherichia coli DALA in batch fermentation. Meanwhile, we found that ...
Hammer Michaela - - 2013
Due to the high number of double bonds, ω-3-polyunsaturated fatty acids such as eicosapentaenoic aid (EPA) or docosahexaenoic acid (DHA) are prone to rapid oxidation, leading to the formation of intense taints often described as "fishy". To clarify the compounds responsible for such off-flavors, EPA, DHA, and α-linolenic acid (ALA) ...
Phengnuam Thanyarat - - 2013
Jatropha curcas, a tropical plant, has great potential commercial relevance as its seeds have high oil content. The seeds can be processed into high quality biofuel producing seed cake as a by-product. The seed cake, however, has not gotten much attention towards its potential usefulness. This work was aimed to ...
Naghdi Mitra - - 2013
The most recent method of fungal chitosan purification, i.e., two steps of dilute sulfuric acid treatment, pretreatment of cell wall at room temperature for phosphate removal and extraction of chitosan from the phosphate free cell wall at high temperature, significantly reduces the chitosan molecular weight. This study was aimed at ...
Jurado-Sánchez Beatriz - - 2013
The occurrence of 35 aliphatic and aromatic carboxylic acids within two full scale drinking-water treatment plants was evaluated for the first time in this research. At the intake of each plant (raw water), the occurrence of carboxylic acids varied according to the quality of the water source although in both ...
Cohen Hagai - - 2013
Genome doubling may have multi-level effects on the morphology, viability and physiology of polyploids compared to diploids. We studied the changes associated with autopolyploidization in two systems of somatic newly induced polyploids, diploid-autotetraploid and triploid-autohexaploid, belonging to the genus Hylocereus (Cactaceae). Stomata, fruits, seeds, embryos, and pollen were studied. Fruit ...
Di Cerbo Alessandro - - 2013
Hyaluronic acid has several clinical applications. Recent evidences suggested antimicrobial properties against several pathogens. The aim of the present survey was to evaluate the effect of hyaluronic acid, alone or in combination with hyaluronidase, on protechnological or probiotic strains. The role of hyaluronic acid and hyaluronidase on in vitro growth ...
Saranya P - - 2013
The extremely acidophilic microorganisms Bacillus pumilus and Bacillus subtilis were isolated from soil collected from the commercial edible oil and fish oil extraction industry. Optimization of conditions for acidic lipase production from B. pumilus and B. subtilis using palm oil and fish oil, respectively, was carried out using response surface ...
Kim M J - - 2013
The role of monochromatic lights was investigated on meat quality in 1-d-old straight-run broiler chicks (n = 360), divided into 6 light sources with 6 replicates having 10 chicks in each replicate. Six light sources were described as incandescent bulbs (IBL, as a control) and light-emitting diode (LED) light colors ...
Salum María L - - 2013
Successful application of matrix-assisted laser desorption/ionization (MALDI) MS started with the introduction of efficient matrices such as cinnamic acid derivatives (i.e. 3,5-dimethoxy-4-hydroxycinnamic acid, SA; α-cyano-4-hydroxycinnamic acid). Since the empirical founding of these matrices, other commercial available cinnamic acids with different nature and location of substituents at benzene ring were attempted. ...
Derda Monika M Department of Biology and Medical Parasitology, Poznan University of Medical Sciences, 10 Fredry St., 61-701 Poznań, Poland. - - 2013
Selected fractions of ethanolic extracts obtained from leaves and roots of Eryngium planum (Apiaceae) were evaluated in vitro for amebicidal activity against Acanthamoeba castellanii. This free-living ameba is the cause of Acanthamoeba keratitis, which is a painful, vision-impairing disease of the eyes, and chronic granulomatous amebic encephalitis. Treatment is very ...
Adak Atanu A Department of Microbiology, Vidyasagar University, Midnapore 721 102, - - 2013
Two Bacillus sp. were isolated from the local fermented milk and identified on the basis 16S rRNA sequence profile as Bacillus subtilis AKL1 and by biochemical process as Lactobacillus acidophilus AKL2. These isolates were used as fresh inoculums for curd preparation individually and in combinations. Different physico-chemical and therapeutic properties ...
Kadam Shahuraj H SH Prof S. C. Bhattacharyya Organic Synthesis Laboratory, VerGo Pharma Research, Verna, Goa 403722, - - 2013
Structure 2 assigned presently to nardin is revised to that of valerenic acid (4), and structure 1 assigned presently to nardal is revised to that of valerenal (3). The names valerenic acid and valerenal have priority so the names nardin and nardal should no longer be used.
Van Long Luu H LH Department of Chemistry, Thu Dau Mot University, 6 Tran Van On Street, Thu Dau Mot City, 820000 Binh Duong Province, - - 2013
Three new sodium salts of iridoid acids, deacetylasperulosidic acid sodium salt (1), teneoside D (2), and teneoside E (3) were isolated from the leaves of Hedyotis tenelliflora Blume (Rubiaceae), together with seven known iridoids, 6alpha-hydroxygeniposide (4), 6beta-hydroxygeniposide (5), 6-O-methyldeacetylasperulosidic acid methyl ester (6), 6-O-methylscandoside methyl ester (7), 6alpha-methoxygeniposidic acid (8), ...
Lin Na N Key Laboratory of Bio-resources and Eco-environment of the Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610064, P. R. China. - - 2013
A putative fatty acyl-acyl carrier protein (acyl-ACP) thioesterase (thioesterase) full-length cDNA sequence named as ClFATB1 was obtained from the seed cDNA library of Cinnamomum longepaniculatum by the SMART-RACE method. The novel gene encodes a protein of 382 amino acid residues with close homology to fatty acid thioesterase type B (FATB) ...
Cieśla Łukasz - - 2013
TLC coupled with 2,2-diphenyl-1-picrylhydrazyl staining was used to analyze phenolic acid fractions of selected Salvia and Thymus species. Documented videoscans were processed by means of an image processing program. This is the first time that free phenolic acids fractions, as well as fractions containing phenolic acids derived from basic and ...
Minakawa Maki - - 2013
A macroporous polymeric acid catalyst was prepared for the direct esterification of carboxylic acids and alcohols that proceeded at 50-80 °C without removal of water to give the corresponding esters with high yield. Flow esterification for the synthesis of biodiesel fuel was also achieved by using a column-packed macroporous acid ...
Eberlin Alex R - - 2013
New methanesulfonic acid salt forms of the anticonvulsant and analgesic active pharmaceutical ingredient carbamazepine and its closely related structural analogue 10,11-dihydrocarbamazepine have been prepared and characterized by single-crystal X-ray diffraction at 120 and 100 K, respectively {namely [(5H-dibenzo[b,f]azepin-5-yl)(hydroxy)methylidene]azanium methanesulfonate, C15H13N2O(+)·CH3SO3(-), and [(10,11-dihydro-5H-dibenzo[b,f]azepin-5-yl)(hydroxy)methylidene]azanium methanesulfonate, C15H15N2O(+)·CH3SO3(-)}. In light of the structural information obtained, ...
Yan Shoubao - - 2013
A strain designated M866, producing kojic acid with a high yield, was obtained by combining induced mutation using ion beam implantation and ethyl methane sulfonate treatment of a wild type strain of Aspergillus oryzae B008. The amount of kojic acid produced by the strain M866 in a shaking flask was ...
Sewell Edward Wc - - 2013
Wall teichoic acids are a major and integral component of the Gram-positive cell wall. These structures are present across all species of Gram-positive bacteria and constitute roughly half of the cell wall. Despite decades of careful investigation, a definitive physiological function for wall teichoic acids remains elusive. Advances in the ...
Doi Hidetaka - - 2013
Fatty acids are a promising raw material for substance production because of their highly reduced and anhydrous nature, which can provide higher fermentation yields than sugars. However, they are insoluble in water and are poorly utilized by microbes in industrial fermentation production. We used fatty acids as raw materials for ...
Maeda N N Rensselaer Nanotechnology Center, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, - - 2014
Composite polysaccharide fibers composed two oppositely charged natural polysaccharides, chitosan and hyaluronic acid, were prepared by electrospinning and subsequent coating. The fiber size distribution was characterized by scanning electron microscopy. Chitosan/hyaluronic acid composite fibers were stable in water but showed controlled release of hyaluronic acid into phosphate buffered saline, and ...
Xin Xiu-Lan - - 2013
Microbial biotransformation of acetyl-11-keto-boswellic acid by Cunninghamella elegans AS 3.1207 was carried out, and totally four transformed products were isolated. On the basis of the extensive spectral data, their structures were characterized as 7β-hydroxy-11-keto-boswellic acid (1), 7β,30-dihydroxy-11-keto-boswellic acid (2), 7β,16α-dihydroxy-3-acetyl-11-keto-boswellic acid (3), and 7β,15α,21β-trihydroxy-3-acetyl-11-keto-boswellic acid (4), respectively. Among them, products ...
Iqbal Jamshed - - 2013
Ecto-5'-nucleotidase (CD73) is well known for its implication in cancer. Inhibition of ecto-5'-nucleotidases is thought to provide an attractive approach to cancer therapy. This study identifies sulfonic acid compounds as efficient inhibitors of ecto-5'-nucleotidases. The compounds were tested against recombinant human and rat ecto-5'-nucleotidases. The most potent new sulfonic acid ...
Cerrone Federico - - 2013
A two step biological process for the conversion of grass biomass to the biodegradable polymer medium chain length polyhydroxyalkanoate (mcl-PHA) was achieved through the use of anaerobic and aerobic microbial processes. Anaerobic digestion (mixed culture) of ensiled grass was achieved with a recirculated leach bed bioreactor resulting in the production ...
Kuwano Yuko - - 2013
To evaluate the structure-function relationships of invertebrate lysozymes, a new invertebrate-type (i-type) lysozyme was isolated from the common orient clam (Meretrix lusoria) and the tertiary structure of this enzyme was determined. Comparison of the tertiary structure of this enzyme with those of chicken and Venerupi philippinarum lysozymes revealed that the ...
Nawirska-Olszańska Agnieszka - - 2014
The aim of the research was to determine the composition of organic acids in fruit of different cultivars of three pumpkin species. The amount of acids immediately after fruit harvest and after 3months of storage was compared. The content of organic acids in the examined pumpkin cultivars was assayed using ...
Maurer Christian - - 2013
Reaction of Ti(OiPr)4 with several tri- and tetracarboxylic acids, followed by hydrolysis, resulted in microporous, structured materials, with microporous surface areas up to 340 m(2) g(-1). Depending on the kind of carboxylic acid, the Ti : COOH ratio and the Ti : H2O ratio, either pillared layered or surface fractal 3D structures were obtained ...
Park Yong-Duk - - 2014
The goals of this study were to determine the content of organic acids and inorganic anions in human saliva by using an ion chromatography method, to compare the organic acid and inorganic anion concentrations before and after a sugar rinse, and to investigate the relationships between the levels of each ...
Atkins Elizabeth E School of Molecular & Cellular Biology & Astbury Centre for Structural Molecular Biology, Faculty of Biological Sciences, University of Leeds, Leeds, West Yorkshire LS2 9JT, United - - 2014
Secreted infectious particles generated by the genotype 2a JFH-1 hepatitis C virus infectious clone are resistant to acidic pH, whereas intracellular virions remain acid-labile. Thus, JFH-1 particles are thought to undergo pH maturation as they are secreted from the cell. Here, we demonstrate that both infectious intracellular and secreted genotype ...
Pasteris Sergio E - - 2013
Lactococcus lactis CRL 1584 isolated from a Lithobates catesbeianus hatchery inhibits the growth of Citrobacter freundii (a bullfrog pathogen) and Listeria monocytogenes by a synergistic effect between lactic acid, hydrogen peroxide and a bacteriocin-like molecule. The chemical characterization of the bacteriocin in cell-free supernatants indicates that it has a proteinaceous ...
Huynh Nhung - - 2013
<i>N</i>-Acetylneuraminate lyases (NALs) or sialic acid aldolases catalyze the reversible aldol cleavage of <i>N</i>-acetylneuraminic acid (Neu5Ac, the most common form of sialic acid) to form pyruvate and <i>N</i>-acetyl-D-mannosamine (ManNAc). Although equilibrium favors sialic acid cleavage, these enzymes can be used for high-yield chemoenzymatic synthesis of structurally diverse sialic acids in ...
Rakse Monika - - 2013
A novel series of 3-acetamido-4-methyl benzoic acid derivatives designed on the basis of vHTS hit ZINC02765569 were synthesized and screened for PTP1B inhibitory activity. The most potent compounds 3-(1-(5-methoxy-1H-benzo[d]imidazol-2-ylthio)acetamido)-4-methyl benzoic acid (10c, IC50 8.2 μM) and 3-(2-(benzo[d]thiazol-2-ylthio)acetamido)-4-methyl benzoic acid (10e, IC50 8.3 μM) showed maximum PTP1B inhibitory activity. Docking studies were also ...
Krings Ulrich - - 2014
Fruiting bodies of the oyster mushroom Pleurotus ostreatus were illuminated with UV-B with a light intensity maximum at 310-320nm and 11.5W/m(2) for 60min at 20°C. Changes of the sterol and fatty acid spectrum were quantified. The onset of ergocalciferol (vitamin D2) formation was immediate in fruiting bodies illuminated from the ...
Kim Jae Kwang - - 2013
The diamondback moth, Plutella xylostella (L.), is a major pest responsible for destroying cabbage and other Brassica vegetable crops. We studied diamondback moth-resistant cabbage line by comparing its metabolite profiles with those of a susceptible cabbage. Fourier transform infrared spectroscopy analysis revealed that carbohydrates, aromatic compounds, and amides were the ...
Agten Stijn M - - 2013
Selecting the right partner faster: In protein chemoselective conjugation, the use of levulinic acid for ketone introduction leads to slow oxime formation and poor yield because of internal cyclization, especially at low concentrations. A mechanism for cyclization is proposed and alternative keto-acids have been tested. These showed faster formation of ...
Huo Jing Pei - - 2013
Serial novel chiral polydiacetylenes (PDAs) are efficiently prepared at room temperature by the controllable electrophoretic deposition of diacetylenes with tunable structure as designed from easily available starting materials. The colorimetrically reversible properties of PDAs in the range between 25 and 85 °C are influenced by the different amino acid moiety ...
Schulmerich Matthew V - - 2013
Abstract Soybeans are a commodity crop of significant economic and nutritional interest. As an important source of protein, buyers of soybeans are interested in not only the total protein content, but in the specific amino acids that comprise the total protein content. Raman spectroscopy has the chemical specificity to measure ...
Yuan Hai-Na - - 2013
An organocatalytic enantioselective decarboxylative Mannich reaction of malonic acid half oxyesters with cyclic ketimines was developed for the preparation of enantioenriched β-amino esters with a quaternary stereogenic center and the anti-HIV drug DPC 083.
Kaweetripob Wirongrong - - 2013
Twenty-one triterpenes consisting of a lupane derivative, two friedelanes, an oleanane derivative, and 17 ursane-type triterpenoids, together with three known triterpenes, three sterols, a fatty acid, a sesquiterpene alkaloid, and a glycerol derivative, were isolated from the stem of Siphonodon celastrineus. Their structures were characterized by various spectroscopic techniques, as ...
Ijarotimi Oluwole S OS Department of Food Science and Technology, Federal University of Technology Akure, - - 2013
Moringa oleifera seeds were processed as raw M. oleifera (RMO), germinated M. oleifera (GMO), and fermented M. oleifera (FMO), and were evaluated for proximate, minerals, amino acids, fatty acids, phytochemicals/antinutrients, and functional properties. Protein content of GMO (23.69 ± 0.11 g/100 g) was higher than FMO (21.15 ± 0.08 g/100 ...
< 11 12 13 14 15 16 17 18 19 20 21 >