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Bentley Keith W - - 2013
A stereodynamic probe for determination of the absolute configuration and enantiomeric composition of chiral amines, diamines, amino alcohols, amino acids, and α-hydroxy carboxylic acids is described. The chirality sensing is based on spontaneous asymmetric transformation of the first kind with stereolabile binaphtholate boron and zinc complexes. The substrate binding and ...
de Puit Marcel - - 2013
The analysis of amino acids present in fingerprints has been studied several times. In this paper, we report a method for the analysis of amino acids using an fluorenylmethyloxycarbonyl chloride-derivatization for LC separation and MS detection. We have obtained good results with regard to the calibration curves and the limit ...
Elgersma Anjo - - 2013
Fresh forages are an important natural source of vitamins and fatty acids in ruminant diets and their concentrations in forage species are important for the quality of animal-derived foods such as dairy and meat products. The aims of this study were to obtain novel information on vitamins and fatty acids ...
Manimekalai R - - 2013
Non-linear optical crystals of lithium sulfate monohydrate added with Aloevera amino acid were grown successfully by slow evaporation technique moderately at low cost. Initially the Aloevera amino acid extract was prepared from the 3years old plant leaves and the amino acids present in that were identified by high performance liquid ...
Cid A A REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Quinta da Torre, 2829-516 Monte de Caparica, Portugal; Physical Chemistry Department, Faculty of Sciences, University of Vigo, Ourense Campus, E-32004 Ourense, - - 2014
Micellar systems have excellent food applications due to their capability to solubilise a large range of hydrophilic and hydrophobic substances. In this work, the mixed micelle formation between the ionic surfactant sodium dodecyl sulphate (SDS) and the phenolic acid salicylic acid have been studied at several temperatures in aqueous solution. ...
Solínová Veronika - - 2013
CE methods have been developed for the chiral analysis of new types of six acyclic nucleoside phosphonates, nucleotide analogues bearing [(3-hydroxypropan-2-yl)-1H-1,2,3-triazol-4-yl]phosphonic acid, 2-[(diisopropoxyphosphonyl)methoxy]propanoic acid or 2-(phosphonomethoxy)propanoic acid moieties attached to adenine, guanine, 2,6-diaminopurine, uracil and 5-bromouracil nucleobases, using neutral and cationic cyclodextrins as chiral selectors. With the exception of the ...
Gouveia W - - 2013
In search of environmentally-friendly ionic liquids (ILs), 14 were prepared based on the imidazolium, pyridinium and choline cations, with bromide and several amino acids as anions. Good yields were obtained in the synthesis of pyridinium ILs and those prepared from choline and amino acids. Four of the ILs synthesized from ...
Fomina-Yadlin Dina - - 2013
Depletion of two nonessential amino acids, asparagine (Asn) and glutamine (Gln), occurred during a fed-batch production process with a CHO cell line expressing a recombinant antibody. This depletion coincided with growth suppression and the onset of the stationary phase. Experimental withdrawal of Asn led to cell cycle arrest of cell ...
Wildberger Patricia - - 2013
Sucrose phosphorylase catalysed glycosylation of glyceric acid amide with complete regio- and diastereo-selectivity is studied. (R)-2-O-α-d-Glucopyranosyl glyceric acid amide was obtained in high yield from single-step transformation of racemic glyceric acid amide and sucrose. Non-productive binding of (S)-glyceric acid amide appeared to underlie strict enantiodiscrimination by the enzyme, thus supporting ...
Duan Xiang - - 2013
Fertilized hen egg is traditionally considered as a dietary supplement in many Asian countries. This work aimed to obtain information on effect of fertilization on total nutritional composition of egg contents and protein conformation. Chemical analysis showed that the lipid level in fertilized egg began to decrease after day 9. ...
Bag Subhendu Sekhar - - 2013
The β-turn conformation and FRET process were established in the designed tripeptide containing fluorescent triazolyl donor and acceptor-decorated unnatural amino acids separated by a natural alanine.
Qin Lihong - - 2013
Unraveling the kinetics and mechanisms of sparingly soluble calcium orthophosphate (Ca-P) dissolution in the presence of organic acids at microscopic levels is important for an improved understanding in determining the effectiveness of organic acids present in most rhizosphere environments. Herein, we use in situ atomic force microscopy (AFM) coupled with ...
Tian Shouzheng - - 2013
A quinoline alkaloid 1 and five known compounds (2-6) were isolated from a novel halophilic actinomycete Nocardiopsis terrae YIM 90022, and their structures were determined by spectroscopic studies as 4-oxo-1,4-dihydroquinoline-3-carboxamide (1), p-hydroxybenzoic acid (2), N-acetyl-anthranilic acid (3), indoly-3-carboxylic acid (4), cyclo(Trp-Gly) (5) and cyclo(Leu-Ala) (6). Compound 1 was isolated from ...
Lins Philipp - - 2013
This paper investigates if it is possible to produce inocula to counteract high acetic acid (CH3COO(-)) concentrations during thermophilic anaerobic digestion. To this end, fermenter sludge was exposed for different durations to either gradually increasing CH3COO(-) concentrations or directly exposed to a high concentration (150mM). Altogether, these enrichments led to ...
Wan Li - - 2013
meta-C-H arylation and methylation of 3-phenylpropanoic acid and phenolic derivatives were developed using an easily removable nitrile template. The combination of a weakly coordinating U-shaped template and MPAA ligand (mono protected amino acid) was crucial for the cross-coupling of C-H bonds with organoborons.
Svetlichnyy Valentin - - 2013
Lipids play an important role in the maturation, viability and function of sperm cells. In this study, we examined the neutral and polar lipid composition of boar spermatozoa by thin-layer chromatography/mass spectrometry. Main representatives of the neutral lipid classes were diacylglycerols containing saturated (myristoyl, palmitoyl and stearoyl) fatty acyl residues. ...
Parsons Joshua B - - 2013
The balanced synthesis of membrane phospholipids, fatty acids and cell wall constituents is a vital facet of bacterial physiology, but there is little known about the biochemical control points that coordinate these activities in Gram-positive bacteria. In Escherichia coli, the glycerol-phosphate acyltransferase (PlsB) plays a key role in coordinating fatty ...
Francesca Nicola N Department of Agricultural and Forestry Science, University of Palermo, Viale delle Scienze 4, 90128 Palermo, - - 2013
The aim of the present work was to investigate the microbiological, chemical, and sensory characteristics of red wine subjected to post-fermentation maceration that was extended to 90days. For this purpose, the 'Aglianico di Taurasi' grape was used as a case study. The total yeast concentration increased until day 40 of ...
Jadhav Swapnil R - - 2013
Vegetable oils are frequently structured to enhance their organoleptic and mechanical properties. This is usually achieved by increasing the net amount of saturated and/or trans fatty acids in the oil. With the risk of coronary heart diseases associated with these fatty acids, the food industry is looking for better alternatives. ...
Hashimoto Takuya - - 2013
We developed herein a new chiral Brønsted acid catalyst which is composed of two independent organic molecules, a chiral diol, and 2-boronobenzoic acid. In situ formation of a boronate ester was utilized as a key process to generate an active catalyst. This boronate ester assisted chiral carboxylic acid catalyst was ...
Luthria Devanand L - - 2013
Nine fractions (ground corn-1, cooked slurry-2, liquefied slurry-3, fermented mash-4, whole stillage-5, thin stillage-6, condensed distillers soluble (CDS)-7, distillers wet grains (DWG)-8, and distillers dried grains with soluble (DDGS)-9) were collected at different steps from three commercial dry-grind bioethanol processing plants. Samples were analyzed for the individual and total phenolic ...
Jie Weiguang - - 2013
This study aimed at exploring the potential of volatile fatty acids (VFAs) produced from excess sludge (ES) as a new cost-effective internal carbon source in wastewater treatment processes. The optimal condition for VFA accumulation and the bacterial community structure in the bio-production of VFAs from ES were investigated at different ...
Wu Hai-Bian - - 2013
In the presence of 2.5 mol% Pd2(dba)3-TMEDA (1 : 4), a range of enantioenriched allylic alcohols smoothly coupled with boronic acids in a highly regioselective fashion with inversion of configuration to afford structurally diverse alkenes in good yields with perfect retention of ee.
Schopp Lauren M - - 2013
While Brettanomyces can metabolize non-esterified hydroxycinnamic acids found in grape musts/wines (caffeic, p-coumaric, and ferulic acids), it was not known whether this yeast could utilize the corresponding tartaric acid esters (caftaric, p-coutaric, and fertaric acids, respectively). Red wines from Washington and Oregon were inoculated with B. bruxellensis while hydroxycinnamic acids ...
Cian Raúl E - - 2013
Abstract Proximate composition, fatty acids and amino acid profiles and nutritional (chemical score, protein digestibility, PDCAAS and mineral dialyzability) and antioxidant properties (TEAC, DPPH and power reduction) from Porphyra columbina were evaluated. Total dietary fiber (48.02 ± 1.13 g/100 g dry weight) and protein (24.61 ± 0.21 g/100 g dry weight) were the two most abundant components in ...
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 ...
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