Search Results
Results 251 - 300 of 785
< 1 2 3 4 5 6 7 8 9 10 11 >
Park Sang-Hyun - - 2011
This study was undertaken to investigate the antimicrobial effect of organic acids against Escherichia coli O157:H7, Salmonella Typhimurium, and Listeria monocytogenes on whole red organic apples and lettuce. Several studies have been conducted to evaluate organic acids as sanitizers. However, no studies have compared antimicrobial effects of various organic acids on organic fresh produce, including evaluation ...
Ali F - - 2011
The present study focused on the antibacterial and biofilm inhibitory potential of 4-epi-pimaric acid isolated from aerial parts (stem and leaves) of Aralia cachemirica L. (Araliaceae) against oral cavity pathogens. 4-epi-Pimaric acid exhibited minimum inhibitory concentration (MIC) in the range of 4-16 μg/ml and minimum bactericidal concentration (MBC) two- to four-folds ...
Hasegawa Akio - - 2011
Acidic and osmotic treatments are part of hurdle systems to control pathogens such as Salmonella in food. In the current study, Salmonella enterica isolates previously shown to differ in their ability to form biofilms were grown in diluted tryptic soy broth (TSB) (1:5 dilution in distilled water) and subsequently exposed ...
Johnson Matthew D - - 2011
RcsB interacts with GadE to mediate acid resistance in stationary-phase Escherichia coli K-12. We show here that RcsB is also required for inducible acid resistance in exponential phase and that it acts on promoters that are not GadE regulated. It is also required for acid resistance in E. coli O157:H7.
Pietrowski Brittney N BN West Virginia University, Division of Animal and Nutritional Sciences, P.O. Box 6108, Morgantown, WV 26506-6108, - - 2011
Surimi-based seafood products are widely accepted and enjoyed worldwide. The US consumption increased in 1980s; however, it leveled thereafter. Food products nutrified with ω-3 polyunsaturated fatty acids (PUFAs) are in increasing demand due to demonstrated health benefits. Currently, surimi seafood is not nutrified with ω-3 PUFAs. In the present study, ...
Chow Yin-Naï YN Conservatoire National des Arts et Métiers, Chaire de Biochimie Industrielle et Agro-Alimentaire, UMR 1145 Ingénierie Procédés Aliments, 75141 Paris cedex 03, France; INRA, UMR 1145 Ingénierie Procédés Aliments, 91300 Massy, France. Electronic address: - - 2011
It was recently reported that during osmotic dehydration of ascorbic acid (AA)-treated apple cubes, losses in AA and phenolics could partly arise from enzymatic oxidation, provided polyphenoloxidase (PPO) was still active under the processing conditions. To determine the impact of dehydration temperatures on PPO action, as well as chemical and ...
Liu Benguo B School of Food Science, Henan Institute of Science and Technology, Xinxiang 453003, Henan Province, PR - - 2011
Sesame sprouts are consumed as vegetables in Asian folk. In this study, the nutritional evaluation and antioxidant activity of sesame sprouts were investigated. As seeding days progressed, the free amino acids, γ-aminobutyric acid and total phenolic compounds in the sprouts were rapidly increased while sesamin was reduced. Although a fatty ...
Jeon Eunyoung - - 2011
The goal of this research was to develop recombinant Escherichia coli to improve fatty acid synthesis (FAS). Genes encoding acetyl-CoA carboxylase (accA, accB, accC), malonyl-CoA-[acyl-carrier-protein] transacylase (fabD), and acyl-acyl carrier protein thioesterase (EC 3.1.2.14 gene), which are all enzymes that catalyze key steps in the synthesis of fatty acids, were ...
Trojánek Antonín - - 2011
The catalytic effect of tetraphenylporphyrin on the oxygen reduction with ferrocene in 1,2-dichloroethane can be finely tuned by varying the molar ratio of the acid to the catalyst present in the solution. The mechanism involves binding of molecular oxygen to the protonated free porphyrin base, in competition with ion pairing ...
Smith Brennan K - - 2011
FAT/CD36, a plasma membrane fatty-acid transport protein, has been found on mitochondrial membranes, however it remains unclear where FAT/CD36 resides on this organelle or its functional role within mitochondria. We demonstrate, using several different approaches, that in skeletal muscle FAT/CD36 resides on the outer mitochondrial membrane (OMM). To determine the ...
Barros Ana I R N A AI CQ - Chemistry Research Centre, Chemistry Department, University of Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal. Electronic address: - - 2011
In this work the total vitamin C contents (ascorbic acid+dehydroascorbic acid) and antioxidant activity of raw and cooked chestnuts was evaluated. The vitamin C contents of raw chestnuts varied significantly between the different cultivars (cv) studied and it varied from 400mg/kg dry weight (cv Lada) to 693mg/kg dry weight (cv ...
Lillo Luis - - 2011
This study reports the antibacterial activity of an oligosaccharide, prepared by partial acid hydrolysis of a native Paecilomyces sp. exopolysaccharide, and of its aminoglycosylated derivative, prepared by reductive alkylation of the oligosaccharide, against E. coli and S. aureus.
Li Wende W Department of Food Science, University of Manitoba, Winnipeg, Manitoba, Canada R3T - - 2011
Moderate consumption of wine, beer, whisky or liqueur is known to be beneficial for improving health because of the radical scavenging action of antioxidants present in them. Thus, antioxidant and aroma properties of anthograin liqueur made from purple wheat grain were evaluated for the added-value processing purpose of that grain. ...
Hironaka K K Obihiro University of Agriculture and Veterinary Medicine, Obihiro 080-8555, Japan. Electronic address: - - 2011
The aim of this study was to evaluate the use of vacuum-impregnation (VI) for enriching the ascorbic acid content of whole potatoes. Whole potatoes were immersed in a 10% ascorbic acid (AA) solution. A vacuum pressure of 70cm Hg was applied for 0-60min, following atmospheric pressure restoration for 3h, while ...
Kubola Jittawan J Department of Food Technology and Nutrition, Mahasarakham University, Mahasarakham 44000, - - 2011
Three fractions (peel, pulp and aril) of gac fruit (Momordica cochinchinensis Spreng) were investigated for their phytochemicals (lycopene, beta-carotene, lutein and phenolic compounds) and their antioxidant activity. The results showed that the aril had the highest contents for both lycopene and beta-carotene, whilst peel (yellow) contained the highest amount of ...
Chang Chwen-Tzuei CT Department of Internal Medicine, Division of Endocrinology and Metabolism, China Medical University Hospital, Taichung, - - 2011
Anti-inflammatory effects of tormentic acid (TA) were investigated ex vivo and in vivo. TA decreased the paw edema at the 4th and 5thhour after λ-carrageenin (Carr) administration, and increased the activities of catalase (CAT), superoxide dismutase (SOD), and glutathione peroxidase (GPx) in the liver tissue. TA also significantly attenuated the ...
Zou Dongsheng - - 2011
Supersecondary structures (SSSs) are the building blocks of protein 3D structures. Accurate prediction of SSSs can be one important step toward building a tertiary structure from the specified secondary structure. How to improve the accuracy of prediction of SSSs by effectively incorporating the sequence order effects is an important and ...
Torrea Diego D Australian Wine Research Institute, P.O. Box 197, Glen Osmond (Adelaide), SA 5064, Australia; Universidad Pubica de Navarra, Department of Applied Chemistry, Campus Arrosadia S-N, E-31006 Pamplona, - - 2011
Inorganic nitrogen salts, and to a growing extent organic nitrogen preparations, are widely used to ameliorate a nitrogen deficiency in wine fermentation, but the impact of nitrogen supplementation on perceived wine sensory profile is essentially unknown. Supplementation of a low nitrogen Chardonnay grape juice with either ammonium nitrogen or combined ...
Supapvanich Suriyan S Faculty of Natural Resources and Agro-Industry, Kasetsart University, Chalermprakiat Sakonnakhon Province Campus, Muang District, Sakonnakhon Province 47000, Thailand. Electronic address: - - 2011
Physicochemical changes, such as peel and flesh colours, total anthocyanin content, browning index, firmness, total soluble solid (TSS), titratable acidity (TA), sugar acid ratio (TSS/TA), antioxidant capacity, total phenolic content and ascorbic acid content, in fresh-cut Taaptimjan wax apple fruit stored at 4±2°C and 12±2°C for 7days were investigated. The ...
Kang Hee Joo HJ Research Division for Emerging Innovative Technology, Korea Food Research Institute, 516 Baekhyun, Bundang, Sungnam, Kyongki 463-746, Republic of - - 2011
Changes in the water-soluble metabolites of meju during fermentation were analysed by ultra performance liquid chromatography-quadrupole-time of flight mass spectrometry (UPLC-Q-TOF MS), and the resultant data were statistically processed by partial least squares-discriminant analysis (PLS-DA). Various metabolites, including amino acids, small peptides, nucleosides, urea cycle intermediates, and organic acids, which ...
Lechardeur Delphine - - 2011
Lactic acid bacteria (LAB) are a phylogenetically diverse group named for their main attribute in food fermentations, that is, production of lactic acid. However, several LAB are genetically equipped for aerobic respiration metabolism when provided with exogenous sources of heme (and menaquinones for some species). Respiration metabolism is energetically favorable ...
Szymańska Grazyna - - 2011
For L-aspartic acid biosynthesis, high production cells of Escherichia coli mutant B-715 and P1 were immobilized in chitosan gel using a technique developed in our laboratory. The immobilization process reduced initial activity of the intact cells, however, the biocatalyst produced was very stabile for long-term use in multi-repeated batch or ...
Raja Alsaba F - - 2011
Boswellic acids mixture of triterpenic acids obtained from the oleo gum resin of Boswellia serrata and known for its effectiveness in the treatment of chronic inflammatory disease including peritumor edema. Boswellic acids have been extensively studied for a number of activities including anti inflammatory, antitumor, immunomodulatory, and inflammatory bowel diseases. ...
Coddens Annelies - - 2011
Enterotoxigenic F4-fimbriated Escherichia coli is associated with diarrheal disease in neonatal and postweaning pigs. The F4 fimbriae mediate attachment of the bacteria to the pig intestinal epithelium, enabling an efficient delivery of diarrhea-inducing enterotoxins to the target epithelial cells. There are three variants of F4 fimbriae designated F4ab, F4ac and ...
Duan Yangkai - - 2011
Biodiesel is a renewable alternative to petroleum diesel fuel that can contribute to carbon dioxide emission reduction and energy supply. Biodiesel is composed of fatty acid alkyl esters, including fatty acid methyl esters (FAMEs) and fatty acid ethyl esters (FAEEs), and is currently produced through the transesterification reaction of methanol ...
Larance Mark M Wellcome Trust Centre for Gene Regulation and Expression, University of Dundee, Dundee, - - 2011
We describe an approach for accurate quantitation of global protein dynamics in Caenorhabditis elegans. We adapted stable-isotope labeling with amino acids in cell culture (SILAC) for nematodes by feeding worms a heavy lysine- and heavy arginine-labeled Escherichia coli strain and report a genetic solution to elminate the problem of arginine-to-proline ...
Chohany Lucas E - - 2010
Soybean lipoxygenase-1 (SBLO-1) catalyzes the oxygenation of 1,4-dienes to produce conjugated diene hydroperoxides. The best substrates are anions of fatty acids; for example, linoleate is converted to 13(S)-hydroperoxy-9(Z),11(E)-octadecadienoate. The manner in which SBLO-1 binds substrates is uncertain. In the present work, it was found that SBLO-1 will oxygenate linoleyltrimethylammonium ion ...
Hung Pham Van PV School of Biotechnology, International University, Vietnam National University, Quarter 6, Linh Trung Ward, Thu Duc District, HoChiMinh City, Vietnam; Wheat Enzymes and Asian End Product, Grain Research Laboratory, Canadian Grain Commission, 1404-303 Main Street, Winnipeg, MB, Canada R3C 3G8. Electronic address: - - 2011
The phenolic acid profiles of flours from two Canadian wheat classes, Canadian Western Red Spring (CWRS) and Canadian Western Amber Durum (CWAD), were investigated using two different extraction mediums and analysed on an ultra-performance liquid chromatography (UPLC) system at different degrees of sprout damage. A sound (non-sprouted) control sample as ...
Połomska M - - 2011
New bio-inspired polymer composites of alginic acid and benzimidazole were created and characterized by FT NIR Raman spectroscopy. The obtained films with 1:0.5, 1:1 and 1:1.5 molar ratio are homogeneous, with good mechanical properties. Raman spectra recorded at room temperature revealed that the obtained films are a new compound with ...
Ota Masaki - - 2011
Effects of oxygen and nitrate on fatty acid/lipid production from a highly CO(2)-tolerant microalgal species Chlorococcum littorale were examined under photoautotrophic conditions of 295 K, a light intensity of 170 μmol-photon m(-2) s(-1), a bubbling CO(2) concentration of 5% (v/v) and bubbling oxygen concentrations to be volumetrically adjusted by mixing ...
Mohabatkar Hassan - - 2010
There are different types of cyclins, which are active during the cell cycle and enable cyclin-dependent kinases to phosphorylate different substrates. Since there is not much similarity between amino acid sequences of cyclins, predicting these proteins is an important job. This paper presents a bioinformatics classifier to predict cyclins based ...
Hu Mingxi - - 2010
Biofilm is bacterial population adherent to each other and to surfaces or interfaces, often enclosed by a matrix. Various biomolecules contribute to the establishment of biofilms, yet the process of building a biofilm is still under active investigation. Indole is known as a metabolite of amino acid tryptophan, which, however, ...
Erkan Nuray - - 2010
Amino acid and proximate compositions were determined in six raw and cooked marine fish species that are commonly consumed in Turkey. The changes in amino acid and proximate content were found to be significant for all cooking methods in all fish species. Cooking did, in general, significantly increase the contents ...
Deepa B - - 2011
In this work, cellulose nanofibers were extracted from banana fibers via a steam explosion technique. The chemical composition, morphology and thermal properties of the nanofibers were characterized to investigate their suitability for use in bio-based composite material applications. Chemical characterization of the banana fibers confirmed that the cellulose content was ...
Matsuhashi T - - 2011
The quality of fat is an important factor in defining the quality of meat. Fat quality is determined by the composition of fatty acids. Among lipid metabolism-related genes, including fatty acid synthesis genes, several genetic variations have been reported in the bovine fatty acid synthase (FASN), stearoyl-CoA desaturase (SCD), sterol ...
Kukiattrakoon Boonlert - - 2010
This study was conducted to evaluate the titratable acidity and effect of naturally acidic agents on the surface microhardness, elemental composition, and surface morphology of fluorapatite-leucite ceramics. One hundred and ten ceramic disks (IPS d.SIGN), 12.0 mm in diameter and 2.0 mm in thickness, were fabricated. Before immersion, the baseline ...
Whittaker Anne - - 2010
The present study was aimed at examining the effect of tuber mineral composition, distinctive for geographical location, on the expression of acrylamide precursors in three potato genotypes (Arinda, Rossa di Cetica and Sieglinde) in three Italian potato cultivation regions (Puglia, Sicily and Tuscany). Sucrose and amino acids were not correlated ...
Chen Xi - - 2010
A basalt fiber (BF) was, for the first time, introduced into a poly(l-lactic acid) (PLLA) matrix as innovative reinforcement to fabricate composite materials for hard tissue repair. Firstly, BF/PLLA composites and pure PLLA were produced by the methods of solution blending and freeze drying. The results showed that basalt fibers ...
Li Guipu - - 2010
Seasonal variation in the nutrient composition of Mytilus coruscus (thick shell mussel), cultivated in Shengsi Islands, Zhejiang Province, China, was investigated in this study. Proximate composition, mineral and amino acid concentrations, as well as the compositions of the lipid and fatty acid of thick shell mussels were analyzed. Proximate composition ...
Prieto N - - 2010
The potential of X-ray computed tomography (CT) as a predictor of cuts composition and meat quality traits using a multivariate calibration method (partial least square regression, PLSR) was investigated in beef cattle. Sirloins from 88 crossbred Aberdeen Angus (AAx) and 106 Limousin (LIMx) cattle were scanned using spiral CT. Subsequently, ...
Riskin Michael - - 2010
Au nanoparticles (NPs) functionalized with thioaniline and cysteine are used to assemble bis-aniline-bridged Au-NP composites on Au surfaces using an electropolymerization process. During the polymerization of the functionalized Au NPs in the presence of different amino acids, for example, L-glutamic acid, L-aspartic acid, L-histidine, and L-phenylalanine, zwitterionic interactions between the ...
Glaser Claudia - - 2010
OBJECTIVE: To determine reference values for fatty acid (FA) composition of serum glycerophospholipids (GPs) in children with a new high-throughput method. STUDY DESIGN: The GP FA composition of 1326 serum samples obtained from a cohort of 951 children at 2 and 6 years, participating in the German Influences of Lifestyle ...
Jobson Richard W - - 2010
Recent studies across animal phyla have suggested a possible link between amino acid compositional shifts and adaptive evolution across mitochondrial proteomes enabling longer lifespans. These studies examined associations of a gradual loss of cysteine (Cys) residues, increased usage of methionine (Met), and increased usage of threonine (Thr), with the evolution ...
Chiozza Mariana V - - 2010
Although soybean aphid (Aphis glycines) resistance is commercially available in the form of the Rag1 gene, the mechanism of this resistance is not fully understood. Amino acids are a limiting factor for aphid growth, and there is evidence that plant amino acid composition is related to aphid resistance. Antibiotic resistance ...
Croxton Ruth S - - 2010
The enhancement of latent fingerprints, both at the crime scene and in the laboratory using an array of chemical, physical and optical techniques, permits their use for identification. Despite the plethora of techniques available, there are occasions when latent fingerprints are not successfully enhanced. An understanding of latent fingerprint chemistry ...
Skogerson Kirsten - - 2010
This study sought to assess genetic and environmental impacts on the metabolite composition of maize grain. Gas chromatography coupled to time-of-flight mass spectrometry (GC-TOF-MS) measured 119 identified metabolites including free amino acids, free fatty acids, sugars, organic acids, and other small molecules in a range of hybrids derived from 48 ...
Pizzarello Sandra - - 2010
Carbon-containing meteorites provide a natural sample of the extraterrestrial organic chemistry that occurred in the solar system ahead of life's origin on the Earth. Analyses of 40 years have shown the organic content of these meteorites to be materials as diverse as kerogen-like macromolecules and simpler soluble compounds such as ...
Jiao Zhe - - 2010
Unintended compositional changes in transgenic rice seeds were studied by near-infrared reflectance, GC-MS, HPLC, and ICP-AES coupled with chemometrics strategies. Three kinds of transgenic rice with resistance to fungal diseases or insect pests were comparatively studied with the nontransgenic counterparts in terms of key nutrients such as protein, amino acids, ...
Samaee S-M - - 2010
Free amino acids (FAAs) play a key role in the physiology of marine teleosts (eggs, embryos, and larvae). However, the relationship between the egg FAAs content and the production of viable embryos and larvae (at different developmental stages) in batch spawner pelagophils has not yet comprehensively been investigated. Viable eggs ...
Kukiattrakoon Boonlert - - 2010
OBJECTIVE: To evaluate the microhardness and surface elemental compositions of ceramics immersed in acidic agents. MATERIAL AND METHODS: Thirty-five ceramic disc specimens were made from each of four types of ceramic (VMK 95, Vitadur Alpha, Empress Esthetic and IPS e.max Ceram). Before immersion, baseline data of Vicker's microhardness and elemental ...
< 1 2 3 4 5 6 7 8 9 10 11 >