Trimethylamine
Mostrando 1-12 de 179 artigos, teses e dissertações.
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1. Coating with chitosan film of sea bream (Sparus aurata) fillets: determining shelf life in refrigerator conditions
Abstract In the investigate, we objectived to assess the effect of coating with chitosan film on the shelf life. To this end, skinless sea bream fillets were separated as control group (C), vacuum packed (VP) and coated with chitosan film and vacuum packed (CF+VP). Samples of each group were periodically analyzed for microbiological [Total mesophilic aerobic
Food Sci. Technol. Publicado em: 26/10/2017
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2. Estudo da toxicidade muscular pelo uso de estatinas em pacientes hipercolesterolêmicos: avaliação pela espectroscopia do hidrogênio por ressonância magnética / Study of muscle toxicity by use of statins in hypercholesterolemic patients: evaluation by proton magnetic resonance spectroscopy
Cardiovascular disease is the leading cause of death in the western world and statins are the most prescribed medications for prevention and treatment. Despite being the most prescribed drugs, they are still under-used. The main cause of interruption of statin treatment is myopathy. Among the mechanisms involved in the pathophysiology of myotoxicity, deficie
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/11/2012
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3. The contribution of genes required for anaerobic respiration to the virulence of Salmonella enterica serovar Gallinarum for chickens
Salmonella enterica serovar Gallinarum (SG) is an intracellular pathogen of chickens. To survive, to invade and to multiply in the intestinal tract and intracellularly it depends on its ability to produce energy in anaerobic conditions. The fumarate reductase (frdABCD), dimethyl sulfoxide (DMSO)-trimethylamine N-oxide (TMAO) reductase (dmsABC), and nitrate r
Brazilian Journal of Microbiology. Publicado em: 2009-12
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4. Biogenic amines, volatile amines, free tryptophan and urea as chemical indices for quality and freshness evaluation of fish and sellfish. / Aminas biogenicas, aminas volateis, triptofano livre e ureia como indices quimicos de qualidade e frescor do pescado.
Fish and shellfish muscle is highly susceptible to spoilage during storage. Because quality quickly decreases during storage reliable chemical indices for quality and freshness evaluation are greatly needed. Total volatile bases-nitrogen (TVB-N), trimethylamine (TMA), biogenic amines, nucleotides, urea and free tryptophan have been suggested as freshness ind
Publicado em: 2005
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5. A Interação substrato-modificador e sua importância para a hidrogenação enantiosseletiva de alfa-cetoésteres
The heterogeneous asymmetric catalysis plays an important and crucial role in many chemical processes and has therefore become a growing and interesting field. The enantioselective hydrogenation of α-ketoesters is one of the best known examples of such process. Methyl pyruvate, which can be converted to (R)- and (S)-methyl lactate with an enantioselecti
Publicado em: 2004
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6. Vida útil dos mexilhões Perna perna cultivados no litoral norte de São Paulo: aferição dos parâmetros físico-químicos e microbiológicos. / The mussels Perna perna shelf-life cultivated in the são paulo state north coast: gauging of the physicochemistry and microbiological parameters.
The quality for consumption of the bivalve mollusks is intimately linked to the environment quality, where these are inserted. In function of the current environmental degradation caused by the growth population and consequent increase in the discharge of sewage in the environment, as well as, for the absence of quality management programs of the cultivation
Publicado em: 2004
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7. Estudo de indices quimicos, sensoriais, microbiologicos e intrumentais para avaliação do frescor de lulas (Loligo plei, Blainville, 1823) armazenadas em gelo
Loligo plei is one of major species of squid caught in brazilian seawater. To study the efficiency of tests used like freshness indices and the shelf life of Loligo plei, squids of this species were caught by hand jiggers or purchased at a local market and stored whole in contact ice (CCG) or in non-contact ice (SCG), in polyethylene bags, during a 16 and 15
Publicado em: 1999
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8. Parametros quimicos e sensoriais para identificação da especie biologica utilizada na elaboração de enlatados de atum e bonito
In the first instance an attempt was made to confirm that the trimethylamine oxide (THA-O) of red meat fish is completelv reduced to trimethvlamine when these fish were submitted to high temperatures, as in the case of canned tunas and bonitos. An attempt was made to use the following chemical determination to identifv the biological species employed in the
Publicado em: 1988
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9. Determinação dos compostos basicos totais de pescado e o seu potencial para avaliação do frescor
This research reports the analytical conditions and application of a new chemical method for the estimation of the freshness of fish. It has been given the name "Total Bases" (TB) to differentiate it from the conventional test for Volatile Bases (V$. The development of the present method was performed with the following species: sardine (Sardinella aurita),
Publicado em: 1985
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10. Parametros de avaliação da maturação de sardinha (Sardinella brasiliensis, S.) no processo de anchovagem
Four stocks of sardines (Sardinella brasiliensis) were ripened following a process used in the Mediterranean countries to prepare anchovies. During the whole process, there were determined several chemical parameters to verify the usefulness of these tests as an objetive criteria for ripening. At the same time, the samples were submitted to sensory evaluatio
Publicado em: 1979
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11. Avaliação do indice de frescor da pescada foguete, macrodon ancylodon, conservada em gelo
Studies were carried out on six samples Df "pescada foguete", Macrodon ancylodon, taken from a "Entreposto de Pesca" of Santos, SP, during the period of March through June, 1975. The fish were stored in ice immediately prepared for market, they were than transported to the laboratory for analyses. Bacteriological, chemical and organoleptic changes were deter
Publicado em: 1975
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12. Proton translocation coupled to trimethylamine N-oxide reduction in anaerobically grown Escherichia coli.
Proton translocation coupled to trimethylamine N-oxide reduction was studied in Escherichia coli grown anaerobically in the presence of trimethylamine N-oxide. Rapid acidification of the medium was observed when trimethylamine N-oxide was added to anaerobic cell suspensions of E. coli K-10. Acidification was sensitive to the proton conductor 3,5-di-tert-buty