Salicin
Mostrando 1-12 de 82 artigos, teses e dissertações.
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1. Gender differences in biochemical markers and oxidative stress of rats after 28 days oral exposure to a mixture used for weight loss containing p-synephrine, ephedrine, salicin, and caffeine
RESUMO A associação de p-sinefrina, efedrina, salicina, e cafeína em suplementos alimentares e produtos para perda de peso é muito utilizada em todo o mundo, embora a efedrina tenha sido proibida em muitos países. O objetivo deste estudo foi avaliar o perfil de toxicidade à exposição oral de 28 dias à associação de p-sinefrina, efedrina, salicina
Braz. J. Pharm. Sci.. Publicado em: 2016-03
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2. Regulation of gene expression: Cryptic β-glucoside (bgl) operon of Escherichia coli as a paradigm
Bacteria have evolved various mechanisms to extract utilizable substrates from available resources and consequently acquire fitness advantage over competitors. One of the strategies is the exploitation of cryptic cellular functions encoded by genetic systems that are silent under laboratory conditions, such as the bgl (β-glucoside) operon of E. coli. The bg
Braz. J. Microbiol.. Publicado em: 2014-12
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3. Análise química e toxicológica de suplementos alimentares e compostos emagrecedores contendo p-sinefrina associada a efedrina, salicina e cafeína
Os suplementos alimentares e compostos emagrecedores a base de extratos vegetais têm uso muito difundido e indiscriminado, principalmente pela diversidade de produtos disponíveis e facilidade de acesso aos mesmos, aliada à falsa crença popular de que ¿o que é natural não faz mal¿. Produtos contendo a associação de psinefrina, efedrina, salicina e c
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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4. Avaliação da neurotoxicidade por teste de atividade locomotora espontânea e rota-rod em camundongos tratados com associação de p-sinefrina, efedrina, cafeína e salicina
Suplementos alimentares e compostos emagrecedores à base de extratos vegetais têm seu uso muito difundido e indiscriminado, principalmente pela diversidade de produtos disponíveis e facilidade de acesso aos mesmos. A associação de p-sinefrina, efedrina, cafeína e salicina é bastante comum nessas formulações, porém estudos sobre o sinergismo farmaco
Publicado em: 2010
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5. Salicilatos isolados de folhas e talos de Salix martiana Leyb. (Salicaceae)
Salix martiana Leyb. is an endemic species from the Amazon river floodplain areas (varzeas), of the State of Amazonas. Stems and leaves were extracted with dichloromethane, methanol and hydro-alcohol and these extracts were fractionated by using conventional chromatographic techniques. The major substances isolated, salicin and trichocarposide (6-0-p-coumaro
Química Nova. Publicado em: 2009
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6. Avaliação de meios de cultura para quantificação de lactobacilos e bifidobacterias e contagem destes microrganismos em produtos lacteos
This is a study about the behaviour of the different strains of lactic acid bacteria (eg: Lactobacillus acidophilus, L. lactis, L. delbruekií susp. bulgaricus, Streptococus thermophilus) and bifidobacteria, with different culture media (MRS, MRS- maltose, MRS -salicin, HHD eLA), in order to evaluate the similarity among them, the capacity of each one to rec
Publicado em: 2003
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7. A Fourth Escherichia Coli Gene System with the Potential to Evolve β-Glucoside Utilization
Escherichia coli K12 is being used to study the potential for adaptive evolution that is present in the genome of a single organism. Wild-type E. coli K12 do not utilize any of the β-glucoside sugars arbutin, salicin or cellobiose. It has been shown that mutations at three cryptic loci allow utilization of these sugars. Mutations in the bgl operon allow ind
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8. Differentiation of Bacteroides ovatus and Bacteroides thetaiotaomicron by means of bacteriophage.
Two members of the Bacteroides fragilis group, B. ovatus and B. thetaiotaomicron, are difficult to distinguish by biochemical methods. They are currently identified on the basis of their variable ability to ferment salicin. We studied a method of identification for these two species by using cell lysis by bacteriophages. A total of 38 bacteriophages were use
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9. Growth of Azospirillum irakense KBC1 on the Aryl β-Glucoside Salicin Requires either salA or salB
The rhizosphere nitrogen-fixing bacterium Azospirillum irakense KBC1 is able to grow on pectin and β-glucosides such as cellobiose, arbutin, and salicin. Two adjacent genes, salA and salB, conferring β-glucosidase activity to Escherichia coli, have been identified in a cosmid library of A. irakense DNA. The SalA and SalB enzymes preferentially hydrolyzed a
American Society for Microbiology.
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10. Inducible System for the Utilization of β-Glucosides in Escherichia coli II. Description of Mutant Types and Genetic Analysis
Two types of mutants obtained by treating β-gl+ cells with nitrosoguanidine are described. One type, β-gl+c, is constitutive for the biosynthesis of the aryl β-glucoside splitting enzyme(s) and for the β-glucoside permease; the other (β-gl+sal−) has lost the capacity to ferment salicin, but has retained the capacity to ferment arbutin and other aryl �
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11. SALICIN FERMENTATION BY SHIGELLA SONNEI
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12. New selective plating medium for isolation of Vibrio vulnificus biogroup 1.
A new plating medium (VV agar) has been developed as an alternative to thiosulfate-citrate-bile salts-sucrose (TCBS) agar for the isolation of Vibrio vulnificus. Salicin (2% wt/vol) is employed as the source of carbohydrate, with potassium tellurite (0.0005% wt/vol), crystal violet (0.00015% wt/vol), oxgall (0.8% wt/vol), and a pH of 8.6 to inhibit growth of