The aim of this study was to assess the vitality and lung function of preterm lambs. Twenty seven preterm lambs were divided in four groups. Group I (n=6) preterm lambs/ control; group II (n=9) lambs born to mothers that were treated with dexamethasone antepartum; group III (n=6) lambs treated with surfa...
Abstract Objectives The aim of this study was to evaluate the influence of surfactants 0.2% or 0.1% cetrimide (Cet) or 0.008% benzalkonium chloride (BAK) on 2.5% calcium hypochlorite (Ca(OCl)2), and compare to sodium hypochlorite (NaOCl), regarding the properties of pH, free chlorine content, surface te...
Análisis de Varianza,
Compuestos de Benzalconio/química,
Compuestos de Benzalconio/farmacología,
Compuestos de Calcio/química,
Compuestos de Calcio/farmacología,
Cetrimonio/química,
Cetrimonio/farmacología,
Cloro/análisis,
Pulpa Dental/efectos de los fármacos,
Dentina/efectos de los fármacos,
Enterococcus faecalis/efectos de los fármacos,
Concentración de Iones de Hidrógeno,
Ensayo de Materiales,
Valores de Referencia,
Reproducibilidad de los Resultados,
Irrigantes del Conducto Radicular/química,
Hipoclorito de Sodio/química,
Hipoclorito de Sodio/farmacología,
Estadísticas no Paramétricas,
Propiedades de Superficie,
Tensoactivos/química,
Tensoactivos/farmacología
Abstract Biosurfactants have many advantages over synthetic surfactants but have higher production costs. Identifying microorganisms with high production capacities for these molecules and optimizing their growth conditions can reduce cost. The present work aimed to isolate and identify a fungus with hig...
Medios de Cultivo/metabolismo,
Fermentación,
Fusarium/química,
Fusarium/crecimiento & desarrollo,
Fusarium/metabolismo,
Concentración de Iones de Hidrógeno,
Microbiología Industrial/métodos,
Tensoactivos/química,
Tensoactivos/metabolismo,
Temperatura,
Trehalosa/metabolismo
Surfactants are amphipathic compounds containing both hydrophilic and hydrophobic groups, capable to lower the surface or interfacial tension. Considering the advantages of the use of biosurfactants produced by microorganisms, the aim of this paper was to develop and characterize a biosurfactant produced...
Análisis de Varianza,
Recuento de Colonia Microbiana,
Medios de Cultivo,
Electroforesis en Gel de Poliacrilamida,
Fermentación,
Concentración de Iones de Hidrógeno,
Líquenes/microbiología,
Valores de Referencia,
Semillas/efectos de los fármacos,
Aceite de Soja/química,
Espectroscopía Infrarroja por Transformada de Fourier,
Streptomyces/metabolismo,
Tensoactivos/metabolismo,
Factores de Tiempo,
Temperatura
Bisphenol-A is currently considered an environmental pollutant, capable of interfering in the endocrine system of organisms and causing alterations in its development and reproductive system. An alternative method to the chemical treatment of this pollutant has been the use of oxidative enzymes, especial...
ABSTRACT Role of microbes in bioremediation of oil spills has become inevitable owing to their eco friendly nature. This study focused on the isolation and characterization of bacterial strains with superior oil degrading potential from crude-oil contaminated soil. Three such bacterial strains were selec...
Acinetobacter baumannii/enzimología,
Acinetobacter baumannii/genética,
Acinetobacter baumannii/crecimiento & desarrollo,
Acinetobacter baumannii/metabolismo,
Actinobacteria/enzimología,
Actinobacteria/genética,
Actinobacteria/crecimiento & desarrollo,
Actinobacteria/metabolismo,
Proteínas Bacterianas/genética,
Proteínas Bacterianas/metabolismo,
Biodegradación Ambiental,
Corynebacterium/enzimología,
Corynebacterium/genética,
Corynebacterium/crecimiento & desarrollo,
Corynebacterium/metabolismo,
Dioxigenasas/genética,
Dioxigenasas/metabolismo,
India,
Petróleo/análisis,
Petróleo/microbiología,
Contaminación por Petróleo/análisis,
Filogenia,
Microbiología del Suelo,
Contaminantes del Suelo/metabolismo,
Tensoactivos/química,
Tensoactivos/metabolismo
ABSTRACT This study was to develop, characterize, and evaluate the physical-chemical stability, in vitro antioxidant activity and in vitro safety profile of liquid crystalline systems (LCS) and microemulsions (MEs) with and without organic cocoa (OC) extract. LCS stabilized by surfactant polyoxyethylene ...
Abstract The possible application of a bacterial strain - Bacillus subtilis R1, isolated from an oil contaminated desert site in India, as biocontrol agent and its biosurfactant in microbial enhanced oil recovery are discussed. The biosurfactant production in minimal medium was carried out at different t...
Bacillus subtilis/metabolismo,
Lipopéptidos/biosíntesis,
Antifúngicos/metabolismo,
Antifúngicos/farmacología,
Bacillus subtilis/clasificación,
Bacillus subtilis/genética,
Concentración de Iones de Hidrógeno,
Lipopéptidos/farmacología,
Ingeniería Metabólica,
Pruebas de Sensibilidad Microbiana,
Mutagénesis,
ARN Ribosómico 16S/genética,
Espectrometría de Masa por Láser de Matriz Asistida de Ionización Desorción,
Espectroscopía Infrarroja por Transformada de Fourier,
Tensoactivos/metabolismo,
Tensoactivos/farmacología
RESUMEN Introducción: la enfermedad de membrana hialina, es una patología que afecta a prematuros, principalmente los menores de 30 semanas. Existen en el momento actual varios tipos de surfactantes para el tratamiento de esta entidad, los cuales han mostrado eficacia similar, pero algunos resultan s...
Abstract Various chemical compounds, including surfactants, when introduced to culture media may increase the permeability of cellular membranes and thereby affect the quantity of metabolites excreted by cells. The aim of the present study was to evaluate the impact of detergents including Triton X-100, ...
Medios de Cultivo/metabolismo,
Eritritol/biosíntesis,
Manitol/metabolismo,
Tensoactivos/metabolismo,
Yarrowia/metabolismo,
Medios de Cultivo/química,
Eritritol/análisis,
Manitol/análisis,
Octoxinol/análisis,
Octoxinol/metabolismo,
Polisorbatos/análisis,
Polisorbatos/metabolismo,
Tensoactivos/análisis
