ABSTRACT Proteins have been the subject of electrochemical studies. It is possible to apply electrochemical techniques to obtain information about their structure due to the presence of five electroactive amino acids that can be oriented to the outside of the peptidic chain. These amino acids are L-Trypt...
Background: GABA (γ-aminobutyric acid) is a four-carbon nonprotein amino acid that has hypotensive, diuretic, and tranquilizing properties. Glutamate decarboxylase (GAD) is the key enzyme to generate GABA. A simple and economical method of preparing and immobilizing GAD would be helpful for GABA product...
Limosilactobacillus fermentum/enzimología,
Glutamato Descarboxilasa/metabolismo,
Glutamato Descarboxilasa/genética,
Clonación Molecular,
Enzimas Inmovilizadas,
Escherichia coli,
Ácido gamma-Aminobutírico/biosíntesis,
Proteínas Recombinantes de Fusión,
Celulosa,
Adsorción,
Temperatura,
Concentración de Iones de Hidrógeno
ABSTRACT Lactic acid, which can be obtained through fermentation, is an interesting compound because it can be utilized in different fields, such as in the food, pharmaceutical and chemical industries as a bio-based molecule for bio-refinery. In addition, lactic acid has recently gained more interest due...
ABSTRACT An analysis of wastewater samples collected from different industrial regions of Egypt demonstrated dangerously high levels of nickel (0.27-31.50 mg L-1), chromium (1.50-7.41 mg L-1) and zinc (1.91-9.74 mg L-1) in the effluents. Alarmingly, these heavy metals are among the most toxic knownones t...
Metales Pesados/metabolismo,
Nocardia/clasificación,
Nocardia/metabolismo,
Adsorción,
Biodegradación Ambiental,
Biomasa,
Egipto,
Concentración de Iones de Hidrógeno,
Residuos Industriales,
Metales Pesados/toxicidad,
Nocardia/genética,
Nocardia/aislamiento & purificación,
ARN Ribosómico 16S/genética,
Temperatura,
Factores de Tiempo,
Aguas Residuales/microbiología,
Contaminantes Químicos del Agua/metabolismo
Bioremediation of contaminated groundwater or soil is currently the cheapest and the least harmful method of removing xenobiotics from the environment. Immobilization of microorganisms capable of degrading specific contaminants significantly promotes bioremediation processes, reduces their costs, and als...
El níquel es un metal pesado altamente contaminante que por sus efectos toxicológicos es materia de gran preocupación, por lo que toma importancia la búsqueda de alternativas para su remoción, siendo la adsorción una alternativa aplicable para la remoción metálica, interesante por su eficiencia y...
Background Clavulanic acid is an important beta-lactamase inhibitor produced as a secondary metabolite by the actinomycete Streptomyces clavuligerus. Clavulanic acid is chemically unstable; therefore, it is degraded during bacterial cultivation. In this work, the adsorbents clinoptilolite, activated carb...
Nowadays, the main reasons for replacement of resin-based composite restorations are fracture or problems with the integrity of their interface, such as marginal staining, microleakage, or secondary caries. The aim of the present study was to evaluate the influence of the organic matrix on polymerization...
Adsorción,
Análisis de Varianza,
Resinas Compuestas/química,
Análisis del Estrés Dental,
Módulo de Elasticidad,
Pruebas de Dureza,
Ensayo de Materiales,
Metacrilatos/química,
Transición de Fase/efectos de los fármacos,
Fotoiniciadores Dentales/química,
Docilidad,
Polietilenglicoles/química,
Polimerizacion/efectos de los fármacos,
Ácidos Polimetacrílicos/química,
Valores de Referencia,
Reproducibilidad de los Resultados,
Solubilidad,
Espectroscopía Infrarroja por Transformada de Fourier,
Factores de Tiempo
Se estudia el efecto de las modificaciones a carbón activado y recubrimiento con quitosano de biomasa lignocelulósica obtenida de cáscaras de plátano y naranja, para la adsorción de Cr (VI). La caracterización de los grupos funcionales en las biomasas aptos para la adsorción se verificó mediante ...
Arthrosphira (Spirulina) platensis apresenta substâncias de interesse nas indústrias alimentícia, farmacêutica e cosmética. A produção industrial envolve uma quantidade muito grande de água e sua viabilidade deve contemplar o reuso do meio, visando uma diminuição de custos com nutrientes, bem c...
