Browsing by Title Facultad de Ciencias Químicas y Farmacéuticas
Now showing items 3755-3774 of 4848
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(Universidad de Chile, 2012)El siguiente trabajo corresponde a la unidad de práctica profesional realizada en Laboratorios Bellcos, esta empresa adquirió un nuevo sistema de producción de agua que utilizará en la fabricación de cosméticos. El objetivo ...
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(IOP Publishing, 2015)This paper demonstrates that it is possible to trap and release a super paramagnetic micro bead by fixing three super paramagnetic micro beads in a triangular array at the sensitive end of a micro cantilever, and by simply ...
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(Universidad de Chile, 2016)En esta Memoria de Título se purificó L-Ficolina humana. A nivel nacional, no hay esfuerzos reportados en este sentido. Esta purificación se realiza en el contexto de los intereses de una de las líneas centrales de ...
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(Universidad de Chile, 2023)Las lipasas son enzimas que catalizan la hidrólisis de ésteres carboxílicos de cadena larga, que en presencia de solventes orgánicos pueden biocatalizar reacciones de síntesis orgánica. Sin embargo, el uso de solventes ...
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(Universidad de Chile, 2017)Las lacasas son enzimas de la familia de las multi-cobre oxidasas que han suscitado mucho interés debido a su amplia especificidad de sustrato, la variabilidad de sus propiedades entre cada especie, y su todavía elusivo ...
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(Universidad de Chile, 2016)Las xilanasas son enzimas encargadas de hidrolizar el enlace β-1,4-D-xilosídico de la cadena principal del xilano, el compuesto más abundante de la hemicelulosa presente en la pared celular de las células vegetales. Estas ...
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(Universidad de Chile, 2011)Las bacteriocinas son péptidos antimicrobianos de síntesis ribosomal producidos por microorganismos, principalmente del dominio bacteria. Las bacteriocinas producidas por bacterias Gram positivo o Gram negativo, presentan ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 1992-11)Two isoenzymes of ATP-diphosphohydrolase (apyrase) were extracted and purified from S. tuberosum var. Ultimus. Their hydrolytic activity ratios (ATPase/ADPase) were 1.0 (apyrase B) and ca 15.0 (apyrase A). They were ...
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(1995)Phosphoenolpyruvate carboxykinase (PEPCK) from the adductor muscle of Perumytilus purpuratus was purified to homogeneity, as determined by SDS-polyacrylamide gel electrophoresis (PAGE). The purification consisted of a ...
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(2011)The bleaching of the pyrogallol red (PGR) dye mediated by superoxide anion radicals (O2-) generated from the xanthine/xanthine oxidase system (X/XO) was studied by UV-visible spectrophotometry. The absorption band (at 540 ...
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(2006-05)BACKGROUND: Health economic analyses have become important to healthcare systems worldwide. No studies have previously examined South America’s contribution in this area. OBJECTIVE: To survey the literature with the ...
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(WILEY-V C H VERLAG GMBH, 2006-07)The slurry ice technology has shown wide advantages when employed as a chilling method for marine species instead of the traditional flake ice storage. In the present work, the use of slurry ice was evaluated for the first ...
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(Springer, 2016)Bifurcaria bifurcata is a widely extended brown macroalga, whose antimicrobial and antioxidant properties have previously been described. In this study, ethanolic extracts of B. bifurcata were included in the icing medium ...
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(INST GRASA SUS DERIVADOS, 1990-07)The accelerated test of Schaal was applied to chilean commercial grapeseed oil, in order to know the deterioration of its quality. The aged samples were analized for sensory evaluation in scale 1 to 10, considering together ...
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(2009)The exposure of organisms to ultraviolet radiation (UVR) is characterized by the climatology (annual cycle) and the variance (anomalies) of biologically-weighted irradiances at eight geographical locations in austral South ...
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(Wiley, 2020)Vinasse (pisco distillation waste) is a promising feedstock for developing new high value-added bioproducts because it is supporting sustainable production as an agroindustrial by-product. The aims of this study were to ...
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(Elsevier, 2017)Quantum-controlled motion of nuclei, starting from the nanometer-size ground state of a molecule, can potentially overcome some of the difficulties of thermonuclear fusion by compression of a fuel pellet or in a bulk ...
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(Elsevier, 2014)A simple and sensitive method for quantification of nanomolar copper with a detection limit of 1.2 x 10-10 M and a linear range from 10-9 to 10-8 M is reported. For the most useful analytical concentration of quantum ...
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(2003)Detection of singlet molecular oxygen, O2(1Δ g), by phosphorescence emission, λ = 1270 nm, following laser excitation was employed to measure the quantum yield of O2( 1δg) generation by the antimalaric drugs quinine, ...
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(Elsevier Inc, 2008-06)Time-averaged conformations of ( )-1-[3,4-(methylenedioxy)phenyl]-2-methylaminopropane hydrochloride (MDMA, ‘‘ecstasy’’) in D2O, and of its free base and trifluoroacetate in CDCl3, were deduced from their 1H NMR spectra ...