Materias
(55)
Article : texto impreso
Desde mediados de la década del 50, el proceso kraft ha sido el método dominante de obtención de pulpa de madera en todo el mundo. Pautas ambientales recientes y el enorme costo que está asociado con la construcción de una moderna instalación pa[...]texto impreso
Lignocellulosic biomass for conversion to ethanol can be obtained from three sources, traditional standing timber, biomass crops and waste biomass. Standing timber costs approximately $40 per tonne, a cost which is variable depending upon demand[...]documento electrónico
SILVANA BONIFACINO, Autor ; RESQUIN, FERNANDO, Autor ; LOPRETTI, MARY, Autor ; LUCIANA BUXEDAS, Autor ; SYLVIA VÁZQUEZ, Autor ; MARIANA GONZÁLEZ, Autor ; ALEJANDRA SAPOLINSKI, Autor ; ANDRÉS HIRIGOYEN, Autor ; DOLDAN, JAVIER, Autor ; CECILIA RACHID, Autor ; LEÓNIDAS CARRASCO, Autor | 2021Experimental scale crops for Eucalyptus grandis, Eucalyptus benthamii, Eucalyptus dunnii and Eucalyptus tereticornis, at 2,220, 4,440 and 6,660 trees ha−1 were established in two soil units, at Paysandú and Tacuarembó, Uruguay. Wood samples were[...]Article : documento electrónico
ANA INÉS SILVA, Autor ; MARÍA EUGENIA FERRANDO, Autor ; FERREIRA, ELIZABETH, Autor |En este artículo se presenta el trabajo del Departamento de Metrología Química para el desarrollo del servicio de calibración de espirómetros basado en la recomendación internacional de la Organización Internacional de Metrología Legal OIML R126[...]texto impreso
Steam-explosion process can be satisfactorily used as a pretreatment in ethanol production from lignocellulosic biomass. Traditionally, pretreatment effectiveness is evaluated in terms of hemicellulose solubilization, enzymatic convertibility of[...]documento electrónico
ELOISA ROCHÓN, Autor ; MARÍA NOEL CABRERA, Autor ; VALENTINA SCUTARI, Autor ; MATÍAS CAGNO, Autor ; ABIGAIL GUIBAUD, Autor ; SANTIAGO MARTÍNEZ, Autor ; SILVIA BÖTHIG, Autor ; GUCHIN, NIKOLAI, Autor ; MARIO DANIEL FERRARI, Autor ; CLAUDIA LAREO, Autor | 2022In this work, Eucalyptus grandis sawdust was investigated as raw matter for the co-production of xylosaccharides (XS) and bioethanol by steam explosion pretreatment with and without a previous NaOH impregnation stage. The acetyl groups were comp[...]documento electrónico
C. R. SOUTH, Autor ; D. A. HOGSETT, Autor ; L. R. LYND, AutorExperimental results are presented for continuous conversion of pretreated hardwood flour to ethanol. A simultaneous saccharification and fermentation (SSF) system comprised ofTrichoderma reesei cellulase supplemented with additional β-glucosida[...]texto impreso
Experimental results are presented for continuous conversion of pretreated hardwood flour to ethanol.texto impreso
MC ALOON, ANDREW /et al/ | Colorado [ESTADOS UNIDOS] : National Renewable Energy Laboratory | Technical Report | 2000The mature corn-to-ethanol industry has many similarities to the emerging lignocelluloseto-ethanol industry. It is certainly possible that some of the early practitioners of this new technology will be the current corn ethanol producers. In orde[...]documento electrónico
DANIEL BURKE, Autor ; LINDSEY MACKAY, Autor ; RICHARD MYORS, Autor ; JUDITH CUTHBERTSON, Autor ; JEREMY RICHARDSON, Autor ; NIGEL SOUSOU, Autor ; DAVID SAXBY, Autor ; SHANE ASKEW, Autor ; REBECCA O'BRIEN, Autor | 2009In response to the sovereign requirement for national standards the National Measurement Institute, Australia (NMIA) has developed a measuring system using isotope dilution mass spectrometry (IDMS) to certify forensic aqueous ethanol solutions. [...]texto impreso
Wheat straw consists of 48.57 +- 0.30% cellulose and 27.70 +- 0.12% hemicellulose on dry solid (DS) basis and has the potential to serve as a low cost feedstock for production of ethanol. Dilute acid pretreatment at varied temperature and enzyma[...]documento electrónico
DANIEL J SCHELL, Autor ; JODY FARMER, Autor ; MILLIE NEWMAN, Autor ; JAMES D MCMILLAN, AutorCorn stover is a domestic feedstock that has potential to produce significant quantities of fuel ethanol and other bioenergy and biobased products. However, comprehensive yield and carbon mass balance information and validated kinetic models for[...]texto impreso
Corn stover is a domestic feedstock that has potential to produce significant quantities of fuel ethanol and other bioenergy and biobased products. However, comprehensive yield and carbon mass balance information and validated kinetic models for[...]texto impreso
Reducir la alta dependencia energética de los productos petrolíferos, y aumentar la seguridad del suministro de un combustible sostenible en el sector del transporte constituye un objetivo prioritario de la estrategia energética en la Unión Euro[...]Article : texto impreso
Efecto del almacenamiento de residuos del aserrado de pinos y abetos y su adaptabilidad como materias primas para tableros de partículas y tableros de fibra de densidad media (MDF). Parte 2: Investigaciones analíticas y microscópicas sobre el ca[...]texto impreso
CARRILLO, LEONOR | 2004En este trabajo se analiza la fotosíntesis, biomasa, la conversión por microorganismos y la producción de etanol, biogas y biodisel.texto impreso
En este trabajo se realiza a escala de laboratorio el proceso de hidrólisis ácida del bagazo utilizando ácido sulfúrico concentrado en una sola etapa y en una etapa modificada.texto impreso
Simultaneous saccharification and fermentation (SSF) process for ethanol production from various lignocellulosic woody (poplar and eucalyptus) and herbaceous (Sorghum sp. bagasse, wheat straw and Brassica carinata residue) materials has been ass[...]texto impreso
documento electrónico
GÓMEZ, BLANCA, Autor ; CAROLINA TARTAGLIA, Autor ; GUSTAVO DOMÍNGUEZ, Autor | Montevideo [URUGUAY] : Laboratorio Tecnológico del Uruguay (LATU) | 2017El uso de combustibles fósiles no es sustentable, por lo que es necesario desarrollar tecnologías sustentables, renovables y que permitan cubrir la demanda energética. En Uruguay se realiza la transformación del grano de sorgo en etanol desde ha[...]texto impreso
The ethanol yield and productivity obtained during fermentation of lignocellulosic hydrolysates is decreased due to the presence of inhibiting compounds, such as weak acids, furans and phenolic compounds formed or released during hydrolysis. Thi[...]texto impreso
During hydrolysis of lignocellulosic materials a wide range of compounds which are inhibitory to microorganisms are formed or released. Based on their origin the inhibitors are usually divided in three major groups: weak acids, furan derivatives[...]Article : texto impreso
Los principales grupos funcionales de los varios componentes recuperados de los extractivos de la madera de Pai utilizando solventes orgánicos, han sido identificados y asignados por medio del análisis infrarrojo por Transformada de Fourier.El a[...]texto impreso
Lignocellulosic biomass can be utilized to produce ethanol, a promising alternative energy source for the limited crude oil. There are mainly two processes involved in the conversion: hydrolysis of cellulose in the lignocellulosic biomass to pro[...]texto impreso
The presumed high cost of cellulase enzymes is seen as a major economic hurdle in ethanol fuel production from lignocellulosic biomass. One way to reduce enzyme cost is to use much less enzyme per unit of biomass hydrolysed. The ammonia fiber ex[...]documento electrónico
CARMINA REYES PLASCENCIA, Autor ; MATÍAS CAGNO, Autor ; PIERRE CABOT, Autor ; NÉSTOR TANCREDI, Autor | Latitud - Fundación LATU | 2023Lignin-rich slurry has a high water content. Therefore LHT is desirable because the biomass does not need to be dried, so the energy loss linked to the drying process is avoided.Article : documento electrónico
LOPRETTI, MARY, Autor ; LOPEZ, ANA, Autor ; DAMBORIARENA, AGUSTIN, Autor ; OTTATI, CAROLINA, Autor ; FABIANA REY BENTOS, Autor |Dentro INNOTEC (No. 2, dic. 2007)El estudio de vías alternativas con mayores rendimientos y bajos costos es en estos días el foco de estudio en el tema Bioetanol, por tal motivo, en el presente trabajo se utilizaron dos cepas de hongos filamentosos; Trichoderma harzianum y Pleu[...]Article : texto impreso
El lavado de la pulpa de solventes basada en etanol ( proceso Alcell (R)) en una solucion de etanol -agua puede reducir significativamente el contenido de lignina.este estudio presenta los resultados de un trabajo de laboratorio diseñado para op[...]texto impreso
ADEN, A. /et al/ | Colorado [ESTADOS UNIDOS] : National Renewable Energy Laboratory | Technical Report | 2002The U.S. Department of Energy (DOE) is promoting the development of ethanol from lignocellulosic feedstocks as an alternative to conventional petroleum-based transportation fuels. DOE funds both fundamental and applied research in this area and [...]documento electrónico
VALERIA VÁZQUEZ, Autor ; VICTORIA GIORGI, Autor ; BONFIGLIO, FERNANDO, Autor ; PILAR MENÉNDEZ, Autor ; GIOIA, LARISSA, Autor ; OVSEJEVI, KAREN, Autor | 2023The full utilization of the main components in the lignocellulosic biomass is the major goal from a biorefinery point of view, giving not only environmental benefits but also making the process economically viable. In this sense the solid residu[...]documento electrónico
OTTATI, CAROLINA, Autor ; F. ARES, Autor ; DAMBORIARENA, AGUSTIN, Autor ; LOPRETTI, MARY, Autor | 2011Citrus peel wastes are partly used for cattle feed either fresh or after ensilage or dehydration, but considerable quantity of citrus pulp in the fresh state is lost as a result of the difficulty of rapidly disposing a large quantity of the wast[...]documento electrónico
LOPRETTI, MARY, Autor ; LAURA OLAZÁBAL, Autor | 2014La protección de los microorganismos mediante microencapsulación se desarrolla en forma creciente, donde es importante encontrar un soporte adecuado que sea biocompatible y estable en el tiempo. En este trabajo se estudiáron tres sistemas de enc[...]texto impreso
El peso creciente del sector del transporte en la demanda de energía pone en manifiesto la necesidad de emprender acciones para mejorar la eficiencia y desarrollar alternativas de diversificación energética. Esta diversificación contempla difere[...]texto impreso
Pretreatment of mixed softwoods with impregnation and steam SO2 for production of ethanol has been investigated. The optimal conditions, both for sugar yield and ethanol yield, to assess the effect of inhibitors formed in the pretreatment, have [...]Article : texto impreso
Los autores examinan el pulpeo autocatalizado con etanol del cáñamo, una planta anual potencial, según el esquema de rotación holandés, de producir pulpa química. El artículo presesnta las condiciones de delignificación batch y los resultados pa[...]texto impreso
Ethanol is a high performance fuel in internal combustion engines. It is a liquid, which is advantageous in terms of storage, delivery, and infrastructural compatability. Ethanol burns relatively cleanly, especially as the amount of gasoline wit[...]documento electrónico
BONFIGLIO, FERNANDO, Autor ; MATÍAS CAGNO, Autor ; TORRES, MARINA, Autor ; SILVIA BÖTHIG, Autor ; PILAR MENÉNDEZ, Autor ; SOLANGE I. MUSSATTO, Autor | 2017Switchgrass (Panicum virgatum) is a perennial warm season grass highly valued as an energy crop resource for the production of bioethanol due to its high carbohydrate content, fast growth, and ability to grow in lands that cannot support crop or[...]documento electrónico
BONFIGLIO, FERNANDO, Autor ; MATÍAS CAGNO, Autor ; TORRES, MARINA, Autor ; SILVIA BÖTHIG, Autor ; PILAR MENÉNDEZ, Autor ; SOLANGE I. MUSSATTO, Autor ; FABIANA REY BENTOS, Autor | 2019Switchgrass (Panicum virgatum) is a perennial grass highly valued as an energy crop resource for the production of bioethanol due to its high carbohydrate content, fast growth, and ability to grow in lands that cannot support crop or food produc[...]texto impreso
Cellulosic pyrolysate containing levoglucosan was chemically hydrolyzed and a maximum glucose yield of 17.35% was obtained by the hydrolysis with 0:2 mol=l H2SO4 at 121.C for 20 min. The total initial glucose was maintained at 41:9 g=l by diluti[...]texto impreso
Successful deployment of a bioethanol process depends on the integration of technologies that can be economically commercialized. Pretreatment and fermentation operations of the traditional enzymatic bioethanol-production process constitute the [...]documento proyectable o vídeo
El video muestra la disponibilidad de biomasa residual de pino y su utilización para la producción de bioetanol y otros productos de valor, mediante una explicación breve del proceso y sus potencialidades, ilustrado con imágenes de laboratorio y[...]texto impreso
Producción biotecnológica de alcohol carburante I : obtención a partir de diferentes materias primas
La única forma de encarar la problemática de la contaminación ambiental generada por los gases tóxicos de los combustibles, es mediante recursos energéticos renovables. Para ello la biotecnología ofrece múltiples alternativas, una de ellas es el[...]documento electrónico
LEÓNIDAS CARRASCO, Autor ; SILVIA BÖTHIG, Autor ; BONFIGLIO, FERNANDO, Autor ; SOLANGE I. MUSSATTO, Autor ; MATÍAS CAGNO, Autor ; FABIANA REY BENTOS, Autor ; DOUNE, CARLOS ANDRES, Autor ; RESQUIN, FERNANDO, Autor ; GUCHIN, NIKOLAI, Autor | 2018La producción de combustibles de segunda generación ha tomado relevancia a nivel mundial, teniendo en cuenta la necesidad de reducir las emisiones de carbono a la atmósfera y también de encontrar alternativas a los recursos fósiles de naturaleza[...]texto impreso
Ethanol and mycelial biomass production from dilute-acid hydrolyzed hemicellulose fraction of rice straw was investigated by cultivation of Mucor indicus and compared with cultivation of Pichia stipitis. The hydrolysis resulted in 189 g xylose a[...]texto impreso
The wet oxidation process (water, oxygen, elevated temperature, sodium carbonate) was investigated as a means of solubilising hemicellulose from wheat straw. Sixteen different combinations of oxygen pressure and sodium carbonate concentration we[...]documento proyectable o vídeo
MATÍAS CAGNO, Autor ; CARMINA REYES PLASCENCIA, Autor ; NÉSTOR TANCREDI, Autor | Latitud - Fundación LATU | 2022El video muestra la valorización de residuos de biomasa, agroindustriales y forestales, para la producción de bioetanol y biocrudo por explosión de vapor y licuefacción hidrotérmica, a través de una explicación breve del proceso y sus potenciali[...]texto impreso
G. SHOHAT-OPHIR, Autor ; K. R. KAUN, Autor ; R. AZANCHI, Autor ; U. HEBERLEIN, AutorThe brain’s reward systems reinforce behaviors required for species survival, including sex, food consumption, and social interaction. Drugs of abuse co-opt these neural pathways, which can lead to addiction. Here, we used Drosophila melanogas[...]documento electrónico
W.E. KAAR, Autor ; C.V. GUTIERREZ, Autor ; C.M KINOSHITA, AutorThe State of Hawaii is interested in converting the large volume of agricultural residues, principally sugarcane bagasse, that is generated in the state into transportation fuels. One of the technologies that is currently being evaluated is stea[...]texto impreso
texto impreso
BONFIGLIO, FERNANDO, Autor ; FABIANA REY BENTOS, Autor ; SILVIA BÖTHIG, Autor ; MATÍAS CAGNO, Autor ; PILAR MENÉNDEZ, Autor ; SOLANGE I. MUSSATTO, Autor | 2018Switchgrass (Panicum virgatum) is a perennial warm season grass highly valued as an energy crop resource for the production of bioethanol due to its high carbohydrate content, fast growth, and ability to grow in lands that cannot support crop or[...]