Lignocellulosic Wastes
Mostrando 1-11 de 11 artigos, teses e dissertações.
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1. A Study of Chemical Composition and Enzymatic Hydrolysis of Solid Organic Waste from Agrosilvopastoral Systems
Agrosilvopastoral waste, regarding agriculture and agro-industry sectors, is pointed as a promising sustainable raw material for biofuels production, specially concerning exploitation of lignocellulosic organic residues for fermentable sugars and cellulosic ethanol output, being therefore necessary to investigate the potential of these substrates concerning
J. Braz. Chem. Soc.. Publicado em: 16/09/2019
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2. Does the Addition of Cotton Wastes Affect the Properties of Particleboards?
ABSTRACT A wide range of materials for the development of new products can be obtained from natural resources. Good examples of these materials are lignocellulosic wastes, which are a good alternative for the production of particleboards. This study aimed to evaluate the feasibility of using cotton wastes in association to eucalyptus particles in the produc
Floresta Ambient.. Publicado em: 04/04/2019
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3. THE FUNGAL ABILITY FOR BIOBLEACHING/BIOPULPING/BIOREMEDIATION OF LIGNIN-LIKE COMPOUNDS OF AGRO-INDUSTRIAL RAW MATERIAL
Lignin is present in plant cell secondary wall, associated to carbohydrates preventing their efficient hydrolysis, and cellulose pulp manufacture basically consists in breaking down the middle lamella of plant cells, individualizing fibers such as cellulose from the other biopolymers. Different levels of lignocellulose are found in plant residues and they ca
Quím. Nova. Publicado em: 2017-09
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4. Particles of Coffee Wastes as Reinforcement in Polyhydroxybutyrate (PHB) Based Composites
The objective of the present study was to evaluate lignocellulosic particles from sub-products of the coffee industry (coffee parchment - CP and husk - CH) into polyhydroxybutyrate (PHB) as a promising reinforcing filler in the biocomposites. The effects of type (CP or CH) and content (neat, 10% and 20%) of coffee wastes on the thermal, mechanical, microstru
Mat. Res.. Publicado em: 2015-06
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5. Ethanol production from agricultural wastes using Sacchromyces cervisae
The main objective of this study was production of ethanol from three lignocellulosic biomasses like sugarcane bagasse, rice straw and wheat straw by Sacchromyces cervisae. All the three substrates were ground to powder form (2 mm) and pretreated with 3%H2O2 + 2% NaOH followed by steaming at 130 °C for 60 min. These substrates were hydrolyzed by commercial
Braz. J. Microbiol.. Publicado em: 2014-06
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6. Aproveitamento das fraÃÃes hemicelulÃsica e celulÃsica dos resÃduos do processamento do girassol para produÃÃo de bioetanol / Utilization of hemicellulosic and cellulosic fractions of waste from sunflower processing for bioethanol production
The researches on second generation ethanol, produced by agroindustrial wastes, have demanded special attention as a possible solution that can contribute to energy sustainability. Such production is based on lignocellulosic fiber conversion (cellulose and hemicellulose), which generates fermentable sugars that are biotransformed in bioethanol after some spe
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/02/2012
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7. BioconversÃo de resÃduos agroindustriais por micro-organismos do bioma amazÃnico produtores de enzimas lignocelulolÃticas / Bioconversion of agro-industrial residues by microorganisms from the Amazon biome producers of lignocellulolytic enzymes
A biomassa lignocelulÃsica contÃm altos teores de celulose e outros polissacarÃdeos em sua constituiÃÃo quÃmica, podendo ser hidrolisados em aÃÃcares fermentescÃveis. A geraÃÃo de resÃduos agroindustriais anual tem crescido resultando no acÃmulo de resÃduos que contribuem para a poluiÃÃo do meio ambiente e na perda de materiais que possuem po
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/02/2012
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8. Biodegradable polymer composites based on Brazilian lignocellulosic
Use of eco friendly and energy saving biomaterials and processes have enabled to overcome the effects of growing urbanization and population along with increasing agro-industrial wastes. This has led to a new approach to the industrial design of products and processes along with the implementation of sustainable manufacturing strategies to "optimize the tota
Matéria (Rio de Janeiro). Publicado em: 2010
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9. Estudo da influência de pré-tratamentos de dois resíduos lignocelulósicos (bagaço do pedúnculo de caju e casca de coco) utilizados como substrato na indução à síntese de enzimas celulolíticas
Nowadays generation ethanol second, that t is obtained from fermentation of sugars of hydrolyses of cellulose, is gaining attention worldwide as a viable alternative to petroleum mainly for being a renewable resource. The increase of first generation ethanol production i.e. that obtained from sugar-cane molasses could lead to a reduction of lands sustainable
Publicado em: 2010
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10. Purificação parcial e caracterização da xilanase produzida por Penicillium expansum / Partial purirification and characterization of xylanase produced by Penicillium expansum
O Penicillium expansum é um fungo filamentoso produtor de xilanase extracelular. Uma xilanase extracelular foi encontrada como a principal proteína na cultura filtrada de P. expansum quando cultivado em farelo de trigo 0,3 %. Em contraste com outros microrganismos, não foi encontrada multiplicidade de xilanase de P. expansum sob as condições usadas. Com
Publicado em: 2002
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11. Estudo do sistema ligninolitico produzido por fungos sob diferentes condições de oxigenação
The ligninolytic system produced by fungi is currently of great interest because it has many environmental applications. Ligninolytic enzymes can be used for the treatment lignocellulosic wastes, biopulping, effluent treatment, etc., and one able to degrade a variety of organic pollutants. In the present work a study was made of the ligninolytic system of fi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/02/1997