Cellulose Industry
Mostrando 13-24 de 68 artigos, teses e dissertações.
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13. Obtenção e propriedades de toruleno da levedura Rhodotorula glutinis / Obtaining and properties of torulene from Rhodotorula glutinis yeast
Carotenoids are natural colorants, some of which are precursors of vitamin A. Since the past decade, an important role in reducing the risk of various degenerative diseases was attributed to these compounds. With these vital functions, the search for sources has intensified worldwide. The biotechnological production of specific carotenoids, using bacteria, f
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/11/2011
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14. Caracterização cromatográfica de compostos orgânicos presentes nos resíduos sólidos provenientes de indústria de reciclagem de papel e sua aplicação na produção de briquetes de carvão vegetal
Recycling of paper in industrial scale has become an established practice worldwide. In this work, organic compositions of three different kinds of sludge generated in recycle paper industry were studied, and the incorporation of one of those sludge in briket was also investigated. The characterization of organic compounds in sludge samples and briket was pe
Química Nova. Publicado em: 2011-09
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15. RepercussÃes EconÃmicas das ContrataÃÃes do FNE no Setor Agroindustrial do Nordeste, sob a Ãtica da Matriz de Insumo-Produto do Nordeste (1989-2008) / Economical Repercussions of FNE Financing Contracts in the Agro Industry Sector Throw the View of the Northeast Input-Output Matrix(1989 to 2008)
Evaluates the economical repercussions of FNE financing contracts in the agro industry sector during the period of 1989 to 2008, innovating, in relation to traditional assays, as it changes the focus analysis of the Programâs sphere to the scope of the characteristically activities of the sector. For doing so, it has been used as a tool for impact measureme
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/08/2010
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16. Análise dos fatores determinantes da internacionalização e desempenho financeiro das empresas brasileiras de capital aberto: a contribuição da visão baseada em recursos (RBV)
Brazil has a significant number of enterprises in all business segments such as: car-industry, market share, consumer goods, electric-electronics, energy, construction, digital industry, mining, paper and cellulose, farming, chemistry, petrochemistry, fabric industry, transport and so on. As we know, all of these companies are inserted into the capital marke
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/06/2010
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17. Potencial da madeira Eucalyptus benthamii Maiden et Cambage visando à produção de celulose Kraft / Potential of Eucalyptus benthamii Maiden et Cambage wood for kraft pulp production
The purpose of this study was to evaluate the quality of Eucalyptus benthamii wood for kraft pulp production. Probably the most planted Eucalyptus clone in Brazil, a hybrid of Eucalyptus urophylla x Eucalyptus grandis, was also analyzed for comparison purposes. The wood characteristics analyzed were the basic density and chemical composition. Laboratory pulp
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/02/2010
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18. Compostagem pelo método de aeração passiva: uma solução sustentável para os resíduos sólidos orgânicos da indústria de celulose e papel / Composting a sustainable solution for the organic waste from pulp and paper industry: method of passive aeration
O presente trabalho, na área das Ciências Ambientais, estudou a compostagem de resíduos sólidos provenientes da indústria de celulose e papel. Partindo-se da hipótese que a compostagem é resultado da ação de microorganismos e a aeração é um dos fatores principais para o desenvolvimento de suas atividades, o objetivo deste trabalho foi verificar q
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/02/2010
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19. Seed lipases: sources, applications and properties - a review
This paper provides an overview regarding the main aspects of seed lipases, such as the reactions catalyzed, physiological functions, specificities, sources and applications. Lipases are ubiquitous in nature and are produced by several plants, animals and microorganisms. These enzymes exhibit several very interesting features, such as low cost and easy purif
Brazilian Journal of Chemical Engineering. Publicado em: 2010-03
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20. Avaliação do potencial da casca de Eucalyptus spp. para a produção de bioetanol / Evaluation of the potential use of Eucalyptus spp. bark for bioethanol production
The use of no fossil source for biofuels production has been stimuled in the all world. Proposing a new global scenario related to the energy matrix, together with the environmental conditions, there is the need to search alternative renewable raw materials. In this context, Brazil presents special conditions, considering the lignocellulosic residues from th
Publicado em: 2010
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21. Mutation in the xpsD gene of Xanthomonas axonopodis pv. citri affects cellulose degradation and virulence
The Gram-negative bacterium Xanthomonas axonopodis pv. citri, the causal agent of citrus canker, is a major threat to the citrus industry worldwide. Although this is a leaf spot pathogen, it bears genes highly related to degradation of plant cell walls, which are typically found in plant pathogens that cause symptoms of tissue maceration. Little is known on
Genetics and Molecular Biology. Publicado em: 18/12/2009
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22. Identification of defluidization region in a gas-solid fluidized bed using a method based on pressure fluctuation measurements
Industrial applications that involve fluidized bed operations must prevent the undesirable phenomenon of partial or complete bed defluidization. Defluidization can be avoided by increasing the gas velocity and/or, in some cases, changing the solid feed conditions in the system, provided that the changes in the hydrodynamics of the flow are detected early eno
Brazilian Journal of Chemical Engineering. Publicado em: 2009-09
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23. Produção de celulases e xilanases por Penicillium echinulatum em processo submerso utilizando biorreatores com agitação mecânica e airlift de circulação interna
Cellulolytic enzymes have many uses, particularly in the food, textile, and paper industries. However, their major potential use is in the hydrolysis of cellulose a component of lignocellulosic residues for ethanol fuel production. Among the cellulase-producing microorganisms, mutants of the Trichoderma genus are the most studied and most widely used in the
Publicado em: 2009
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24. Selection of fungi able to hydrolyze bagasse sugar cane pre-treated / Seleção de fungos capazes de hidrolisar bagaço de cana-de-açúcar pré-tratado
The bagasse from sugar cane, a waste generated during the production of sugar, is composed primarily of cellulose (41 - 44%), hemicellulose (25 - 27%) and lignin (20 - 22%), about two thirds of energy in existing sugar cane is contained in the bagasse and straw. Several processes using bagasse surplus, but mainly for energy production. However, due to the la
Publicado em: 2009