Industrial Biochemistry
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. Production and characterization of a biosurfactant produced by Streptomyces sp. DPUA 1559 isolated from lichens of the Amazon region
Surfactants are amphipathic compounds containing both hydrophilic and hydrophobic groups, capable to lower the surface or interfacial tension. Considering the advantages of the use of biosurfactants produced by microorganisms, the aim of this paper was to develop and characterize a biosurfactant produced by Streptomyces sp. DPUA1559 isolated from lichens of
Braz J Med Biol Res. Publicado em: 11/12/2017
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2. Seasonality and chemical elicitation of defense oleoresin production in field-grown slash pine under subtropical climate
Oleoresin is a key defense strategy of advanced gymnosperms, based on the combination of a complex anatomical structure of resin ducts and elaborate terpene biochemistry. Given the vast array of oleoresin economic applications in the chemical, pharmaceutical, agrochemical, and biofuel industries, translating factors that regulate terpene biosynthesis into hi
Theor. Exp. Plant Physiol.. Publicado em: 2013
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3. Biotechnological production of citric acid
This work provides a review about the biotechnological production of citric acid starting from the physicochemical properties and industrial applications, mainly in the food and pharmaceutical sectors. Several factors affecting citric acid fermentation are discussed, including carbon source, nitrogen and phosphate limitations, pH of culture medium, aeration,
Brazilian Journal of Microbiology. Publicado em: 2010-12
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4. AVALIAÇÃO TOXICOLÓGICA DE ORGANOCALCOGÊNIOS EM ERITRÓCITOS HUMANOS / TOXICOLOGICAL EVALUATION OF ORGANOCHALCOGENS IN HUMAN ERYTHROCYTES
The interest in organochalcogen chemistry, biochemistry and pharmacology has increased in the last two decades mainly due to the fact that a variety of organochalcogen compounds possess biological activity and due the use of these compounds in industrial applications. However, literature data showed that these compounds present pro-oxidant properties, causin
Publicado em: 2009
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5. Caracterização de mutantes de Streptomyces clavuligerus ATCC 27064 obtidos por aplicação de radiação UV e tratamento químico
The clavulanic acid is a powerful inhibitor of the beta-lactamases produced by bacterias resistants to penicillin and cefalosporin. This acid is produced industrially by strains of Streptomyces clavuligerus in complex medium whose carbon and nitrogen source are supplied by inexpensive substances that provide high production. The clavulanic acid has a high af
Publicado em: 2008
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6. Metaproteomic and biochemistry hydrocarbons and heavy metals-contaminated soils / Metaproteomica e bioquimica de solos contaminados por hidrocarbonetos e metais pesados
Hydrocarbons, heavy metals and agricultural defensives are high risk pollutants to human health. These pollutants are constantly introduced into the environment as a result of petrochemical, industrial, agricultural activities and our modern life style, requiring remediation processes that are used to their complete elimination. Bioremediation is a process c
Publicado em: 2008
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7. De Svante Arrhenius ao peagâmetro digital: 100 anos de medida de acidez
This work describes the establishment of the concept of pH and the evolution of its measurement. The origin of the pH definition can be found in the development of the chemistry of aqueous solutions during the XIXth century. The electrolytic dissociation theory by Svante Arrhenius played a central role. After the proposal of the pH scale by Sörensen, many y
Química Nova. Publicado em: 2007-02
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8. Níveis séricos de enzimas de função hepática em frangos de corte de criação industrial clinicamente saudáveis
The values for the main hepatic enzymes included in the profiles of screen clinical biochemistry, alanine-aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (FA), lactate desidrogenase (LDH) and gamaglutamiltransferase (GGT), in samples of serum of broiler chickens in industrial system, clinically healthy, starting from the sevent
Arquivo Brasileiro de Medicina Veterinária e Zootecnia. Publicado em: 2006-08
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9. Different procedures for yeast stock collection; phenotype and genotype diversity study / Diferentes processos de armazenamento de leveduras: estudos sobre a variabilidade fenotipica e genotipica
The maintenance of microorganisms is useful to preserve microbial species in clinical, technical and research laboratories. Different methods to yeast stocking are available in order to obtain long time viability and stability of cell properties. The best methods to store microorganisms need to provide the cell survival as well as purity and stability of the
Publicado em: 2006
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10. Estabilidade oxidativa do colesterol em ovo integral em pó e em macarrão contendo ovos medida através do 7-cetocolesterol livre / Cholesterol oxidative stability in whole egg powder and pasta with eggs measured by free 7-ketocholesterol
O ovo é importante como alimento e matéria-prima industrial. O ovo é rico em colesterol que, por sua vez, está sujeito à oxidação, formando-se óxidos tóxicos. O presente trabalho teve como objetivos, a avaliação da formação do 7-cetocolesterol livre em ovo integral em pó e em macarrão contendo ovos, e a verificação da estabilidade oxidativa
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/04/2004
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11. Análise da resposta antioxidativa de células de Nicotiana tabacum cv BY-2 submetidas ao cádmio. / Antioxidant response of by-2 Nicotiana tabacum cells to cadmium stress.
The contamination of environments by heavy metal pollution, mainly by cádmium (Cd), considered one of the more toxic, is generated by mining and industrial activities, and sewage sludge and phosphated fertilizers used in agriculture. The latter contains Cd in its composition and with continuous agricultural utilization an increase in the heavy metals levels
Publicado em: 2004
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12. Atividade invertásica de células intactas de levedura (Saccharomyces cerevisiae) obtidas por cultivo contínuo / Invertase activity of intact yeast cells (Saccharomyces cerevisiae) attained form continuos culture
Mediu-se a atividade invertásica de células intactas de levedura (S. cerevisiae) cultivadas por processo contínuo em meio preparado a partir de melaço de cana-de-açúcar, nas seguintes condições: a) aerobiose, com adição de nutrientes ao meio D(h-1): 0,10 e 0,24 Φ (l/l.min): 1 e 2 N(min-1): 500 e 700 b) aerobiose, sem adição de nutrientes ao
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/04/1986