Volatile Composites
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. Weathering Resistance of Waterborne Polyurethane Coatings Reinforced with Silica from Rice Husk Ash
Abstract: Waterborne polyurethanes (WPUs) are interesting materials for coatings when compared to solvent-based polyurethanes, once that reducing the concentration of volatile organic compounds that are harmful for human health and the environment. However, the WPU has low weathering resistance. In order to improve this behavior among others properties, ino
An. Acad. Bras. Ciênc.. Publicado em: 25/11/2019
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2. Desenvolvimento e estudo físico-químico de compósitos de nanotubos de carbono / Physical chemical study and development of carbon nanotubes composites
This thesis presents for the first time nitrogen-cup-stacked carbon nanotubes with hydrophilic and semiconducting properties synthesized by alcohol precursor. The hybrid carbon fiber/carbon nanotubes composite have three-dimensional geometry and nanostructure. The material was prepared via fixed-bed chemical vapor deposition reactor. In this process nitrogen
Publicado em: 2010
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3. Efeito do processamento sobre o perfil sensorial e os constituintes volÃteis do suco de acerola (Malpighia glabra L.) / Effect of the processing on the sensorial profile and the volatile profile of acerola plain juice due (Malpighia glabra L.)
Neste trabalho foram monitoradas as alteraÃÃes no perfil sensorial e no perfil de compostos volÃteis do suco de acerola integral durante o seu processamento. Inicialmente foi determinado o perfil de volÃteis do suco de acerola in natura, identificando os compostos de maior importÃncia odorÃfera, atravÃs da tÃcnica OSME de CG-olfatometria. Em seguida,
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/08/2007
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4. Effects of the essential oil from Eucalyptus globulus Labill on aflatoxin producer species / Efeito do óleo essencial de Eucalyptus globulus sobre espécies produtoras de aflatoxinas
Literature describes some natural plants composites that are used to preserve food and to control fungi and bacteria development in plants, grains, cereals and derivatives. The objective of this research was evaluate the effect in vitro of the Eucalyptus globulus essential oil and its major component over mycelial growth and aflatoxin production by Aspergill
Publicado em: 2007
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5. Extração de oleos volateis e outros compostos com CO2 supercritico : desenvolvimento de uma metodologia de aumento de escala a partir da modelagem matematica do processo e avaliação dos extratos obtidos / Extration of volateis oils and other composites with Co2 supercriticize : development of a methodology of increase of scale from the matematica modeling of the process and evaluation of gotten extracts
The recovery of extracts from vegetable raw materials with supercritical technology was studied, in order to optimize the process and quality of the products. Three plants were submitted to extraction processes with supercritical carbon dioxide: clove, spiked pepper and vetiver. The yields and compositions of the products obtained by supecritical fluid extra
Publicado em: 2005
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6. Important volateis composites for the aroma of jenipapo (American Genipa L.) e murici (crassifolia Byrsonima L. RICH). / Compostos volateis importantes para o aroma de jenipapo (Genipa americana L.) e murici (Byrsonima crassifolia L. RICH).
The volatile compounds are responsible for the characteristic flavor of food. They are present in a wide interval of concentration, possessing varied chemical structure, beyond of being, generally heating labil. Usually the flavour of a product is constituted by hundreds of volatile compounds. However, only some compounds efftectivelly contribute to the over
Publicado em: 2004
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7. Compostos de volateis e qualidade de sabor da cachaça. / Volatile composites and quality of flavor of cachaça.
A cachaça é a bebida mais consumida no Brasil, com uma produção anual de 1,3 bilhão de litros. Uma boa cachaça, além de atender as exigências legais com relação à sua composição, deve também apresentar qualidade sensorial capaz de satisfazer ou mesmo ultrapassar as expectativas de seus consumidores. Os compostos voláteis como álcoois superior
Publicado em: 2004