Residue Biodegradable
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Tadalafil-loaded PLGA microspheres for pulmonary administration: preparation and evaluation
Tadalafil, a long-acting PED-5 inhibitor, is commonly used for the treatment of pulmonary arterial hypertension (PAH). However, its efficacy and clinical application are severely limited by the poor water solubility, low bioavailability and a series adverse effects (e.g. headaches, indigestion). In this study, tadalafil was prepared and loaded into biodegrad
Braz. J. Pharm. Sci.. Publicado em: 20/12/2019
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2. Nanocellulose Produced from Rice Hulls and its Effect on the Properties of Biodegradable Starch Films
Rice hull is a residue from agro-industry that can be used to produce nanocellulose. We produced nanocellulose from rice hulls through bleaching (with a 5% NaOH solution followed by a peracetic acid solution) and acid hydrolysis at a mild temperature (45ºC) followed by ultrasonication. We investigated the microstructure, crystallinity and thermal stability
Mat. Res.. Publicado em: 12/02/2016
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3. Evaluation of the influence of the use of waste from the processing of rice in physicochemical properties and biodegradability of PHB in composites
The high calorific value of rice husks has elevated its reuse as an energy source; however, the burning of these shells generates a waste ash from rice husk ash (RHA), which makes its disposal a concern. Despite advances, biodegradable polymers are not yet able to compete with those of traditional thermoplastics, which have lower production cost and higher p
Polímeros. Publicado em: 2014-12
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4. Elaboração de filmes biodegradáveis a partir do resíduo da extração do pigmento de Cúrcuma / Development of biodegradable films from the residue of the extraction of the pigment from turmeric.
This work aimed to study the potential of the bran residue obtained from the extraction of the pigment from turmeric (Curcuma longa L.) in the preparation of biodegradable films. The extraction of the turmeric dye was conducted by Soxhlet procedure in orer to simulate the industrial process. Two types of solvents were employed ethanol isopropanol (1:1) and m
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/10/2012
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5. Produção de biogás a partir de glicerol oriundo de biodiesel / Biogas production from glycerol generated on biodiesel industry
The Brazilian legislation demands the use of biodiesel mixed with diesel in an increasing rate. This raise on biodiesel production implies also on an increase on generation of glycerol, which is a liquid or semi-solid waste with high concentration of salts (approximately 46.1 g\ CL POT.-\ /L) and organic matter (1260 gCOD/L in average). Despite being widely
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/04/2011
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6. Concreto celular polimérico: influência na adição de resíduo de poliéster insaturado termofixo
This work addresses the production of lightweight concrete building elements, such as plates, prefabricated slabs for pre-molded and panels of fencing, presenting a singular concrete: the Lightweight Concrete, with special properties such low density and good strength, by means of the joint use of industrial waste of thermosetting unsaturated polyesters and
Publicado em: 2009
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7. Utilização de resíduos industriais como substratos de baixo custo para a produção de biossurfactante por Candida sphaerica
Surfactants are amphipathic agents with application in different industries, such as the petroleum, food and pharmaceutic. Many kinds of chemical surfactants are being used nowadays, although the development of alternative products, with biodegradable nature and lower toxicity, as the so called biosurfactants, metabolites from microorganisms, is a sound stra
Publicado em: 2007
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8. Biodegradation of a poly (ε-caprolactone) and adipate modified corn starch blend, with different granulometries, incubated in two soil types / Biodegradação da blenda poli (ε-caprolactona) e amido de milho adipatado, em diferentes granulometrias, incubada em dois solos
A constatação do crescente acúmulo de lixo, proveniente de plásticos sintéticos que agridem o ecossistema, principalmente o solo, devido ao longo tempo de permanência no ambiente, levou à idéia de desenvolvimento de plásticos biodegradáveis para substituição parcial dos plásticos de origem petroquímica. No presente trabalho, conduzido em labora
Publicado em: 2007
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9. Potencial de minimização do material biodegradavel de alimentação contido no residuo solido domiciliar em municipios da Região Metropolitana de Campinas / Minimization potencial of food biodegradable material contained in the domiciliary solid waste in cities of the metropolitan region of Campinas
An increase of the amount and quality of the discarded material has arisen as a result of the urban growth and the change of consumption standards. With the production of material each day more complex and the composition of the waste being frequent1y modified, the treatment to this problem becomes more difficult. The worldwide trend, in relation to the prob
Publicado em: 2004