1000 resultados para produto sólido
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The aim of this study is to evaluate the effi ciency of oregano, sage, moringa and rosemary as natural antioxidants and propyl gallate as artifi cial antioxidant used in “stuffed food” made with CMS of tilapia (minced fi sh) and stored frozen for 120 days. Protein, fat, moisture and ashes determination, microbiological analysis and sensory evaluations were conducted in the beginning and the end of storage period. TBARS, BNVT, pH and psychrotrophic microorganism count were determined periodically. The antioxidants interfered in pH (6.17 and 6.55) and TBARS values during 120 days under freezing (-18o C). The lowest TBA values were found for oregano (0.158 mg de MDA. kg-1) and sage (0.186 mg de MDA.kg-1). The stuffed food made with CMS of tilapia, without antioxidant, had the most oxidation, and sage and moringa were not good source of antioxidant. BNVT values (11.41 – 12.35 mgN.100g-1) were not altered. The lowest pH value was found for the product with sage (6.20), but similar to the moringa and propyl gallate, while oregano and rosemary showed the highest values (6.63 and 6.29), at 5 days of storage. Microbiological analyses were in accordance with Brazilian legislation. Sensory evaluation indicated that the panelists preferred the formulations made with oregano and propyl gallate. The results showed that it is feasible to elaborate stuffed food made with CMS of tilapia as an alternative for the fi shery´s consumption, and sage was the most effi cient natural antioxidant among those tested in this study.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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É descrita a invenção de um método de modificação da superfície 5 de ligas de titânio empregando a oxidação anódica em ligas de Ti- 30Ta e Ti-7,5Mo para a obtenção de nanotubos perpendiculares ao substrato com diâmetro de 80-120 nm e comprimento de 100 nm-500 nm.
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Pós-graduação em Química - IQ
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Wood is a renewable material and has unique characteristics that stem from its orthotropic properties. The objective of this study was to develop and implement an informational Selection of Materials and Manufacturing Processes appropriate to the activity of Product Design - Woods. Composed of a Digital Information System, distributed, and an ordered collection of samples. The design of a product, carries with it the choice of material, and the choice of a manufacturing process. Information on materials and manufacturing processes are available with different content, media and interfaces. However, such information is not systematized so that they can be recovered, as the need for the designer, especially on wood. This set of methods is called the Selection of Materials and Manufacturing Processes. It is hoped through this study that the methodologies for SMPF are employed by product designers, architects and engineers in Brazil.
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Educational games are responsible for part of the information assimilated by the child, because these games respect the individual learning time, enabling experimentation and, consequently, being an accessory to retain the acquired knowledge spontaneously. However, the analogy between stimulus and reception/result is not always the expected. On the one hand, there are the pedagogues, bearing the knowledge necessary to the children’s development. On the other hand, are the children, who cannot completely assimilate the concept, commonly because of lack of planning on the product. After all, the children become not interested in the game, without developing the expected cognitive abilities planned for the product. Whereas the importance of the games on children’s development, this work aimed to analyze and select educational games presented on the preschool, based on the language exploration from the Design’s knowledge and skills. Specifically, the research intends to investigate games targeted to stimulate geometric concepts, and so, to describe parameters that must be observed during the product planning.
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This article approaches possibilities and strategies of building to development of fashion product. It investigates the application of different constructive resources of textile materials of same composition and trim, establishing for this parameters of formal similarity. The conception of products process is conducted by three-dimensional expression, which allows the steps for creating and delivering happen simultaneously. Three-dimensional modeling techniques enable the buildings that are structured by the following features investigated: intervention in the textile surface, insertion of independent elements, and different confection resolutions. The results instigate reflection about the processes involved.
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This study presents an analysis of the discomfort in the use of a cheese grater. Data was collected using a protocol of perceived discomfort and the results show that the subjects with no experience in cooking reported more experiences of discomfort and higher intensity than the subjects with experience in cooking.
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Pós-graduação em Química - IQ
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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The activation of aluminum surface has the most various purposes as for example the search for the surface activation mechanism and the corrosion products by mercury ions. The objective of this work is to study the reactivity of the surface of aluminum metal when activated by mercury ions (Hg2+), with the consequent formation of an Al-Hg amalgam. Results demonstrate that the kinetics of the reaction, by measuring the mass change with time of the corrosion product formed between Al and Hg, and analysis by infrared spectroscopy (IR) that the product of the reaction between the amalgam, located on the surface, and the atmospheric oxygen is Al2O3 (aluminum hydroxide). The results also indicate that the kinetics of the reaction between the amalgam (Hg-Al) and atmospheric oxygen is of first order and reach a region where there is no more formation of product
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)