Characterization Physical Chemistry
Mostrando 13-24 de 30 artigos, teses e dissertações.
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13. Caracterização quimica, perfil sensorial e aceitabilidade de novos varietais de banana (Musa ssp) resistentes a Sigatoka-Negra / Characterization chemistry, sensory profile and acceptante the news varietais banana (Musa ssp) resistents Sigatoka Negra
O presente estudo teve por objetivo determinar o perfil sensorial, o perfil físico-químico e a aceitação de consumidores paulistas a varietais de banana tradicionalmente consumidos no Brasil, e varietais alternativos resistentes à Sigatoka-Negra. Oito varietais foram estudados: quatro resistentes à Sigatoka-Negra, Pacovan Ken, Preciosa, Thap Maeo e Cai
Publicado em: 2009
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14. ESTUDO DA INTENSIDADE DE CREPITAÇÃO DE MINÉRIOS GRANULADOS DE MANGANÊS DO BRASIL
A common problem in the production of ferromanganese alloys is the lack of knowledge about the mineralogical and metallurgical properties of the manganese lump ores. An important quality parameter of the lump ores is the decrepitation, wich has not been studied adequately yet. This work presents a physical, chemical and mineralogical characterization of the
Publicado em: 2008
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15. Aspectos quÃmicos do estudo interdisciplinar (quÃmica-agronomia-farmacologia) de Amburana cearensis A.C. Smith / Chemical aspects of the investigations to interdisciplinar (chemistry-agronomy-pharmacology)de Amburana cearensis A. C. Smith
Amburana cearensis A.C. Smith is a typical tree of the northeastern Brazil flora designated âcaatingaâ. It is popularly known either as âimburana-de-cheiroâ or âcumaruâ and characterized by its red-gray bark of peculiar and pleasant smell due to coumarin. Despite A. cearensis relevant economical (particularly for carpentry and perfumery) and medicinal
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/08/2007
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16. Qualidade e atividade antioxidante total de pedÃnculos de clones comerciais de cajueiro anÃo precoce / Quality and activity total antioxidant capacity of penduncles of commercial grain stalks of clones of dwarf cashew apple tree.
Cashew has big importance in Brazilian culture of fruits, principally in Northwest region, presenting very expressive social and economic activity. Accordingly to some studies cashew apple has a high vitamin C, carotenoids and phenolics compounds contents. More than vitaminic potential, these compounds have antioxidant potential to cashew pulps. This work ai
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/08/2007
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17. Characterization of commercial ceramic adsorbents and its application on naphthenic acids removal of petroleum distillates
The mixture of carboxylic acids present in petroleum oil and directly responsible for its acidity and corrosiveness in liquid phase during the refine process is denominated "naphthenic acids". These acids are also present in distilled fraction of petroleum, causing several problems in final products quality. A possible way to remove the carboxilic acids from
Materials Research. Publicado em: 2007-06
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18. Microfiltração do soro de leite de búfala utilizando membrana cerâmica como alternativa ao processo de pasteurização.
The aim of this work was to obtain buffalo whey from a standard cheese curd production, with the evaluation of their efficiency in relation to the cow milk. The buffalo whey was characterized by nutritional information and microbial aspects. It was compare the efficiency of the microfiltration process of whey with the traditional pasteurization process. To c
Publicado em: 2007
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19. Purification, kinetics and physical-chemistry characterization of periplaneta americana, Tenebrio molitor and Diatraca saccharalis digestive chymotrypsin / Purificação, caracterização físico-químico e cinética das quimotripsinas digestivas de Periplaneta americana, Tenebrio molitor e Diatraea saccharalis.
Chymotrypsins (EC 3.4.21.1) are serine proteases with 245 amino acids disposed in two double ?-barrel domains, being the active site locate between these two domains. The specificity study of endopeptidases was facilitated by the substrate binding site concept that is the active site of these enzymes. However there is not much information about the subsites
Publicado em: 2006
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20. Characterization of the surface of steel-carbon ABNT 1008 coated with organo-silanes by means of electrochemical and physical-chemistry techniques. / Caracterização da superfície do aço-carbono ABNT 1008 revestida com organo-silanos por meio de técnicas eletroquímicas e físico-químicas.
O objetivo deste trabalho foi caracterizar por meio de técnicas eletroquímicas e físicoquímicas o comportamento das camadas de silano aplicadas diretamente sobre as chapas de aço-carbono ABNT 1008 pela técnica de imersão, como uma proteção contra a corrosão. O estudo compreendeu a avaliação do comportamento das monocamadas de BTSE [Bis-1,2-(triet
Publicado em: 2006
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21. Caracterização vibracional e térmica de blendas de LDPE e m-LLDPE / Thermal and vibrational characterization of blends: Blends of low density polyethylene (LDPE) and linear low density polyethylene synthesized with the metallocene catalyst (m-LLDPE)
Blends of low density polyethylene (LDPE) and linear low density polyethylene (LLDPE) are used commercially to improve the final properties of the products and their process, reduce the production cost having as their main segment packing film. The LLDPE used in this work was synthesized with the metallocene catalyst (m-LLDPE), which was projected to offer b
Publicado em: 2005
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22. Characterization physical-chemistry, chemistry and sensorial of fruits and wines cv. Patricia (Vitis labrusca L.) / CaracterizaÃÃo fÃsico-quÃmica, quÃmica e sensorial de frutos e vinhos da cv. PatrÃcia (Vitis labrusca L.)
Um total de 15 kg de uvas da cultivar PatrÃcia (Vitis labrusca L.), produzidas em um parreiral de 08 anos, plantado em uma Ãrea de 05 ha e um total de 10 garrafas de 750 mL de vinho tinto seco e 10 garrafas de vinho branco seco, ambos produzidos pela fazenda Juriti, localizada no municÃpio de Primavera do Leste â MT, cuja localizaÃÃo à Latitude 15 3
Publicado em: 2005
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23. Caracterização físico-química e purificação de enzimas amilolíticas de mandioca (Manihot esculenta Crantz) cv. Zolhudinha / Characterization physical-chemistry and purification of amylolytic enzymes from cassava (Manihot esculenta Crantz) cv.Zolhudinha
Cassava (Manihot esculenta Crantz) is a root from a native plant, cultivated in South América, that is hightly perish on the post-harvest time. The mechanisms of the root deterioration are due to enzymatic and oxidative reactions as well as the microbiological attack. In this work were studied roots of Zolhudinha variety, EMBRAPA - IM 158, cultivated in Ama
Publicado em: 2005
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24. FÃsico-quÃmica interfacial de filmes mistos de fosfolipÃdeos e Ãcido Ãsnico
The usnic acid it comes as a yellow pigment, of strong character hidrophobic, being insoluble in water and glicerol, partially soluble in etanol and easily soluble in ether, acetone, benzene and chloroform. Produced by liquens seeking your defense, the acid Ãsnico is in the shaft liquÃnico, where your concentration seems to be related with the integral amo
Publicado em: 2004