Physico Chemical Composition
Mostrando 25-36 de 84 artigos, teses e dissertações.
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25. Qualidade dos méis produzidos por Melipona fasciculata Smith da região do cerrado maranhense
The honey of Melipona fasciculata is few known in terms of composition, and therefore generally associated with the characteristics of the honey of Apis mellifera. This study contributes to the knowledge of the physico-chemical characteristics of honey of M. fasciculata of the municipalities of Barra do Corda, Jenipapo dos Vieiras, Fernando Falcão, Carolina
Química Nova. Publicado em: 2012
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26. Characterization of produced water in the oil industry for disposal and optimization of oil water separation. / Caracterização de água produzida na indústria de petróleo para fins de descarte e otimização do processo de separação óleo/água
The oil industry has several segments that can impact the environment. Among these, produced water which has been highlight in the environmental problem because of the great volume generated and its toxic composition. Those waters are the major source of waste in the oil industry. The composition of the produced water is strongly dependent on the production
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/03/2011
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27. Comparison between physico-chemical properties of the technical Cashew Nut Shell Liquid (CNSL) and those natural extracted from solvent and pressing
Cashew nut shell liquid (CNSL) is a by-product of the cashew kernel industry, applied mainly to produce polymeric derivatives. The technical CNSL (CNSLT) was obtained industrially, extracted by roasting the cashew nut shells at temperatures between 180 and 200 ºC. Two methods were used to produce natural CNSL. For the extraction of CNSLNP, the cashew nut sh
Polímeros. Publicado em: 13/05/2011
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28. Caracterização físico-química e sensorial dos vinhos espumantes da serra gaúcha
A influência da cultivar e da época de colheita na composição físico-química e na qualidade sensorial dos espumantes da Serra Gaúcha, Rio Grande do Sul, elaborados pelo método Champenoise nas safras 2006 e 2007, foi avaliada. As cultivares utilizadas foram Riesling Itálico, Chardonnay e Pinot Noir. As uvas foram colhidas em duas épocas distintas: u
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/12/2010
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29. Distribution of prokaryotic organisms in a tropical estuary influenced by sugar cane agriculture in northeast Brazil
In a joint Brazilian-German case study, distribution patterns of microorganisms were compared with environmental variables in the tropical coastal Manguaba lagoon in northeast Brazil, which is situated downstream of several sugar cane processing plants . 16S rDNA and 16S rRNA single strand conformation polymorphism (SSCP) gene fingerprinting were used to fol
Brazilian Journal of Microbiology. Publicado em: 2010-12
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30. O ÍNDICE DE SUSTENTABILIDADE AMBIENTAL DO USO DA ÁGUA (ISA) COMO FERRAMENTA DE CONTRIBUIÇÃO ÀS POLITICAS PÚBLICAS DE DESENVOLVIMENTO E CONSERVAÇÃO NA BACIA DO RIO BACANGA, SÃO LUÍS/ MA. / INDEX FOR ENVIRONMENTAL SUSTAINABILITY OF WATER USE (ISA) AS A TOOL FOR CONTRIBUTION TO THE POLICIES PUBLIC DEVELOPMENT AND CONSERVATION IN BACANGA RIVER BASIN, SÃO LUIS / MA.
A hydrographic basin is a complex environmental system, resulting from the interrelations between the physical-natural and socioeconomic subsystems. Its identity as the unifying of environmental processes and human interference is leading to its adoption as a research unit. It allows from the analysis of the physical-chemical, biological and socioeconomic fa
Publicado em: 2010
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31. Conservação refrigerada de lima ácida "Tahiti" em combinação com atmosfera modificada, ácido giberélico e permanganato de potássio / Cold storage Tahiti lime in combination with modified atmosphere, gibberellic acid and potassium permanganate
Although Brazil is the largest producer and exporter of Tahitilime, actually, exports only 5% of total production. This is, in part, because of a lack of quality of these limes, characterized by loss of green skin colour after harvest. The purpose of this research was to evaluate the efficiency of modified atmosphere, gibberellic acid (GA) and potassium perm
Publicado em: 2010
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32. Bee pollen of Alagoas State : physico-chemical composition, botanical origin and antioxidant activity. / Pólen apícola do estado de Alagoas : composição físico-química, origem botânica e atividade antioxidante.
Beekeeping is an activity known worldwide. In Brazil, it has found favorable conditions for its establishment. In the State of Alagoas, where it is still a practicing of beekeeping craft, require official data on the quality of their products to become more professional. Among the bee products, bee pollen resulting from the agglutination of flower pollen and
Publicado em: 2009
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33. Avaliação da biodegradação de matrizes porosas à base de hidroxiapatita para aplicação como fontes radioativas em braquiterapia
Porous ceramic materials based on calcium phosphate compounds (CPC) have been studied aiming at different biomedical applications such as implants, drug delivery systems and radioactive sources for brachytherapy. Two kinds of hydroxyapatite (HAp) powders and their ceramic bodies were characterized by a combination of different techniques (XRF, BET method, SE
Química Nova. Publicado em: 2009
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34. Mel de abelhas nativas e africanizadas do estado de Alagoas : composição química, segurança microbiológica e atividade terapêutica. / Honey of beens native and africanized state of Alagoas State : chemical composition,security microbiological and activity therapy.
The rational development of bees is one of the most promising agricultural activities, since it is essentially self-sustaining family and therefore helps to maintain and restore the environment, through their role in pollination, and guarantee income to the producer who employs his family on it. Honey is the main product of this activity, being generated by
Publicado em: 2009
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35. Chemical, physical-chemical and sensory characteristics of fermented alcoholic beverage from lychee (Litchi chinensis Sonn) / CaracterÃsticas quÃmicas, fÃsico-quimicas e sensoriais de bebidas fermentadas de lichia (Litchi chinensis Sonn)
The lychee (Litchi chinensis Sonn) is a fruit that has a high nutritional value, but due to their perishable nature and seasonality of production, the excess must be processed quickly to avoid losses. Thus, as an alternative to prevent waste arising from the low shelf-life of this fruit, and add value to it, we studied the preparation of fermented beverage o
Publicado em: 2009
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36. Biodiesel: visão crítica do status atual e perspectivas na academia e na indústria
This article presents a bibliographic review of research carried out on different alternative processes for biodiesel production. The supercritical and subcritical (non catalytic) reaction conditions, the use of solid basic, solid acid and other heterogeneous catalysts, including the use of immobilized enzymes and whole-cell catalysts are also critically com
Quím. Nova. Publicado em: 2009