Cerca
Items 81-90 di 130
Desenvolvimento de compósitos de POLI (acrilonitrila-CO-butadieno-CO-estireno) / microesferas ocas de vidro para utilização na indústria automobilística
(2015-11-20)
The application of polymeric materials in automobiles have increased due to weight reduction and the large number of possible applications of these materials. The poly (acrylonitrile-cobutadiene-co-styrene) (ABS) is widely ...
Obtenção e caracterização de filmes biodegradáveis de gelatina recuperada de resíduo do couro curtido ao cromo (III) com tratamento enzimático
(2017-08-07)
Polymers from non-renewable sources are widely used in the production of packaging and for use in agriculture, in the manufacture of greenhouses, bags for the production of seedlings and films for soil cover. These plastics ...
Reciclagem de PETpc na incorporação da formulação de uma tinta em pó
(2016-11-24)
The Growing use of PET packaging results in high generation of solid waste. Recycling is an alternative For a polymeric material this reuse. This study aims to evaluate the influence of incorporation of 2.5, 5 and 7.5% ...
Pré-tratamento de biomassa lignocelulósica por macrofungos regionais para posterior produção de etanol de segunda geração
(2017-11-30)
With the growing demand for renewable energy sources as alternatives to fossil fuels, the use of lignocellulosic biomass, such as sugarcane bagasse and eucalyptus sawdust, is an alternative for the production of second ...
Análise de resíduos de pesticidas em farinha de trigo integral usando método QuEChERS modificado e determinação por LC-MS/MS
(2015-05-11)
Due to the frequent use of agrochemicals, it is important to control the same. Thereby, instrumental analytical methods, particularly liquid chromatography analyzes, are able to qualitatively and quantitatively evaluate ...
Desenvolvimento de um sistema automático de alimentação controlado pelo pH do meio para produção de celulases por Penicillium echinulatum S1M29 em regime descontínuo alimentado
(2019-11-29)
The production of cellulases is of major interest in order to increase economic viability of second generation ethanol. This complex contains three major enzymes: endoglucanases, exoglucanases and β-glucosidades. Filamentous ...
Produção de 2,3-butanodiol por Klebsiella oxytoca e Enterobacter aerogenes a partir de diferentes fontes de carbono e regime de operação
(2019-06-07)
Different carbon sources have been used in fermentation processes for 2,3-butanediol (2,3- BDO) and acetoin (acetyl methyl carbinol; AMC) production. These substrates can be obtained from agro-industrial by-products, ...
Análise dos fármacos enalapril, metformina, paracetamol, tetraciclina e seus produtos de degradação por UHPLC-MS/MS após processo de tratamento biológico associado a membranas em efluente hospitalar
(2014-07-10)
The hospital effluents has, among other features, the presence of drugs and its possible
degradation products, as well as, a high concentration of microorganisms. Currently,
environmental agencies have been concerned ...
Avaliação da degradação biótica do poli(ácido lático), do polipropileno e suas misturas pela ação de fungos basidiomicetos
(2015-02-20)
Polymeric wastes when intended improperly, associated with its resistance to degradation may promote environmental pollution. Therefore, studies involving the degradation of some polymers are considered as an alternative ...