Cellulose Sulphate
Mostrando 1-12 de 16 artigos, teses e dissertações.
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1. COMPARISON OF REGENERATED CELLULOSE MEMBRANE COAGULATED IN SULPHATE BASED COAGULANT
ABSTRACT Regenerated cellulose properties can be altered and manipulated by various methods and procedures. Coagulation steps in cellulose regeneration process is one of the most crucial step in determining the final properties of the regenerated cellulose products. This study was conducted to investigate the effect of different type of coagulant on the prop
CERNE. Publicado em: 20/05/2019
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2. Production of cellulose-degrading enzyme on sisal and other agro-industrial residues using a new Brazilian actinobacteria strain Streptomyces sp. SLBA-08
Several types of lignocellulosic raw materials including wheat straw, sisal bagasse and sugarcane bagasse have different contents of cellulosic components. In our studies, aimed at isolating cellulose-degrading actinobacteria from Brazilian soils, a promising strain was selected and identified as Streptomyces sp. SLBA-08. This strain was tested for cellulase
Braz. J. Chem. Eng.. Publicado em: 2013-12
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3. Minerals consumption by Acetobacter xylinum on cultivation medium on coconut water
The objective of this work is to verifying the consume of the minerals K, Na, Fe, Mg, P, S-SO4-2,B,N Total Kjedahl (NTK), NO3--N, and NH4+-N in the production of bacterial cellulose by Acetobacter xylinum, according to the medium and the manner of cultivation. The fermentative process was in ripe and green coconut water. K and Na were determined by flame emi
Braz. J. Microbiol.. Publicado em: 05/04/2013
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4. In vitro and in situ activity of carboxymethyl cellulase and glutamate dehydrogenase according to supplementation with different nitrogenous compounds
Two experiments were carried out to evaluate the effect of supplementation with different nitrogenous compounds on the activities of carboxymethil cellulase (CMCase) and glutamate dehydrogenase (GDH). In the first experiment, four treatments were evaluated in vitro: cellulose, cellulose with casein, cellulose with urea, and cellulose with casamino acids. Aft
Revista Brasileira de Zootecnia. Publicado em: 2012-03
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5. Productivity, age and wood quality of Eucalyptus for bleached pulp production / Produtividade, idade e qualidade de madeira de Eucalyptus destinada à produção de polpa celulósica branqueada
Este trabalho teve como objetivo verificar a influência da produtividade e da idade sobre a qualidade da madeira proveniente de clone híbrido de Eucalyptus grandis x Eucalyptus urophylla para produção de polpa celulósica braqueada. Utilizou-se madeira de um único clone proveniente de áreas com elevada produtividade, média de 33 m3 ha-1 ano-1, onde os
Publicado em: 2011
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6. Production, purification and partial characterization of invertase obtained from solid state cultivation of Aspergillus casiellus on soybean substrate / ProduÃÃo, purificaÃÃo e caracterizaÃÃo parcial da invertase obtida por fermentaÃÃo em estado sÃlido de soja com Aspergillus casiellus
The invertase, enzyme found in yeast, above all in the Sacharomyces cerevisiae species, invertebrate, vertebrate, green alga, bacteries, vegetal and fungus, is one of the principal accountable for sucrose hydrolysis to form the inverted syrup, is used by the food industry and pharmacy, in the hydrolyses of rafinose, inulin and gentianose. In the present work
Publicado em: 2009
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7. Utilização do sinal analitico liquido para avaliação de modelos de calibração multivariada atraves do calculo de figuras de merito e de cartas de controle / Utilization of net analyte signal for validation of models of multivariate calibration by using figure of merit and chart control
This study was mainly intended to elaborate the validation of multivariate calibration models based on the determination of figures of merit and multivariate control charts constructed with data from Nimesulide tablets upon near-infrared spectroscopy use. A total of 69 synthetic samples were prepared containing the active principle (Nimesulide) in the range
Publicado em: 2007
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8. Levana Ferromagnetizada: uma matriz de afinidade para purificar lectina de sementes de Cratylia mollis (Cramoll 1)
Levans, fructose polymer, are composed by β-2,6 linkages and can be produced by differents species of plants and bacteria . Applications for levans have been suggested in food industries, pharmaceutics, also in medicine. Ferromagnetic particle in biomedical and industrial areas have been used. Lectins find are ubiquitously distributed in nature, and occ
Publicado em: 2006
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9. Tecnologias avançadas para pré-branqueamento de polpa kraft de eucalipto / Advanced technologies for eucalyptus kraft pulp prebleaching
The EFC bleaching with the current technologies, based on the chlorine dioxide use represents the second greatest cost in the eucalyptus kraft pulp bleaching (US$ 25-30/t), being the wood the first (US$ 40-80/t). On the other hand, the bleaching reagents offer, typically chlorine dioxide, has been a limiting factor for the production increase in many old ind
Publicado em: 2006
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10. Caracterização química de resíduos da produção de biodiesel compostados com adição mineral / Chemical characterization of residues from biodiesel production composted with mineral addiction
The production of biodiesel has in agriculture its base of sustentation. The culture of sugar cane and oleaginous species as castor oil plant after processing to obtain alcohol and vegetal oil, respectively, generates organic residues. These residues when used in agriculture in the compost form make possible the reduction of production costs and increase of
Publicado em: 2006
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11. Estudos bioquimico e farmacologico da peçonha de Bothrops erythromelas
B. elythromelas is a snake found exc1usivelyin the Northeast of Brazil (from Bahia to Ceará). In this Thesis, some of the biochemical and pharmacological characteristics of this venom were examined. B. erythromelas venom possesses coagulant activity as well as proteolytic (caseinolytic), phospholipase and TAME-esterase activities. Practionation of the venom
Publicado em: 1991
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12. Excretion patterns of glycosaminoglycans and glycoproteins in normal human urine
Glycosaminoglycans and glycoproteins in the urine of 100 healthy, active, human subjects were examined by cellulose acetate electrophoresis and salt gradient, ion-exchange, column chromatography. The cetylpyridinium chloride (CPC) turbidity and uronic acid:creatinine ratio was also studied. Fractions were identified by electrophoretic mobility, staining reac