Pulp Extraction Processes
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. Influence of temperature and time during malaxation on fatty acid profile and oxidation of centrifuged avocado oil
Abstract Virgin oil from avocados (Persea americana Mill.) is obtained by mechanical processes after pulp malaxation at temperatures that minimize oxidation and improve separation. The objective of this study was to assess the effect of time (0, 20, 30, 40, 60, 120 and 180 min) and temperature (40 and 50 °C) conditions during pulp malaxation on extraction y
Food Sci. Technol. Publicado em: 22/03/2018
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2. Avaliação do processo SuperBatchTM para produção de polpa celulósica a partir de Bambusa vulgaris / Evaluation of SuperBatch(TM) process for the production of pulp from Bambusa vulgaris
The present study aimed to evaluate and compare the kraft pulping conventional processes and SuperBatchTM for Bambusa vulgaris aiming the production of pulp unbleached (kappa number 58 ± 2). The raw material was characterized with respect to basic density, chemical composition and morphology of fibers, was analyzed an aqueous pre-extraction temperatures of
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/09/2012
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3. Estudo exploratório de extração de celulose a partir de resíduos vegetais do processo produtivo de conserva de palmito (Archontophoenix alexandrae)
No Brasil, tanto o agronegócio quanto a fabricação de celulose trazem resultados relevantes para a economia. Sob uma perspectiva de sustentabilidade, as indústrias beneficiadoras de materiais vegetais geram grande volume de resíduos, os quais podem servir de fonte de celulose, configurando-se numa alternativa atraente para gerar lucros e diminuir impact
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
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4. Caracterização química, avaliação da atividade antioxidante in vitro e in vivo, e identificação dos compostos fenólicos presentes no Pequi (Caryocar brasiliense, Camb.) / Chemical characterization, in vitro and in vivo antioxidant activity evaluation, and identification of the phenolic compounds present in the pequi fruit (Caryocar brasiliense, Camb.)
The oxidative stress produced in live organisms is related to the appearance and/or development of a series of non-transmissible chronic diseases. Phenolic compounds present in vegetables are able to neutralize these substances, thus reducing the risk of development of free radicals associated to pathologies. The aim of this work was to evaluate the antioxid
Publicado em: 2008
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5. Dynamic simulation of the carbon-in-pulp and carbon-in-leach processes
Carbon-in-leach and carbon-in-pulp are continuous processes that use activated carbon in a cascade of large agitated tanks, which have been widely used to recover or concentrate precious metals in gold extraction plants. In the carbon-in-pulp process adsorption occurs after the leaching cascade section of the plant, and in the carbon-in-leach process leachin
Brazilian Journal of Chemical Engineering. Publicado em: 2007-12
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6. Extraction of pequi pulp oil (Caryocar brasiliense): influence of the operational variables / ExtraÃÃo do Ãleo da polpa de pequi (Caryocar brasiliense): influÃncia das variÃveis operacionais
The use of pequi oil in industrial products has led to the study by processes alternative to handmade extraction. The objective is to arrive adequate to its extraction and which warrants the quality of the oil. In this essence, it is necessary to study the influences of the variables on the yield and quality of the extraction of pequi pulp oil. In chapter II
Publicado em: 2007
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7. Influence of the chemical composition of the pulp kraft bleaching by the sequences ODHT(PO)D and ODHT(PO)DP on the process of brightness reversion / Influência da composição química da polpa kraft branqueada pelas seqüências ODHT(PO)D E ODHT(PO)DP no processo de reversão de alvura
In this work a study on the chemical composition of pulps of Kraft cellulose whitened before and after the test of dry reversion was carried out aiming to know the processes of reversion of whiteness. Samples of pulps were analyzed, given by the industry, collected after each one of the stages of whitened through the sequence of ODHT(PO)D. It was also done t
Publicado em: 2005
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8. Pulp production from banana stem. / Produção de polpa celulósica a partir de engaço de bananeira.
The banana stem, grain stalk that supports the banana fruits, is normally discarded after the fruit harvesting, either in the packing house or in the delivering centers, where it is considered a residue due to the great volume generated. For this reason and for being a fibrous material, stem was evaluated for pulp production. The stem in natura presents 93 %
Publicado em: 2001