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Análise de arranjos para extração de óleos vegetais e suprimento de usina de biodiesel AgEcon
Sartori, Marco Antonio; Perez, Ronaldo; da Silva Junior, Aziz Galvao; Machado, Silvia Regina Sartori; Santos, Manoela Maciel de Souza; Miranda, Carlos Alberto de Castro.
This study aimed at the technical-economical evaluation of implanting some vegetal-oil extraction units in order to insert the family agriculture into bio-diesel production chain. Three project models (arrangements) for vegetal-oil extraction units at different sizes were proposed, using extraction by pressing and mixed extraction (extracting by either pressing or solvent) and different raw materials (castor-oil and soybean). For the size analysis, the oil production scales between 50/60 tons/day were used with real market data concerning investments, inputs prices of the process, raw materials and vegetal oil. For the economic analyses, the software BioSoft was used. The BioSoft is a program for supporting the decision-making process, which was developed...
Tipo: Journal Article Palavras-chave: Vegetal oil; Extraction; Viability; Crop Production/Industries; L25; D81; L69..
Ano: 2009 URL: http://purl.umn.edu/60807
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Production and stability studies of the bioemulsifier obtained from a new strain of Candida glabrata UCP 1002 Electron. J. Biotechnol.
Asfora Sarubbo,Leonie; Moura de Luna,Juliana; de Campos-Takaki,Galba Maria.
Evaluation of both tenso-active and emulsifying activities indicated that a biosurfactant was produced by the newly isolated and promising strain Candida glabrata isolated from mangrove sediments. The extracellular water-soluble emulsifying agent was isolated and identified as a heteropolymer. The maximum of bioemulsifier production was observed when the strain was grown on soluble and insoluble substrates cotton seed oil plus glucose, reaching values of 10.0 g/l after 144 hrs at 200 rpm. The cell-free culture broth containing the examined agent lowered the surface tension of the medium to 31 mN/m. Stable and compact emulsions with emulsifying activity of 75% of cotton seed oil were detected. The emulsification capacity remained practically unaltered...
Tipo: Journal article Palavras-chave: Biosurfactant; Candida; Emulsifier; Fermentation; Glucose; Vegetal oil.
Ano: 2006 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582006000400008
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