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Análise dinâmica de sistemas de colheita e manuseio de biomassa para utilização como fonte de energia. Repositório Alice
MANTOVANI, B.H.M.; PEART, R.M.; GIBSON, H..
1983
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Simulacao; Modelos matematicos; Colheita; Sistema; Biomassa; Energia; Palhada; Milho; Cavacos; Madeira; Etanol; Producao; Energy; Corn; Residue; Wood chips; Ethanol; Production; Simulation; Harvest; Biomass.
Ano: 1983 URL: http://www.alice.cnptia.embrapa.br/handle/doc/478747
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Kinetic characteristics of β-cyclodextrin production by cyclodextrin glycosyltransferase from newly isolated Bacillus sp. C26 Electron. J. Biotechnol.
Cheirsilp,Benjamas; Kitcha,Suleeporn; Maneerat,Supasilp.
The kinetic characteristics of β-cyclodextrin production by a cyclodextrin glycosyltransferase (CGTase) produced by Bacillus sp. C26, a new isolate from a soil sample was investigated. Considering highest yield and initial production rate of β-cyclodextrin, among the starches examined, soluble starch, tapioca starch, sago starch, corn starch and rice starch, tapioca starch was the best substrate for this CGTase. The optimum temperature for tapioca starch gelatinization prior to its use as a substrate for β-cyclodextrin production was 65ºC. The yield and initial production rate of β-cyclodextrin increased with increasing starch concentration up to 6% and an enzyme concentration up to 48 U/g-starch. The kinetic parameters...
Tipo: Journal article Palavras-chave: Bacillus subtilis ZK8; Cell adsorption; Jiean- peptide; Response surface methodology; Wood chips.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000400004
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Response surface methodology used for statistical optimization of jiean-peptide production by Bacillus subtilis cells adsorbed on wood chips Electron. J. Biotechnol.
Zhang,Xiaoyong; Zhou,Jinyan; Fu,Wen; Li,Zhidong; Zhong,Juan; Yang,Jie; Xiao,Liang; Tan,Hong.
Response surface methodology (RSM) was used for statistical optimization of jiean-peptide (JAA) production by Bacillus subtilis ZK8 cells adsorbed on wood chips to form a novel fermentation system. The Plackett-Burman design was used in the first step to evaluate the effects of eight factors, including six fermentation medium components and two cell adsorption conditions. Among the variables screened, soybean meal hydrolysate (SMH) and MgSO4·7H2O in the fermentation medium had significanteffects on JAA production. In the second step, the concentrations of SMH and MgSO4·7H2O were further optimized using central composite designs and response surface analysis. The optimized concentration of SMH and MgSO4·7H2O was 24% (v/v) and 0.38% (w/v), respectively,...
Tipo: Journal article Palavras-chave: Bacillus subtilis ZK8; Cell adsorption; Jiean- peptide; Response surface methodology; Wood chips.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000400006
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Torrefaction of eucalyptus wood chips for energy purposes PFB - Pesquisa Florestal Brasileira
Pereira, Matheus Perdigão de Castro Freitas; Costa, Emylle Veloso Santos; Corradi Pereira, Bárbara Luísa; Carvalho, Ana Márcia Macedo Ladeira; Oliveira Carneiro, Angélica de Cássia; Costa, Aylson.
Torrefaction also known as pre-carbonization is heat treatment at low temperatures (200 ºC to 300 °C), applied to lignocellulosic materials with the aim of improving their energetic properties. We developed this study to evaluate the effect of torrefaction temperature on properties of eucalyptus chips. Using a furnace, the eucalyptus chips underwent four heat treatments at temperatures of 150 ºC, 200 ºC, 250 ºC and 300 °C, for ten min. Physical and chemical analyzes of torrefied and in natura chips were carried out. The results were submitted to analysis of variance and when established significant differences, applied Tukey test at 95% significance. Increasing roasting temperature showed higher lignin content and fixed carbon, less equilibrium moisture...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biomass; Thermal treatment; Wood chips.
Ano: 2016 URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1093
Registros recuperados: 4
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