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	Provedor de dados BABT (2) Electron. J. Biotechnol. (1) Autor Zaiat,Marcelo (3) Barboza,Marlei (1) Correa Leite,José Alberto (1) Foresti,Eugenio (1) Lima,Cláudio Antonio Andrade (1) Pelizer,Lúcia Helena (1) Pozzi,Eloisa (1) Pozzi,Eloiza (1) Ribeiro,Rogers (1) Sarti,Arnaldo (1) Mais... Palavra-chave ARDRA (1) ASBBR (1) Anaerobic digestion (1) Batch reactor (1) Biofilm (1) Domestic sewage (1) Endonucleases (1) Fixed-bed reactor (1) Polyurethane foam (1) Rheology (1) Sulfate removal (1) Support medium (1) Volatile fatty acids (1) Xanthan gum (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Journal article (1) Ano 2013 (1) 2012 (1) 2005 (1) País Brazil (2) Chile (1) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Use of volatile fatty acids salts in the production of xanthan gum Electron. J. Biotechnol. Correa Leite,José Alberto; Pozzi,Eloiza; Pelizer,Lúcia Helena; Zaiat,Marcelo; Barboza,Marlei. Background: The aim of this study was the production of xanthan gum from salts of volatile fatty acids, which can be generated in anaerobic processes for the production of hydrogen from organic wastewaters. Xanthan gum was produced with three different acid salts used to replace the traditional citrate, which is normally used in the culture for the production of this biopolymer. The volatile fatty acids (VFA) salts used were sodium acetate 0.0328 M, sodium propionate 0.0219 M, and sodium butyrate 0.0164 M. Results: The values of biomass yield, (Yp/x) obtained were 9.2 g/g for acetate, 11.78 g/g for citrate, 11.80 g/g for butyrate and 14.59 g/g for propionate, while the values of the product yield (Yp/s), were 0.92; 0.59; 0.71 and 0.72 for acetate, citrate,... Tipo: Journal article Palavras-chave: Rheology; Volatile fatty acids; Xanthan gum. Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582013000200006 Morphological study of biomass during the start-up period of a fixed-bed anaerobic reactor treating domestic sewage BABT Lima,Cláudio Antonio Andrade; Ribeiro,Rogers; Foresti,Eugenio; Zaiat,Marcelo. This work focused on a morphological study of the microorganisms attached to polyurethane foam matrices in a horizontal-flow anaerobic immobilized biomass (HAIB) reactor treating domestic sewage. The experiments consisted of monitoring the biomass colonization process of foam matrices in terms of the amount of retained biomass and the morphological characteristics of the cells attached to the support during the start-up period. Non-fluorescent rods and cocci were found to predominate in the process of attachment to the polyurethane foam surface. From the 10th week of operation onwards, an increase was observed in the morphological diversity, mainly due to rods, cocci, and Methanosaeta-like archaeal cells. Hydrodynamic problems, such as bed clogging and... Tipo: Info:eu-repo/semantics/article Palavras-chave: Anaerobic digestion; Biofilm; Domestic sewage; Fixed-bed reactor; Polyurethane foam. Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000600020 Characterization of immobilized biomass by amplified rDNA restriction analysis (ARDRA) in an anaerobic sequencing-batch biofilm reactor (ASBBR) for the treatment of industrial wastewater BABT Sarti,Arnaldo; Pozzi,Eloisa; Zaiat,Marcelo. The performance of an anaerobic sequencing-batch biofilm reactor (ASBBR- laboratory scale- 14L )containing biomass immobilized on coal was evaluated for the removal of elevated concentrations of sulfate (between 200 and 3,000 mg SO4-2·L-1) from industrial wastewater effluents. The ASBBR was shown to be efficient for removal of organic material (between 90% and 45%) and sulfate (between 95% and 85%). The microbiota adhering to the support medium was analyzed by amplified ribosomal DNA restriction analysis (ARDRA). The ARDRA profiles for the Bacteria and Archaea domains proved to be sensitive for the determination of microbial diversity and were consistent with the physical-chemical monitoring analysis of the reactor. At 3,000 mg SO4-2·L-1, there was a... Tipo: Info:eu-repo/semantics/article Palavras-chave: Sulfate removal; Support medium; Endonucleases; ARDRA; Batch reactor; ASBBR. Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000400019 Registros recuperados: 3 Primeira ... 1 ... Última

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