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	Provedor de dados BJM (5) BABT (2) Bragantia (1) Autor Felipe,Maria das Graças de Almeida (8) Arruda,Priscila Vaz de (3) Lima,Luanne Helena Augusto (2) Silva,Débora Danielle Virgínio da (2) Silva,Silvio Silvério da (2) Torres,Fernando Araripe Gonçalves (2) Chaud,Luciana Cristina Silveira (1) Costa,Mônica Sarolli Silva de Mendonça (1) Cândido,Elisangela de Jesus (1) Godoi,Isamara (1) Hernández-Pérez,Andrés Felipe (1) Leonel,Lilian Vieira (1) Mancilha,Ismael Maciel de (1) Mattos,Rafael Taino de (1) Sene,Luciane (1) Silva,Debora Danielle Virginio da (1) Silva,Débora Danielle Virgínio (1) Tomotani,Ester Junko (1) Vitolo,Michele (1) Mais... Palavra-chave Xylitol (4) Candida guilliermondii (3) Hemicellulosic hydrolysate (2) Activated charcoal (1) Candida tropicalis (1) Ethanol (1) Glucose (1) Hemicellulosic hydrolyzate (1) Initial oxygen availability (1) Limestone (1) Nutritional supplementation (1) Oat hull (1) Overliming (1) Partial purification (1) Pichia stipitis (1) Ribosomal DNA (1) Rice bran extract (1) Scheffersomyces stipitis (1) Soil acidity (1) Soil quality (1) Mais... Tipo do documento Info:eu-repo/semantics/article (7) Info:eu-repo/semantics/report (1) Ano 2020 (1) 2016 (1) 2014 (1) 2012 (1) 2009 (1) 2007 (1) 2003 (2) Mais... País Brazil (8) Idioma Inglês (8)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 8 Primeira ... 1 ... Última Characterization of the solid residue generated in the detoxification step of sugarcane bagasse hemicellulosic hydrolysate and behavior in agricultural soils Bragantia Godoi,Isamara; Felipe,Maria das Graças de Almeida; Silva,Débora Danielle Virgínio; Leonel,Lilian Vieira; Costa,Mônica Sarolli Silva de Mendonça; Sene,Luciane. ABSTRACT Overliming is an effective way of neutralizing and reducing the toxicity of the hydrolysates generated from acidic pretreatment of lignocellulosic biomass for ethanol production and others biotechnological products. Overliming generates a solid residue whose inadequate disposal may represent an environmental problem. This work aimed at the chemical characterization of the solid residue generated during the detoxification of the sugarcane bagasse hemicellulosic hydrolysate and evaluation of its behavior in soil. The solid residue was submitted to physicochemical and granulometric analysis and determination of the contents of sugars, metals and toxic compounds (acetic acid, furfural, hydroxymethylfurfural and phenols). The potential of the residue... Tipo: Info:eu-repo/semantics/article Palavras-chave: Overliming; Limestone; Soil acidity; Soil quality; Toxicity. Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052020000100107 Evaluation of oat hull hemicellulosic hydrolysate fermentability employing Pichia stipitis BABT Chaud,Luciana Cristina Silveira; Silva,Débora Danielle Virgínio da; Mattos,Rafael Taino de; Felipe,Maria das Graças de Almeida. Oat hull hemicellulosic hydrolysate obtained by diluted acid hydrolysis was employed as fermentation medium for Pichia stipitis cultivation. A comparison between the use of treated hydrolysate with 1% activated charcoal to reduce the toxic compounds generated during the hydrolysis process and untreated hydrolysate as a control was conducted. In the cultures using treated hydrolysate the total consumption of glucose, low xylose consumption and ethanol and glycerol formation were observed. The medium formulated with untreated hydrolysate showed morphological cell modifications with consequently cell death, no ethanol formation and formation of glycerol as byproduct of fermentative process, probably as a response to stressful conditions to yeast due to... Tipo: Info:eu-repo/semantics/article Palavras-chave: Pichia stipitis; Hemicellulosic hydrolysate; Oat hull; Ethanol; Activated charcoal. Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000500017 Improvement of biotechnological xylitol production by glucose during cultive of Candida guilliermondii in sugarcane bagasse hydrolysate BABT Silva,Débora Danielle Virgínio da; Mancilha,Ismael Maciel de; Silva,Silvio Silvério da; Felipe,Maria das Graças de Almeida. The effect of glucose on xylose-to-xylitol bioconversion by Candida guilliermondii was examined by adding it to sugarcane bagasse hydrolysate medium to obtain different glucose:xylose ratios (1:25, 1:12, 1:5 and 1:2.5). Under experimental conditions, increasing glucose:xylose ratio improved the assimilation of the xylose present in the hydrolysate by yeast, resulting in biomass increase, and in the formation of xylitol and glycerol/ethanol by-products. Maximum values of xylitol yield (0.59 g g-1) and volumetric productivity (0.53 g l-1.h-1) were obtained with glucose:xylose ratio of 1:5, resulting in the higher conversion efficiency (64.3%). Tipo: Info:eu-repo/semantics/article Palavras-chave: Candida guilliermondii; Glucose; Sugarcane bagasse hydrolysate; Xylitol; Xylose. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000200005 New cultive medium for bioconversion of C5 fraction from sugarcane bagasse using rice bran extract BJM Silva,Debora Danielle Virginio da; Cândido,Elisangela de Jesus; Arruda,Priscila Vaz de; Silva,Silvio Silvério da; Felipe,Maria das Graças de Almeida. The use of hemicellulosic hydrolysates in bioprocesses requires supplementation as to ensure the best fermentative performance of microorganisms. However, in light of conflicting data in the literature, it is necessary to establish an inexpensive and applicable medium for the development of bioprocesses. This paper evaluates the fermentative performance of Scheffersomyces (Pichia) stipitis and Candida guilliermondii growth in sugarcane bagasse hemicellulosic hydrolysate supplemented with different nitrogen sources including rice bran extract, an important by-product of agroindustry and source of vitamins and amino acids. Experiments were carried out with hydrolysate supplemented with rice bran extract and (NH4)2SO4; peptone and yeast extract; (NH4)2SO4,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Candida guilliermondii; Hemicellulosic hydrolysate; Scheffersomyces stipitis; Rice bran extract; Sugarcane bagasse. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000400043 Reclassification of Candida guilliermondii FTI 20037 as Candida tropicalis based on molecular phylogenetic analysis BJM Lima,Luanne Helena Augusto; Felipe,Maria das Graças de Almeida; Torres,Fernando Araripe Gonçalves. Yeasts of the genus Candida are of clinical importance and also have many industrial applications, mainly in the food industry. The yeast Candida guilliermondii FTI 20037 has been extensively studied in order to establish a biotechnological process for the production of xylitol. The goal of this study was to verify the taxonomic classification of this strain based on the analysis of rDNA sequences and the xyl1 gene. DNA fragments from these sequences were amplified by PCR and BLAST analysis revealed strong identity with the corresponding sequences from Candida tropicalis. Based on these results, we propose that C. guilliermondii FTI 20037 must be reclassified as C. tropicalis. Tipo: Info:eu-repo/semantics/article Palavras-chave: Candida guilliermondii; Candida tropicalis; Ribosomal DNA; Xylitol. Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822003000500033 RECLASSIFICATION OF CANDIDA GUILLIERMONDII FTI 20037 AS CANDIDA TROPICALIS BASED ON MOLECULAR PHYLOGENETIC ANALYSIS BJM Lima,Luanne Helena Augusto; Felipe,Maria das Graças de Almeida; Torres,Fernando Araripe Gonçalves. Tipo: Info:eu-repo/semantics/report Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822003000400018 Sugarcane straw as a feedstock for xylitol production by Candida guilliermondii FTI 20037 BJM Hernández-Pérez,Andrés Felipe; Arruda,Priscila Vaz de; Felipe,Maria das Graças de Almeida. Abstract Sugarcane straw has become an available lignocellulosic biomass since the progressive introduction of the non-burning harvest in Brazil. Besides keeping this biomass in the field, it can be used as a feedstock in thermochemical or biochemical conversion processes. This makes feasible its incorporation in a biorefinery, whose economic profitability could be supported by integrated production of low-value biofuels and high-value chemicals, e.g., xylitol, which has important industrial and clinical applications. Herein, biotechnological production of xylitol is presented as a possible route for the valorization of sugarcane straw and its incorporation in a biorefinery. Nutritional supplementation of the sugarcane straw hemicellulosic hydrolyzate as a... Tipo: Info:eu-repo/semantics/article Palavras-chave: Sugarcane straw; Hemicellulosic hydrolyzate; Xylitol; Nutritional supplementation; Initial oxygen availability. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822016000200489 Obtaining partial purified xylose reductase from Candida guilliermondii BJM Tomotani,Ester Junko; Arruda,Priscila Vaz de; Vitolo,Michele; Felipe,Maria das Graças de Almeida. The enzymatic bioconversion of xylose into xylitol by xylose reductase (XR) is an alternative for chemical and microbiological processes. The partial purified XR was obtained by using the following three procedures: an agarose column, a membrane reactor or an Amicon Ultra-15 50K Centrifugal Filter device at yields of 40%, 7% and 67%, respectively. Tipo: Info:eu-repo/semantics/article Palavras-chave: Xylose reductase; Xylitol; Partial purification. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822009000300027 Registros recuperados: 8 Primeira ... 1 ... Última

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