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Registros recuperados: 19 | |
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Pelizer,Lúcia Helena; Moraes,Iracema de Oliveira. |
This paper presents a method to estimate the biomass of Spirulina cultivated on solid medium with sugarcane bagasse as a support, in view of the difficulty in determining biomass concentrations in bioprocesses, particularly those conducted in semi-solid or solid media. The genus Spirulina of the family Oscillatoriaceae comprises the group of multicellular filamentous cyanobacteria (blue-green microalgae). Spirulina is used as fish feed in aquaculture, as a food supplement, a source of vitamins, pigments, antioxidants and fatty acids. Therefore, its growth parameters are extremely important in studies of the development and optimization of bioprocesses. For studies of biomass growth, Spirulina platensis was cultured on solid medium using sugarcane bagasse... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Spirulina platensis; Solid state cultivation; Estimative of biomass; Sugarcane bagasse; Protein content. |
Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000300024 |
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Perovano Filho, Natalino; UNIVERSIDADE FEDERAL DE ALAGOAS, INSTITUTO DE QUÍMICA E BIOTECNOLOGIA; Silva, Kelly Fernanda Seára da; UNIVERSIDADE FEDERAL DE ALAGOAS, INSTITUTO DE QUÍMICA E BIOTECNOLOGIA; López, Ana Maria Queijeiro; UNIVERSIDADE FEDERAL DE ALAGOAS, INSTITUTO DE QUÍMICA E BIOTECNOLOGIA. |
Enzimas extracelulares de fungos são importantes para sua sobrevivência em ambientes inóspitos, sendo capazes de degradar compostos recalcitrantes. Fungos filamentosos secretam hidrolases e fenoloxidases capazes de degradar complexos de estruturas aromáticas, como de alguns xenobióticos. O propósito deste trabalho foi testar diferentes corantes (Azul de Metileno, Azure B, Verde Malaquita e Cristal Violeta), em substituição ao composto Poly R478, no método de seleção de microrganismos degradadores de fenóis em meio sólido, além de comparar tal atividade de Micoflora isolada de efluentes de indústria sucroalcooleira com a de outros fungos adquiridos em coleção oficial. Os corantes testados revelaram-se ótimos substitutos do Poly R478. O isolado que... |
Tipo: Por composição bioquímica; |
Palavras-chave: 2.12.02.00-1 degradação biológica; Fenoloxidases; Bagaço de cana; Serragem de madeira; Azul de Metileno; Cladosporium Microbiologia Aplicada biological degradation; Phenol; Sugarcane bagasse; Sawing wood; Methylene blue; Cladosporium. |
Ano: 2011 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/6187 |
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Santos,Édilla Ribeiro dos; Teles,Zozilene Nascimento Santos; Campos,Núria Mariana; Souza,Diogo Angeli Jacinto de; Bispo,Aline Simões da Rocha; Nascimento,Rodrigo Pires do. |
Approximately 1.5 trillion tons are the estimated yearly biomass production, making it an essentially unlimited source of raw material for environmentally friendly and biocompatible products transformed by microorganism, specially fungi and actinomycetes. Several lignocellulosic residues, such as sisal waste and sugarcane bagasse contain starch in their structures which could become important sources for the production of amylases. This study evaluated the production of amylolytic enzymes using Streptomyces sp. SLBA-08 strain, isolated from a semi-arid soil, according to their ability to grow on soluble starch as the sole carbon source. The effect of the carbon source (sisal waste and sugarcane bagasse) on α-amylase production was studied using submerged... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Α-amylases; Sugarcane bagasse; Sisal waste; Streptomyces sp. |
Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000500020 |
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Rossi,Ivan Henrique; Monteiro,Antonio Carlos; Machado,José Octavio; Andrioli,João Luciano; Barbosa,José Carlos. |
This investigation was performed to evaluate the biological efficiency (BE), mean mushroom weight (MMW), mean number of mushroom (MNM) and mushroom quality of Shiitake [ Lentinula edodes (Berk.) Pegler] when grown on a sterilized substrate composed by sugarcane bagasse enriched with rice bran and sugarcane molasses. The proportions of rice bran were 0, 15, 20, 25 and 30% (dry weight/dry weight of bagasse); and the concentrations of sugarcane molasses were 0, 30 and 60 g/kg (dry weight/dry weight of bagasse plus rice bran). Four flushes were obtained during the production cycle, providing 3 accumulated productions which were used for production analysis. The substrate supplemented with 25 and 30% rice bran yielded the highest BE (98.42 and 99.84%,... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lentinula edodes; Shiitake; Sugarcane bagasse. |
Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822003000100014 |
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Rossi,Ivan Henrique; Monteiro,Antonio Carlos; Machado,José Octavio; Barbosa,José Carlos. |
The purpose of this study was to assess the myceliation rate, mycelial vigor and "estimated biomass" of Lentinula edodes (Berk.) Pegler, grown on a sugarcane bagasse substrate enriched with rice bran and sugarcane molasses for spawn production. The proportions of rice bran used were 0, 10, 15, 20, 25, 30 and 40% (dry weight/dry weight of bagasse) and the sugarcane molasses concentrations tested were 0, 10, 20, 30, 40, 50 and 60 g/kg (dry weight/dry weight of bagasse plus rice bran). The myceliation rate was decreased by the addition of the higher quantities of rice bran. The 25 and 30% rice bran proportions induced the highest stimulation of mycelial vigor. The addition of sugarcane molasses did not change myceliation rate or mycelial vigor. The "estimated... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lentinula edodes; Shiitake; Sugarcane bagasse. |
Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822003000100013 |
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Santos,Bruna Silveira Lamanes dos; Gomes,Arthur Filipe Sousa; Franciscon,Emanuele Giuliane; Oliveira,Jean Maikon de; Baffi,Milla Alves. |
Nineteen fungi and seven yeast strains were isolated from sugarcane bagasse piles from an alcohol plant located at Brazilian Cerrado and identified up to species level on the basis of the gene sequencing of 5.8S-ITS and 26S ribosomal DNA regions. Four species were identified: Kluyveromyces marxianus, Aspergillus niger, Aspergillus sydowii and Aspergillus fumigatus, and the isolates were screened for the production of key enzymes in the saccharification of lignocellulosic material. Among them, three strains were selected as good producers of hemicellulolitic enzymes: A. niger (SBCM3), A. sydowii (SBCM7) and A. fumigatus (SBC4). The best β-xylosidase producer was A. niger SBCM3 strain. This crude enzyme presented optimal activity at pH 3.5 and 55 °C (141... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Β-glucosidase; Β-xylosidase; Xylanase; Aspergillus; Sugarcane bagasse. |
Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000300903 |
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Rezende,Maria Inês; Barbosa,Aneli de Melo; Vasconcelos,Ana Flora Dalberto; Endo,Asae Sakurada. |
Sugarcane bagasse was used as substrate for xylanase production by means of a strain of Trichoderma harzianum Rifai isolated from decaying Aspidosperma sp. (peroba) wood. The bagasse was washed, dried, milled and wetted with minimal salts medium and the cultures grown at 28 ± 2ºC for 7 days. Two extraction methods were tested for enzyme recovery: (A) Tween 80, 0.1% (v/v), in physiological saline, and (B) 50mM sodium acetate buffer, pH 5.0, under agitation (180rpm) for 15, 30 and 60min. After a single extraction, both extraction methods recovered an average of 15U/ml of xylanase activity, independent on the time of shaking. A second and third extraction recovered 10.4 and 6.6U/ml xylanase, respectively. The effect of volume size for extraction, and... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Trichoderma harzianum; Xylanase; Solid state fermentation; Sugarcane bagasse. |
Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822002000100014 |
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Registros recuperados: 19 | |
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