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| Registros recuperados: 16 | |
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| WISBECK,ELISABETH; FACCHINI,JEAN M.; ALVES,ENDI P.; SILVEIRA,MARCIA L.L.; GERN,REGINA M.M.; NINOW,JORGE L.; FURLAN,SANDRA A.. |
| ABSTRACT Fungi of Pleurotus genus have attracted a great interest due to their medicinal properties such as anti-inflammatory, antimicrobial and antitumor. These properties are attributed mainly to polysaccharides synthesized by Pleurotus. This work aimed to study the mycelial growth of P. ostreatus in submerged culture, evaluating the influence of the initial concentration of substrate (20 and 40 g/L of glucose) and the pH (4 and 6) on kinetic parameters of production of biomass. The effectiveness of different doses (10, 30 and 50 mg/kg) of a mycelium polysaccharide fraction extracted from P. ostreatus in reducing Sarcoma 180 development in mice was also verified. In the range of this study, maximum concentration of mycelial biomass (about 12.8 g/L) was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antitumor Activity; Mycelium; Pleurotus ostreatus; Polysaccharides; Sarcoma 180. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000502013 |
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| Yehia,Ramy Sayed. |
| Manganese peroxidase (MnP) was produced from white rot edible mushroom Pleurotus ostreatus on the culture filtrate. The enzyme was purified to homogeneity using (NH4)2SO4 precipitation, DEAE-Sepharose and Sephadex G-100 column chromatography. The final enzyme activity achieved 81UmL-1, specific activity 78 U mg-1 with purification fold of 130 and recovery 1.2% of the crude enzyme. SDS-PAGE indicated that the pure enzyme have a molecular mass of approximately 42 kDa. The optimum pH was between 4-5 and the optimum temperature was 25 ºC. The pure MnP activity was enhanced by Mn2+,Cu2+,Ca2+ and K+ and inhibited by Hg+2 and Cd+2.H2O2 at 5 mM enhanced MnP activity while at 10 mM inhibited it significantly. The MnP-cDNA encoding gene was sequenced and determined... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Manganese peroxidase; Aflatoxin B1; Pleurotus ostreatus; Purification. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000100018 |
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| Camacho Martínez, Francisco Javier. |
| En la producción de hongos comestibles se utilizan diversos residuos agroindustriales como la paja de cebada, trigo y avena. Como resultado del cultivo, se producen grandes cantidades de sustrato residual, el cual puede potencialmente ser usado para procesos de biorremediación in situ. En el presente estudio, se cultivó el hongo comestible Pleurotus ostreatus (CP-50) en presencia del hidrocarburo aromático policíclico, antraceno. La cepa se cultivó en tres condiciones: 1) Agar con Extracto de Malta (EMA), CP-50 y antraceno (tratamiento); 2) EMA y CP-50 (testigo) y 3) EMA y antraceno (blanco). Se utilizaron 4 concentraciones de antraceno por caja Petri (0.05, 0.1, 0.2 y 0.4 g). A cada muestra se le midió el área de la colonia (cm2), se determinó la cantidad... |
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Palavras-chave: Antraceno; Lacasas; PAGE; Pleurotus ostreatus; Proteínas; Anthracene; Laccases; Proteins; Estrategias para el Desarrollo Agrícola Regional; EDAR; Maestría. |
| Ano: 2013 |
URL: http://hdl.handle.net/10521/2198 |
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| Bernardi,Eduardo; Donini,Lorena Pastorini; Minotto,Elisandra; Nascimento,José Soares do. |
| O objetivo deste trabalho foi avaliar a produtividade, eficiência biológica, massa fresca, composição centesimal dos cogumelos Pleurotus ostreatus (BF24) e Pleurotus sajor-caju (PSC96/03 e PSC01/06) produzidos no substrato capim-elefante (Pennisetum purpureum) pasteurizado e a relação Carbono/Nitrogênio inicial e final do substrato. O substrato seco e particulado a 2 cm foi umedecido por 24 horas e pasteurizado a 100 ºC durante 30 minutos. Adicionaram-se 3% de inóculo de cada linhagem, sendo acondicionado em embalagens de polipropileno com 1 kg cada uma. Os substratos foram incubados a 26 ºC e na fase de frutificação a 23±3 ºC e umidade relativa de 75% a 90%. Na linhagem BF24 observou-se maior massa fresca (281,19g), eficiência biológica (112,46%) e... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pleurotus ostreatus; Pleurotus sajor-caju; Pennisetum purpureum; Eficiência biológica; Produtividade. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052009000400009 |
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| Alemán Morales, Mireya. |
| La producción de “setas” (Pleurotus ostreatus), es una alternativa para producir y diversificar los alimentos que requiere la población en México. En el país es escasa la información acerca de la rentabilidad de éste cultivo. Por ello, el objetivo de este trabajo fue estimar una función de producción que muestre matemáticamente la relación funcional entre los insumos productivos utilizados y la producción “setas”. La variable dependiente la constituyó la producción de “setas” producidas y la variable independiente fueron las bolsas en producción. Los resultados económicos mostraron que la etapa de producción II, la que es económicamente relevante, se inicia en el punto donde se encuentran en el área de producción 2449 bolsas y termina donde el producto... |
| Tipo: Tesis |
Palavras-chave: Función de producción; Pleurotus ostreatus; Optimización; Rentabilidad; “setas”; Production function; Pleurotus ostreatus; Optimisation; Viability; “mushrooms”. |
| Ano: 2008 |
URL: http://hdl.handle.net/10521/1417 |
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| Díaz,Rubén; Téllez-Téllez,Maura; Sánchez,Carmen; Bibbins-Martínez,Martha D; Díaz-Godínez,Gerardo; Soriano-Santos,Jorge. |
| Background: Enzymatic activity and laccase isoenzymes number of Pleurotus ostreatus grown in different pH values of the growing medium in submerged fermentation and incubated in buffer solutions of different initial pH values were determined. The expression profiles of five laccase genes (Lacc1, Lacc4, Lacc6, Lacc9 and Lacc10) in these cultures were also studied. Results: The highest laccases activity was obtained in cultures grown at initial pH of 4.5 and the lowest in cultures grown at initial pH of 8.5. Isoenzyme profiles were different in all the cases. Lacc1, Lacc4, Lacc6 and Lacc10 were expressed in all the cultures. Conclusions: The initial pH of the growing medium is an important factor for regulating the expression of laccase genes, having an... |
| Tipo: Journal article |
Palavras-chave: Laccases; Pleurotus ostreatus; Submerged fermentation; Zymogram. |
| Ano: 2013 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582013000400006 |
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| Sastre-Ahuatzi,M.; Téllez-Téllez,M.; Díaz-Godínez,G.; Montiel-González,A.M.; Díaz,R.; Sánchez,C.. |
| Radial growth rate, intracellular laccases and proteases activities, and protein content were evaluated in five strains of Pleurotus ostreatus, grown on starch-based and glucose-based agar media containing different concentrations of the glucose analogue 2-deoxyglucose (2-DG). Productivity of the strains in pilot scale cultivation was also determined. The mycelium of four strains had approximately between 0.6- to 3-fold higher protein content when grown on glucose medium containing 0.01 g/L of 2-DG than when grown on glucose medium. The radial growth rate and intracellular laccases activity of some strains showed a positive and a negative correlation with the productivity, respectively. These results suggest that the strains with high radial growth rate... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pleurotus ostreatus; 2-deoxyglucose; Laccases activity; Proteases activity; Mushroom production. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822007000300035 |
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| Aguiar,Tarsis; Luiz,Caroline; Rocha Neto,Argus Cezar; Di Piero,Robson Marcelo. |
| Abstract Polysaccharides from fungal wastes were partially characterized and evaluated for their protective effects against bacterial spot caused by Xanthomonas gardneri on four tomato cultivars: Santa Cruz Kada, Natália, BRS Sena and Forty. The polysaccharides were extracted from spent mushroom substrate of Pleurotus ostreatus, residual brewery yeast (Saccharomyces cerevisiae), and basidiocarps discarded from Lentinula edodes production. These polysaccharides were characterized for total carbohydrates, phenolics and proteins content, pH, scatter intensity, conductivity, Zeta potential, DPPH scavenging assay and infrared spectroscopy. The effects of time interval between treatment and inoculation (4 or 7 days) and polysaccharide concentrations (0.5 or 1.5... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Induced resistance; Lentinula edodes; Pleurotus ostreatus; Saccharomyces cerevisiae; Solanum lycopersicon; Xanthomonas gardneri. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052018000200299 |
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| Registros recuperados: 16 | |
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