Behavior of the Brown-rot Fungus Gloeophyllum trabeum on Thermally-modified Eucalyptus grandis Wood

ABSTRACT In this study, we aimed evaluate the behavior of the brown-rot fungus Gloeophylum trabeum and white-rot fungus Pycnoporus sanguineus on thermally-modified Eucalyptus grandis wood. To this end, boards from five-year-eleven-month-old E. grandis trees, taken from the Duratex-SA company stock, were thermally-modified between 180 °C and 220 °C in the Laboratory of Wood Drying and Preservation at Universidade Estadual Paulista -UNESP, Botucatu, Sao Paulo state Brazil. Samples of each treatment were tested according to the ASTM D-2017 (2008) technical norm. The accelerated decay caused by the brown-rot fungus G. trabeum was compared with the decay caused by the white-rot fungus P. sanguineus, studied b

A influência da Ponte Hercílio Luz no desenvolvimento da Ilha de Santa Catarina

Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Filosofia e Ciências Humanas. Programa de Pós-Graduação em História

Drug-induced anaphylaxis in children: Nonsteroidal anti-inflammatory drugs and drug provocation test

Universidade Federal de São Paulo, Dept Pediat, Div Allergy Clin Immunol & Rheumatol, BR-01308000 São Paulo, SP, BrazilUniversidade Federal de São Paulo, Dept Pediat, Div Allergy Clin Immunol & Rheumatol, BR-01308000 São Paulo, SP, BrazilWeb of Scienc

Potential application of Ganoderma lucidum in solid state fermentation of primary sludge and wheat straw

This study was conducted to investigate the production of lignocellulolytic enzymes and sugars by the fungus Ganoderma lucidum during solid state fermentation (SSF) using primary sludge (PS) and wheat straw (WS) as substrates at different concentration ratios. For fungal growth on SSF, 20 g of each blended substrate was added to Erlenmeyer flasks, which were autoclaved and maintained at room temperature prior to inoculation, whereas for submerged fermentation (SF), flasks containing 25 mL of potato dextrose broth (PDB) were used as standard to check the differences between both methods of growth, and then all flasks were incubated at 25 degrees C in the dark, during 8 and 16 days. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis analysis from the protein extract obtained from solid state fermentation strongly suggested that G. lucidum could produce lignocellulolytic enzymes to degrade primary sludge and wheat straw. Among the sugars, the production of xylose and mannose was disturbed by adding primary sludge. With the addition of primary sludge, high glucuronic acid content was observed. The results suggest that the combination of primary sludge and wheat straw, at concentration ratios of 1: 1 to 1: 3, respectively, can be used as a raw material in the production of lignocellulolytic enzymes and the bioconversion of other types of biomass by G. lucidum.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES

Behavior of the brown-rot fungus Gloeophyllum trabeum on thermally-modified Eucalyptus grandis wood

In this study, we aimed evaluate the behavior of the brown-rot fungus Gloeophylum trabeum and white-rot fungus Pycnoporus sanguineus on thermally-modified Eucalyptus grandis wood. To this end, boards from five-year-eleven-month-old E. grandis trees, taken from the Duratex-SA company stock, were thermally-modified between 180 ºC and 220 ºC in the Laboratory of Wood Drying and Preservation at Universidade Estadual Paulista - UNESP, Botucatu, Sao Paulo state Brazil. Samples of each treatment were tested according to the ASTM D-2017 (2008) technical norm. The accelerated decay caused by the brown-rot fungus G. trabeum was compared with the decay caused by the white-rot fungus P. sanguineus, studied by Calonego et al. (2010). The results showed that (1) brown-rot fungus caused greater decay than white-rot fungus; and (2) the increase in temperature from 180 to 220 ºC caused reductions between 28.2% and 70.0% in the weight loss of E. grandis samples incubated with G. trabeum.O objetivo deste estudo foi avaliar o comportamento do fungo de podridão parda Gloeophylum trabeum e do fungo de podridão branca Pycnoporus sanguineus sobre a madeira de Eucalyptus grandis modificada termicamente. Tábuas de árvores de E. grandis com cinco anos e 11 meses de idade, da empresa Duratex-SA, foram modificadas termicamente entre 180 ºC e 220 ºC no Laboratório de Secagem e Preservação de Madeiras da UNESP, Botucatu-SP, Brasil. Corpos de prova de cada tratamento foram testados, de acordo com a norma técnica ASTM D-2017 (2008). O apodrecimento acelerado causado pelo fungo de podridão parda G. trabeum foi comparado com o do fungo de podridão branca P. sanguineus, estudado por Calonego et al. (2010). Os resultados mostraram que (1) o apodrecimento causado pelo fungo de podridão parda foi maior que o de podridão branca e (2) o aumento da temperature de 180 para 220 ºC ocasionou reduções de 28,2% a 70,0% na perda de massa dos corpos de prova de E. grandis incubados com o G. trabeum

Behavior of the brown-rot fungus Gloeophyllum trabeum on thermally-modified Eucalyptus grandis wood

In this study, we aimed evaluate the behavior of the brown-rot fungus Gloeophylum trabeum and white-rot fungus Pycnoporus sanguineus on thermally-modified Eucalyptus grandis wood. To this end, boards from five-year-eleven-month-old E. grandis trees, taken from the Duratex-SA company stock, were thermally-modified between 180 ºC and 220 ºC in the Laboratory of Wood Drying and Preservation at Universidade Estadual Paulista - UNESP, Botucatu, Sao Paulo state Brazil. Samples of each treatment were tested according to the ASTM D-2017 (2008) technical norm. The accelerated decay caused by the brown-rot fungus G. trabeum was compared with the decay caused by the white-rot fungus P. sanguineus, studied by Calonego et al. (2010). The results showed that (1) brown-rot fungus caused greater decay than white-rot fungus; and (2) the increase in temperature from 180 to 220 ºC caused reductions between 28.2% and 70.0% in the weight loss of E. grandis samples incubated with G. trabeum

Prevalência de asma e doenças alérgicas em adolescentes: estudo evolutivo de nove anos (2003 a 2012)

OBJECTIVE: To determine the prevalence of symptoms of asthma, rhinitis, and atopic eczema in adolescents (AD; 13-14 years) living in seven Brazilian cities, by applying the standardized written questionnaire (WQ) of the International Study of Asthma and Allergies in Childhood (ISAAC), and to evaluate the time trend nine years after the last assessment of ISAAC phase 3 (ISP3). METHODS: The ISAAC-WQ was answered by 20,099 AD from the Northern, Northeastern, Southeastern, and Southern Brazilian regions. Values obtained were compared to those observed in ISP3 using nonparametric (chi-squared or Fisher) tests, and the ratio of annual increment/decrement was established for each of the centers, according to the symptom assessed. RESULTS: Considering the national data and comparing to values of ISP3, there was a decrease in the mean prevalence of active asthma (18.5% vs. 17.5%) and an increase in the frequency of severe asthma (4.5% vs. 4.7%) and physician-diagnosed asthma (14.3% vs. 17.6%). An increase in prevalence of rhinitis, rhinoconjunctivitis, and atopic eczema was also observed. CONCLUSIONS: The prevalence of asthma, rhinitis, and atopic eczema in Brazil was variable; higher prevalence values, especially of asthma and eczema, were observed in regions located closer to the Equator.OBJETIVO: Determinar a prevalência de sintomas relacionados à asma, à rinite e ao eczema atópico em adolescentes (13-14 anos, AD) residentes em sete cidades brasileiras com o questionário escrito (QE) padronizado do International Study of Asthma and Allergies in Childhood (Isaac) e verificar a tendência temporal passados nove anos da última avaliação do Isaac fase 3 (ISF3). MÉTODOS: O QE Isaac foi respondido por 20.099 AD (13-14 anos) moradores em centros das regiões Norte, Nordeste, Sudeste e Sul. Os índices obtidos foram comparados aos do ISF3 com o teste não paramétrico (qui-quadrado ou Fisher) e foi estabelecida a taxa de incremento/decremento anual para cada um dos centros segundo o sintoma avaliado. RESULTADOS: Em relação ao ISF3, considerando-se os dados nacionais, houve queda da prevalência média de asma ativa (18,5% vs. 17,5%) com elevação da frequência de asma grave (4,5% vs. 4,7%) e de asma diagnosticada por médico (14,3% vs. 17,6%). Aumento da prevalência de rinite e rinoconjuntivite e de eczema flexural também ocorreram. CONCLUSÕES: A prevalência de asma, rinite e eczema atópico no Brasil foi variável. Valores mais altos, sobretudo de asma e eczema, foram observados nos centros localizados mais próximos ao Equador.Universidade Federal de São Paulo (UNIFESP) Escola Paulista de Medicina Department of PediatricsUniversidade Federal do ParanáUniversidade Federal de Pernambuco Department of PediatricsUniversidade Estadual do ParáUniversidade Federal de Alagoas Department of PediatricsUniversidade Federal de Sergipe Department of PediatricsUniversidade Federal de Minas Gerais Department of PediatricsUniversidade de SantiagoUNIFESP, EPM, Department of PediatricsSciEL