3,434 research outputs found
Obtenção e caracterização de farinha de endosperma e de casca de pinhão para fins alimentícios.
Editores técnicos: Marcílio José Thomazini, Elenice Fritzsons, Patrícia Raquel Silva, Guilherme Schnell e Schuhli, Denise Jeton Cardoso, Luziane Franciscon. EVINCI. Resumos
Efeito do método de concentração enzimática sobre celulases produzidas por macrofungos em FES.
Resumo
Desempenho agronomico e caracteristicas da cultivar de trigo BRS 49 no Estado do Parana.
A cultivar de trigo BRS 49, desenvolvida pela Embrapa Trigo, foi indicada para semeadura no Estado do Parana, a partir de 1999. Para a determinacao do seu valor de cultivo e uso, foram utilizados dados de 54 experimentos, instalados em nove locais das regioes 6, 7 e 8 do Parana, no periodo de 1996 a 1998. Apresenta como principais caracteristicas: ciclo intermediario, altura media a alta, moderada resistencia ao acamamento, tolerancia ao aluminio toxico no solo, moderada resistencia ao oidio (Blumeria graminis f. sp tritici) e a ferrugem da folha (Puccinia recondita f. sp. tritici), com percentuais de severidade em ensaios inferiores aos das testemunhas Trigo BR 23 e Trigo BR 35, suscetibilidade a giberela (Giberella zeae), cujas notas foram superiores as atribuidas as testemunhas, elevado potencial de rendimento e boa qualidade industrial. No trienio considerado, apresentou rendimento medio de 4.667 kg/ha na Regiao 6, 3.432 kg/ha, na Regiao 7, e 3.930 kg/ha, na regiao 8. Esses valores foram 11%, 11% e 28%, respectivamente, superiores a media das testemunhas (Trigo BR 2, Trigo BR 35 e CEP 24-Industrial). Os percentuais de resposta ao controle fitossanitario foram, em geral, inferiores aos observados nas referidas testemunhas, evidenciando o elevado potencial de rendimento da cultivar com aplicacoes reduzidas de fungicidas. A forca geral de gluten (W), na media de 14 amostras coletadas nas tres Regioes, foi de 260 e a relacao P/L foi de 0,685. Portanto, a cultivar se enquadra na classe Trigo Pao, de acordo com a Instrucao Normativa n.1, de 27 de janeiro de 1999 do MA. A cultivar apresenta caracteristicas de interesse agronomico, principalmente por possibilitar a obtencao de altos rendimentos, sem a necessidade de elevados investimentos com fungicidas.bitstream/CNPSO/17105/1/circTec25.pd
Uso de marcadores moleculares para determinação de proteínas fúngicas hidrolíticas em biomassa florestal de uso energético.
Resumo. Disponível online. MIPE
Optimization of the production process of enzymatic activity of Lentinula edodes (Berk.) Pegler in holocelulases.
Issues such as fossil fuels and oil supplies have stimulated the search for renewable alternatives such as biofuels. Agricultural crop residues represent an abundant renewable resource for the future of bioethanol. For it to be a viable alternative, the second-generation ethanol which ought to provide a net energy gain, environmental benefits, should be economically viable, and also be produced in large quantities without reducing food supplies. The current difficulty of lignocellulosic biofuel production is the hydrolysis of biomass into sugar. This is a work in which the white-rot Lentinula edodes fungus secretes substantial amounts of hydrolytic enzymes and is useful for degradation of lignocellulosic biomass which have not been described yet. The objective of this investigation was to evaluate the pH effect (5, 6 and 7), agitation (0, 100 rpm and 200 rpm) and also the cultivation time (6, 9 and 12 days). The culture medium was supplemented with agro-industrial residue and the EF 52 strain of the fungus Lentinula edodes was used as a processing agent. A factorial design 22 repeating the central point was performed. Submerged cultivation was conducted in a synthetic medium and was incubated at 25?C. The total protein content was determined as well as the activity of xylanase and cellulase (endoglucanase, exoglucanase and ?-glucosidase). By Pareto diagram, the agitation and pH variables were significant for enzymatic activities. The highest enzyme expression occurred at pH values between 5.0 and 6.0 and above 100 rpm agitation. The exoglucanase was the enzyme which showed the highest activity in terms of cellulases, despite the cultivation time. Regarding the production of other enzymes and proteins, the most significant cultivation time was 12 days
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