Aspergillus Niger
Mostrando 25-36 de 673 artigos, teses e dissertações.
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25. Detecção de Fungos em Sementes de Acca sellowiana (Berg) Burret
RESUMO Acca sellowiana é uma espécie frutífera nativa da Região Sul do Brasil que está despertando grande interesse econômico devido ao alto potencial organoléptico de seus frutos. A principal forma de propagação da espécie é via sexuada. Objetivando determinar a qualidade sanitária das sementes, foram comparadas três formas de detecção de fun
Floresta Ambient.. Publicado em: 17/08/2017
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26. Antimicrobial Performance of Thermoplastic Elastomers Containing Zinc Pyrithione and Silver Nanoparticles
The purpose of the present study was to evaluate the antimicrobial potential of styrene-ethylene/butylene-styrene based thermoplastic elastomers (TPE) incorporated with zinc pyrithione (ZnPT) and silver nanoparticles (AgNano). Japan Industrial Standard was applied to evaluate the antimicrobial potential of incorporated TPE compounds against Staphylococcus au
Mat. Res.. Publicado em: 13/07/2017
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27. Optimizing culture conditions for production of intra and extracellular inulinase and invertase from Aspergillus niger ATCC 20611 by response surface methodology (RSM)
Abstract The aim of this study was obtain a model that maximizes growth and production of inulinase and invertase by Aspergillus niger ATCC 20611, employing response surface methodology (RSM). The RSM with a five-variable and three-level central composite design (CCD) was employed to optimize the medium composition. Results showed that the experimental data
Braz. J. Microbiol.. Publicado em: 2017-07
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28. Análise Fitoquímica, Atividades Antifúngica e Antimicrobiana e Aplicação de Eichhornia crassipes contra Alguns Patógenos de Plantas
RESUMO O aguapé (Eichhornia crassipes) é uma macrófita aquática e uma das piores plantas daninhas aquáticas do mundo e do Egito. O agrupamento substancial de metais no aguapé foi maior na raiz do que na parte aérea. Os teores de nutrientes, por exemplo, amônia, nitrato, nitrito e fosfato, foram maiores na parte aérea do aguapé. O aguapé é uma fon
Planta daninha. Publicado em: 18/05/2017
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29. Conyza canadensis: Green Extraction Method of Bioactive Compounds and Evaluation of Their Antifungal Activity
Synthetic fungicides are a common treatment for post-harvest diseases in fruits, although demand is increasing for alternatives such as biopesticides. The aim of this work was to investigate the presence of naturally occurring antifungal compounds in Brazilian specimens of the weed Conyza canadensis. Two compounds [(4Z)-lachnophyllum lactone and (4Z,8Z)-matr
J. Braz. Chem. Soc.. Publicado em: 2017-05
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30. Emprego de Aspergillus niger AN 400 em reatores de bancada para remover pesticida de matriz aquosa
RESUMO Esta pesquisa propõe utilizar o fungo Aspergillus niger AN 400 no tratamento de matriz aquosa contendo metil paration por meio de reatores em batelada, sendo dividida em duas etapas. Na etapa I, foram montados reatores controle (RCs) contendo apenas metil paration em matriz aquosa; reatores contendo metil paration e suspensão de esporos de fungo (RF
Eng. Sanit. Ambient.. Publicado em: 20/04/2017
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31. Remoção de BTEX por fungos em reator aeróbio de escoamento contínuo
RESUMO Foi estudada a remoção de compostos BTEX (benzeno, tolueno, etilbenzeno e xilenos) em reator de escoamento contínuo e mistura perfeita, com inóculo de Aspergillus niger AN 400, operado sob o tempo de detenção hidráulica (TDH) de 12 horas para avaliar a eficiência do sistema na biorremediação de água poluída com gasolina na presença (Etapa
Eng. Sanit. Ambient.. Publicado em: 20/04/2017
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32. Remoção de BTEX por fungos em reator aeróbio de escoamento contínuo
RESUMO Foi estudada a remoção de compostos BTEX (benzeno, tolueno, etilbenzeno e xilenos) em reator de escoamento contínuo e mistura perfeita, com inóculo de Aspergillus niger AN 400, operado sob o tempo de detenção hidráulica (TDH) de 12 horas para avaliar a eficiência do sistema na biorremediação de água poluída com gasolina na presença (Etapa
Eng. Sanit. Ambient.. Publicado em: 20/04/2017
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33. LIPASE PRODUCTION BY Aspergillus niger GROWN IN DIFFERENT AGRO-INDUSTRIAL WASTES BY SOLID-STATE FERMENTATION
ABSTRACT Filamentous fungi can easily degrade agro-industrial wastes in solid-state fermentation processes, synthesizing many important commercial biocompounds, such as lipolytic enzymes. The aim of this study was to evaluate the effect of the composition of the solid culture medium on the production of lipolytic enzymes by the fungus Aspergillus niger. Rice
Braz. J. Chem. Eng.. Publicado em: 2017-04
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34. Production, Purification and Physicochemical Properties of an Exo-Polygalacturonase from Aspergillus niger SW06
In this study, exo-polygalacturonase (exo-PG) production from Aspergillus niger SW06 was optimized by central composition design and high amount of 21.51 units mL-1 could be achieved in optimizing growth conditions. Both gel filtration and ion exchange chromatography revealed a single exo-PG activity peak, and sodium dodecyl sulfate polyacrylamide gel electr
J. Braz. Chem. Soc.. Publicado em: 2017-04
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35. Formulation and in vitro evaluation of carbopol 934-based modified clotrimazole gel for topical application
ABSTRACT The aim of present study was to enhance topical permeation of clotrimazole gel preparation by using various permeability enhancers such as coconut oil, pistachio oil and sodium lauryl sulphate (SLS). Clotrimazole gel preparations were prepared and optimized by using three factor, five level central composite design. A second-order polynomial equatio
An. Acad. Bras. Ciênc.. Publicado em: 01/12/2016
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36. Synthesis of structured triacylglycerols enriched in n-3 fatty acids by immobilized microbial lipase
Abstract The search for new biocatalysts has aroused great interest due to the variety of micro-organisms and their role as enzyme producers. Native lipases from Aspergillus niger and Rhizopus javanicus were used to enrich the n-3 long-chain polyunsaturated fatty acids content in the triacylglycerols of soybean oil by acidolysis with free fatty acids from sa
Braz. J. Microbiol.. Publicado em: 2016-12