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Decolorization of the phthalocyanine dye reactive blue 21 by turnip peroxidase ...
Silva, Maria Cristina; Corrêa, Angelita D.; Amorim, M. T. Pessoa de; Parpot, Pier; Torres, Juliana A.; Chagas, Pricila Maria BatistaPeroxidases can be used in decolorization processes and the treatment of textiles effluents. This study evaluates the potential of the turnip peroxidase enzyme in the decolorization of the phthalocyanine textile dye Reactive Blue 21 (RB21). Some factors such as pH, the amount of H2O2 and the enzyme were evaluated in order to determine the optimum conditions for the enzyme performance. The reaction products form...
Obtention of plant peroxidase and its potential for the decolorization of the r...
Silva, Maria Cristina; Torres, Juliana A.; Corrêa, Angelita D.; Bernardes, Allana Maria; Amorim, M. T. Pessoa de; Santos, Custódio DonizetePeroxidases can be used in the decolorization process. There is a growing interest for new sources of this enzyme and for obtaining economically viable processes. In this work, a low-cost vegetable peroxidase extraction process is proposed; the resulting enzyme is characterized to determine its optimum pH, temperature, and stability conditions, and it is then applied in the decolorization of reactive dye Remazo...
Descoloração de corantes industriais e efluentes têxteis simulados por peroxida...
Silva, Maria Cristina; Corrêa, Angelita D.; Torres, Juliana A.; Amorim, M. T. Pessoa deThe removal of important textile dyes by turnip peroxidase (TNP) was evaluated. The textile effluents besides the residual dyes contain also chemical auxiliaries such as salts, dispersing and wetting agents. The effect of these was evaluated in the removal of the dyes reactive blue 21 and reactive blue 19 by TNP in synthetic effluents. A decrease of the efficency decolorization was observed. The action of the e...
Descoloração de efluentes têxteis sintéticos por catálise enzimática
Silva, Maria Cristina; Corrêa, Angelita D.; Amorim, M. T. Pessoa de; Oliveira, Sara L. C.; Duarte, António A. L. Sampaio; Torres, Juliana A.Peroxidases podem ser utilizadas em processos de descoloração no tratamento de efluentes têxteis. Há um interesse crescente por novas fontes desta enzima, e por processos de obtenção viáveis economicamente.1Neste trabalho o potencial de descoloração de efluentes têxteis sintéticos por peroxidase extraída de nabo (Brassica campestre ssp. rapifera) é avaliado. Para a obtenção da enzima de baixa pureza utiliza-se ...
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