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Título : Obtention of plant peroxidase and its potential for the decolorization of the reactive dye Remazol Turquoise G 133%
Autor: Silva, Maria Cristina
Torres, Juliana Arriel
Corrêa, Angelita Duarte
Junqueira, Allana Maria Bernardes
Amorim, Maria Teresa Pessoa
Santos, Custódio Donizete dos
Palavras-chave: Peroxidases
Remazol turquoise
Textile wastewaters - Decolorization
Publicador: International Association on Water Pollution Research
Data da publicação: Fev-2012
Referência: SILVA, M. C. et al. Obtention of plant peroxidase and its potential for the decolorization of the reactive dye Remazol Turquoise G 133%. Water Science & Technology, Oxford, v. 65, n. 4, p. 669-675, Feb. 2012.
Abstract: Peroxidases 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 Remazol Turquoise G 133%. The turnip peroxidase (TP) was utilized as an enzymatic source. This enzyme exhibited maximum activity at pH 7.0, and it was active in the temperature range of 30 to 50 °C, which favors its use in industrial processes. Acetone was the most efficient solvent to induce precipitation. The removal of Remazol Turquoise G 133% was 56.0% complete after 50 min, while 41.0% of the same dye was removed with the commercial horseradish peroxidase enzyme in 50 min. TP presents potential as a viable alternative in the decolorization of textile wastewaters.
Idioma: en_US
Aparece nas coleções:DQI - Artigos publicados em periódicos

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