Evaluation of biodegradation process of textile azo dye in solution by Aspergillus oryzae by UV-VIS and FTIR analysis

G.C. Santos; E.J.R. Almeida; C.R. Corso

Evaluation of biodegradation process of textile azo dye in solution by Aspergillus oryzae by UV-VIS and FTIR analysis

In: Industrial, medical and environmental applications of microorganisms

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G.C. Santos

G.C. Santos Biochemistry and Microbiology Department, Biosciences Institute, UNESP – Univ Estadual Paulista. Av. 24 A, no.1515, CEP 13506-900, Bela Vista, Rio Claro/SP, Brazil; crcorso@rc.unesp.br

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E.J.R. Almeida

E.J.R. Almeida Biochemistry and Microbiology Department, Biosciences Institute, UNESP – Univ Estadual Paulista. Av. 24 A, no.1515, CEP 13506-900, Bela Vista, Rio Claro/SP, Brazil; crcorso@rc.unesp.br

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C.R. Corso

C.R. Corso Biochemistry and Microbiology Department, Biosciences Institute, UNESP – Univ Estadual Paulista. Av. 24 A, no.1515, CEP 13506-900, Bela Vista, Rio Claro/SP, Brazil; crcorso@rc.unesp.br

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Type:: Chapter

Pages:: 109–114

DOI:: https://doi.org/10.3920/9789086867950_018

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This research aims to evaluate the biodegradation process of the textile azo dye Direct Blue 71 (DB71) by the fungus Aspergillus oryzae, using the UV-VIS spectrophotometer and the FTIR to analyse the dye solution treated by fungus pellets form. The biodegradation assays were prepared with dye solution DB71, A. oryzae pellets and distilled water in pH 2.5. The samples were incubated and every 24 h a sample was used to analysis on UV-VIS spectrophotometer and to make a disk with KBr for analysis of FTIR. After analysing the spectra and the absorbance ratio values, it was observed that changes occurred during the first 48 h showing signs of biodegradation that was only confirmed after analysis of FTIR spectra. Therefore, the UV-VIS spectrophotometry coupled with FTIR proved to be an important tool in the analysis of biodegradation of contaminants.

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Industrial, medical and environmental applications of microorganisms

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E-Book ISBN:: 9789086867950

Publisher:: Wageningen Academic

Print Publication Date:: 01 Nov 2014

Subjects
- Life Sciences

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Evaluation of biodegradation process of textile azo dye in solution by Aspergillus oryzae by UV-VIS and FTIR analysis

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Industrial, medical and environmental applications of microorganisms

Current status and trends

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