Effect of dye structure and redox mediators on anaerobic azo and anthraquinone dye reduction
We investigated the biological decolourisation of dyes with different molecular structures. The kinetic constant values (k1) achieved with azo dye Reactive Red 120 were 7.6 and 10.1 times higher in the presence of RM (redox mediators) AQDS and riboflavin, respectively, than the assays lacking RM. Th...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Química
2012-01-01
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| Series: | Química Nova |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000300008&lng=en&tlng=en |
| _version_ | 1817970951146438656 |
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| author | Mayara Carantino Costa Francisco Suetônio B. Mota André Bezerra Dos Santos Glaydson Leandro Farias Mendonça Ronaldo Ferreira do Nascimento |
| author_facet | Mayara Carantino Costa Francisco Suetônio B. Mota André Bezerra Dos Santos Glaydson Leandro Farias Mendonça Ronaldo Ferreira do Nascimento |
| author_sort | Mayara Carantino Costa |
| collection | DOAJ |
| description | We investigated the biological decolourisation of dyes with different molecular structures. The kinetic constant values (k1) achieved with azo dye Reactive Red 120 were 7.6 and 10.1 times higher in the presence of RM (redox mediators) AQDS and riboflavin, respectively, than the assays lacking RM. The kinetic constant achieved with the azo dye Congo Red was 42 times higher than that obtained with the anthraquinone dye Reactive Blue 4. The effect of RM on dye reduction was more evident for azo dyes resistant to reductive processes, and ineffective for anthraquinone dyes because of the structural stability of the latter. |
| first_indexed | 2024-04-13T20:40:30Z |
| format | Article |
| id | doaj.art-3ae1f2e319734e959a3901480a44170b |
| institution | Directory Open Access Journal |
| issn | 1678-7064 |
| language | English |
| last_indexed | 2024-04-13T20:40:30Z |
| publishDate | 2012-01-01 |
| publisher | Sociedade Brasileira de Química |
| record_format | Article |
| series | Química Nova |
| spelling | doaj.art-3ae1f2e319734e959a3901480a44170b2022-12-22T02:30:52ZengSociedade Brasileira de QuímicaQuímica Nova1678-70642012-01-0135348248610.1590/S0100-40422012000300008S0100-40422012000300008Effect of dye structure and redox mediators on anaerobic azo and anthraquinone dye reductionMayara Carantino Costa0Francisco Suetônio B. Mota1André Bezerra Dos Santos2Glaydson Leandro Farias Mendonça3Ronaldo Ferreira do Nascimento4Universidade Federal do CearáUniversidade Federal do CearáUniversidade Federal do CearáUniversidade Federal do CearáUniversidade Federal do CearáWe investigated the biological decolourisation of dyes with different molecular structures. The kinetic constant values (k1) achieved with azo dye Reactive Red 120 were 7.6 and 10.1 times higher in the presence of RM (redox mediators) AQDS and riboflavin, respectively, than the assays lacking RM. The kinetic constant achieved with the azo dye Congo Red was 42 times higher than that obtained with the anthraquinone dye Reactive Blue 4. The effect of RM on dye reduction was more evident for azo dyes resistant to reductive processes, and ineffective for anthraquinone dyes because of the structural stability of the latter.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000300008&lng=en&tlng=encolour removaldyesstructure |
| spellingShingle | Mayara Carantino Costa Francisco Suetônio B. Mota André Bezerra Dos Santos Glaydson Leandro Farias Mendonça Ronaldo Ferreira do Nascimento Effect of dye structure and redox mediators on anaerobic azo and anthraquinone dye reduction Química Nova colour removal dyes structure |
| title | Effect of dye structure and redox mediators on anaerobic azo and anthraquinone dye reduction |
| title_full | Effect of dye structure and redox mediators on anaerobic azo and anthraquinone dye reduction |
| title_fullStr | Effect of dye structure and redox mediators on anaerobic azo and anthraquinone dye reduction |
| title_full_unstemmed | Effect of dye structure and redox mediators on anaerobic azo and anthraquinone dye reduction |
| title_short | Effect of dye structure and redox mediators on anaerobic azo and anthraquinone dye reduction |
| title_sort | effect of dye structure and redox mediators on anaerobic azo and anthraquinone dye reduction |
| topic | colour removal dyes structure |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000300008&lng=en&tlng=en |
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