Use of laccase together with redox mediators to decolourize Remazol Brilliant Blue R
A pure fungal laccase, obtained from a commercial formulation used in the textile industry, did not decolourize Remazol Brilliant Blue R (RBBR). Decolourization was only observed when a small molecular weight redox mediator was added together with the laccase. Under the conditions specified, violuri...
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| Veröffentlicht in: | Journal of biotechnology 2001-08, Vol.89 (2), p.123-129 |
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| creator | Soares, Graça M.B. de Amorim, M.T.Pessoa Costa-Ferreira, Maria |
| description | A pure fungal laccase, obtained from a commercial formulation used in the textile industry, did not decolourize Remazol Brilliant Blue R (RBBR). Decolourization was only observed when a small molecular weight redox mediator was added together with the laccase. Under the conditions specified, violuric acid (5.7 mM) was the most effective mediator studied and almost complete decolourization was observed within 20 min. In contrast, 1-hydroxybenzotriazole (HOBT, 11 mM) decolourized RBBR at about a two-fold slower rate and to a lesser extent. Also, higher concentrations of HOBT were inhibitory which could be due to inactivation of laccase by the toxic HOBT radical. The commercial laccase formulation that contained phenothiazine-10-propionic acid as the mediator was least effective, giving 30% decolourization under equivalent conditions. We suggest that similar laccase plus mediator systems could be used for the detoxification of related anthraquinone textile dyes. |
| doi_str_mv | 10.1016/S0168-1656(01)00302-9 |
| format | Article |
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Decolourization was only observed when a small molecular weight redox mediator was added together with the laccase. Under the conditions specified, violuric acid (5.7 mM) was the most effective mediator studied and almost complete decolourization was observed within 20 min. In contrast, 1-hydroxybenzotriazole (HOBT, 11 mM) decolourized RBBR at about a two-fold slower rate and to a lesser extent. Also, higher concentrations of HOBT were inhibitory which could be due to inactivation of laccase by the toxic HOBT radical. The commercial laccase formulation that contained phenothiazine-10-propionic acid as the mediator was least effective, giving 30% decolourization under equivalent conditions. We suggest that similar laccase plus mediator systems could be used for the detoxification of related anthraquinone textile dyes.</description><identifier>ISSN: 0168-1656</identifier><identifier>EISSN: 1873-4863</identifier><identifier>DOI: 10.1016/S0168-1656(01)00302-9</identifier><identifier>PMID: 11500205</identifier><language>eng</language><publisher>Netherlands: Elsevier B.V</publisher><subject>1-hydroxybenzotriazole ; Anthraquinones - chemistry ; Color ; Coloring Agents - chemistry ; decolorization ; Kinetics ; Laccase ; Mediator ; Oxidation-Reduction ; Oxidoreductases - antagonists & inhibitors ; Oxidoreductases - chemistry ; Promazine - chemistry ; Remazol dye ; violuric acid</subject><ispartof>Journal of biotechnology, 2001-08, Vol.89 (2), p.123-129</ispartof><rights>2001 Elsevier Science B.V.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c429t-2659521e84c2578f86f19ae04a403e9d8f25be907351c5706f4999270adf6ba13</citedby><cites>FETCH-LOGICAL-c429t-2659521e84c2578f86f19ae04a403e9d8f25be907351c5706f4999270adf6ba13</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/S0168-1656(01)00302-9$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/11500205$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Soares, Graça M.B.</creatorcontrib><creatorcontrib>de Amorim, M.T.Pessoa</creatorcontrib><creatorcontrib>Costa-Ferreira, Maria</creatorcontrib><title>Use of laccase together with redox mediators to decolourize Remazol Brilliant Blue R</title><title>Journal of biotechnology</title><addtitle>J Biotechnol</addtitle><description>A pure fungal laccase, obtained from a commercial formulation used in the textile industry, did not decolourize Remazol Brilliant Blue R (RBBR). Decolourization was only observed when a small molecular weight redox mediator was added together with the laccase. Under the conditions specified, violuric acid (5.7 mM) was the most effective mediator studied and almost complete decolourization was observed within 20 min. In contrast, 1-hydroxybenzotriazole (HOBT, 11 mM) decolourized RBBR at about a two-fold slower rate and to a lesser extent. Also, higher concentrations of HOBT were inhibitory which could be due to inactivation of laccase by the toxic HOBT radical. The commercial laccase formulation that contained phenothiazine-10-propionic acid as the mediator was least effective, giving 30% decolourization under equivalent conditions. We suggest that similar laccase plus mediator systems could be used for the detoxification of related anthraquinone textile dyes.</description><subject>1-hydroxybenzotriazole</subject><subject>Anthraquinones - chemistry</subject><subject>Color</subject><subject>Coloring Agents - chemistry</subject><subject>decolorization</subject><subject>Kinetics</subject><subject>Laccase</subject><subject>Mediator</subject><subject>Oxidation-Reduction</subject><subject>Oxidoreductases - antagonists & inhibitors</subject><subject>Oxidoreductases - chemistry</subject><subject>Promazine - chemistry</subject><subject>Remazol dye</subject><subject>violuric acid</subject><issn>0168-1656</issn><issn>1873-4863</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2001</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkMtOxDAMRSMEgmHgE0BZIVgU7LZpmxUCxEtCQuKxjjKpC0GZCSQtr68nMCNYsrEt-9pXPoxtIewjYHVwm0KTYSWqXcA9gALyTC6xETZ1kZVNVSyz0a9kja3H-AQApRS4ytYQBUAOYsTu7iNx33GnjdGp7P0D9Y8U-JvtH3mg1r_zKbVW9z7ENOUtGe_8EOwn8Rua6k_v-HGwzlk96_mxG1J7g6102kXaXOQxuz87vTu5yK6uzy9Pjq4yU-ayz_JKSJEjNaXJRd10TdWh1ASlLqEg2TZdLiYkoS4EGlFD1ZVSyrwG3XbVRGMxZjvzu8_BvwwUezW10ZBzekZ-iAobFEWZgIyZmAtN8DEG6tRzsFMdPhSC-sapfnCqb1YKUP3gVDLtbS8Mhkmi8Le14JcEh3MBpTdfLQUVjaWZScQCmV613v5j8QXBTIOP</recordid><startdate>20010823</startdate><enddate>20010823</enddate><creator>Soares, Graça M.B.</creator><creator>de Amorim, M.T.Pessoa</creator><creator>Costa-Ferreira, Maria</creator><general>Elsevier B.V</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QO</scope><scope>8FD</scope><scope>FR3</scope><scope>P64</scope></search><sort><creationdate>20010823</creationdate><title>Use of laccase together with redox mediators to decolourize Remazol Brilliant Blue R</title><author>Soares, Graça M.B. ; de Amorim, M.T.Pessoa ; Costa-Ferreira, Maria</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c429t-2659521e84c2578f86f19ae04a403e9d8f25be907351c5706f4999270adf6ba13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2001</creationdate><topic>1-hydroxybenzotriazole</topic><topic>Anthraquinones - chemistry</topic><topic>Color</topic><topic>Coloring Agents - chemistry</topic><topic>decolorization</topic><topic>Kinetics</topic><topic>Laccase</topic><topic>Mediator</topic><topic>Oxidation-Reduction</topic><topic>Oxidoreductases - antagonists & inhibitors</topic><topic>Oxidoreductases - chemistry</topic><topic>Promazine - chemistry</topic><topic>Remazol dye</topic><topic>violuric acid</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Soares, Graça M.B.</creatorcontrib><creatorcontrib>de Amorim, M.T.Pessoa</creatorcontrib><creatorcontrib>Costa-Ferreira, Maria</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Biotechnology Research Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>Journal of biotechnology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Soares, Graça M.B.</au><au>de Amorim, M.T.Pessoa</au><au>Costa-Ferreira, Maria</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Use of laccase together with redox mediators to decolourize Remazol Brilliant Blue R</atitle><jtitle>Journal of biotechnology</jtitle><addtitle>J Biotechnol</addtitle><date>2001-08-23</date><risdate>2001</risdate><volume>89</volume><issue>2</issue><spage>123</spage><epage>129</epage><pages>123-129</pages><issn>0168-1656</issn><eissn>1873-4863</eissn><abstract>A pure fungal laccase, obtained from a commercial formulation used in the textile industry, did not decolourize Remazol Brilliant Blue R (RBBR). Decolourization was only observed when a small molecular weight redox mediator was added together with the laccase. Under the conditions specified, violuric acid (5.7 mM) was the most effective mediator studied and almost complete decolourization was observed within 20 min. In contrast, 1-hydroxybenzotriazole (HOBT, 11 mM) decolourized RBBR at about a two-fold slower rate and to a lesser extent. Also, higher concentrations of HOBT were inhibitory which could be due to inactivation of laccase by the toxic HOBT radical. The commercial laccase formulation that contained phenothiazine-10-propionic acid as the mediator was least effective, giving 30% decolourization under equivalent conditions. We suggest that similar laccase plus mediator systems could be used for the detoxification of related anthraquinone textile dyes.</abstract><cop>Netherlands</cop><pub>Elsevier B.V</pub><pmid>11500205</pmid><doi>10.1016/S0168-1656(01)00302-9</doi><tpages>7</tpages></addata></record> |
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| subjects | 1-hydroxybenzotriazole Anthraquinones - chemistry Color Coloring Agents - chemistry decolorization Kinetics Laccase Mediator Oxidation-Reduction Oxidoreductases - antagonists & inhibitors Oxidoreductases - chemistry Promazine - chemistry Remazol dye violuric acid |
| title | Use of laccase together with redox mediators to decolourize Remazol Brilliant Blue R |
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