English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We investigated the transformation of six industrial azo and phthalocyanine dyes by ligninolytic peroxidases fromBjerkandera adusta and other white rot fungi. The dyes were not oxidized or were oxidized very little byPhanerochaete chrysosporium manganese peroxidase (MnP) or by a chemically generated Mn3+ -lactate complex. Lignin peroxidase (LiP) fromB. adusta also showed low activity with most of the dyes, but the specific activities increased 8- to 100-fold when veratryl alcohol was included in the reaction mixture, reaching levels of 3.9 to 9.6 U/mg. TheB. adusta andPleurotus eryngii MnP isoenzymes are unusual because of their ability to oxidize aromatic compounds like 2,6-dimethoxyphenol and veratryl alcohol in the absence of Mn2+ . These MnP isoenzymes also decolorized the azo dyes and the phthalocyanine complexes in an Mn2+ -independent manner. The reactions with the dyes were characterized by apparentKm values ranging from 4 to 16 μM and specific activities ranging from 3.2 to 10.9 U/mg. Dye oxidation by these peroxidases was not increased by adding veratryl alcohol as it was in LiP reactions. Moreover, the reaction was inhibited by the presence of Mn2+ , which in the case of Reactive Black 5, an azo dye which is not oxidized by the Mn3+ -lactate complex, was found to act as a noncompetitive inhibitor of dye oxidation byB. adusta MnP1.

applied and environmental microbiology

Transformation of Industrial Dyes by Manganese Peroxidases from <i>Bjerkandera adusta</i> and <i>Pleurotus eryngii</i> in a Manganese-Independent Reaction

Transformation of Industrial Dyes by Manganese Peroxidases from Bjerkandera adusta and Pleurotus eryngii in a Manganese-Independent Reaction