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Effect of phenolic acids on manganese peroxidase-dependent peroxidation of linoleic acid and degradation of a non-phenolic lignin model compound

Autor: Annele Hatakka, Alexander N. Kapich, Sari Galkin

Publikováno v: Biocatalysis and Biotransformation. 25:350-358

The influence of aromatic phenolic and non-phenolic acids on manganese peroxidase (MnP)-dependent peroxidation of linoleic acid, and oxidation of a non-phenolic lignin model compound (LMC) was studied. Phenolic compounds inhibited both the MnP-depend

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5691ebcd6a2385dc446bae530f9abc59
https://doi.org/10.1080/10242420701379957

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Manganese peroxidases, laccases and oxalic acid from the selective white-rot fungus Physisporinus rivulosus grown on spruce wood chips

Autor: Pekka Maijala, Terhi K. Hakala, Nisse Kalkkinen, Sari Galkin, Annele Hatakka, Taina Lundell

Publikováno v: Enzyme and Microbial Technology. 36:461-468

The white-rot fungus Physisporinus rivulosus T241i produced manganese peroxidase (MnP), laccase, and oxalic acid when it was grown on spruce ( Picea abies ) wood chips. This white-rot basidiomycete degrades lignin selectively and is promising for use

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c0453ac0b600c437c77a72f52c9c6b06
https://doi.org/10.1016/j.enzmictec.2004.10.004

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Effect of lignocellulose-containing substrates on production of ligninolytic peroxidases in submerged cultures of Phanerochaete chrysosporium ME-446

Autor: A.N. Kapich, Taina Lundell, A. Botha, Annele Hatakka, Bernard A. Prior, Sari Galkin

Publikováno v: Enzyme and Microbial Technology. 34:187-195

In this study, we show that the wild-type strain Phanerochaete chrysosporium ME-446 is able to effectively produce manganese peroxidase (MnP) and lignin peroxidase (LiP) in submerged cultures under nitrogen and carbon non-limiting conditions, if the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8afd00db8ca34f6c82cf57e64f36ccde
https://doi.org/10.1016/j.enzmictec.2003.10.004

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Production of organic acids and oxalate decarboxylase in lignin-degrading white rot fungi

Autor: Sari Galkin, Annele Hatakka, Taina Lundell, Miia R. Mäkelä

Publikováno v: Enzyme and Microbial Technology. 30:542-549

Intracellular oxalate decarboxylase (ODC, EC 4.1.1.2) activity was screened in the mycelium of 12 white rot fungi. ODC activity was detected in the mycelial extracts of Dichomitus squalens, Phanerochaete sanguinea, Trametes ochracea, and Trametes ver

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fbbb2d92898c059fd7a3bbfced1b7aaa
https://doi.org/10.1016/s0141-0229(02)00012-1

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Production of Manganese Peroxidase and Organic Acids and Mineralization of 14 C-Labelled Lignin ( 14 C-DHP) during Solid-State Fermentation of Wheat Straw with the White Rot Fungus Nematoloma frowardii

Autor: Tamara Vares, K. Scheibner, Annele Hatakka, Wolfgang Fritsche, Sari Galkin, Martin Hofrichter, Mika Kalsi

Publikováno v: Applied and Environmental Microbiology. 65:1864-1870

The basidiomycetous fungus Nematoloma frowardii produced manganese peroxidase (MnP) as the predominant ligninolytic enzyme during solid-state fermentation (SSF) of wheat straw. The purified enzyme had a molecular mass of 50 kDa and an isoelectric poi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a99490df98a316e9e00cf9139e1da710
https://doi.org/10.1128/aem.65.5.1864-1870.1999

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Mineralization and solubilization of synthetic lignin by manganese peroxidases from Nematoloma frowardii and Phlebia radiata

Autor: Martin Hofrichter, Annele Hatakka, Sari Galkin, Jussi Sipilä, K. Vares, K. Scheibner

Publikováno v: University of Helsinki

Crude and purified manganese peroxidase from the white-rot fungi Nematoloma frowardii and Phlebia radiata catalyzed the partial depolymerization of a [14C-ring]labelled synthetic lignin into water-soluble fragments (30–50%). The in vitro depolymeri

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eba1860e3b241fd77d224f678305821f
https://doi.org/10.1016/s0168-1656(98)00180-1

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[Untitled]

Autor: Tamara Vares, Mika Kalsi, Annele Hatakka, Sari Galkin

Publikováno v: Biotechnology Techniques. 12:267-271

Capillary zone electrophoresis was used as an analytical method for the first time to determine organic acids accumulated by 15 white-rot fungi both in liquid and solid lignocellulose medium. Oxalic acid accumulation by Phanerochaete chrysosporium F1

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b537e665c5631bddece154f2973a42fa
https://doi.org/10.1023/a:1008842012539

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The laccase-catalyzed modification of lignin for enzymatic hydrolysis

Autor: Ulla Moilanen, Liisa Viikari, Sari Galkin, Miriam Kellock

Publikováno v: Enzyme and Microbial Technology

The efficient use of cellulases in the hydrolysis of pretreated lignocellulosic biomass is limited due to the presence of lignin. Lignin is known to bind hydrolytic enzymes nonspecifically, thereby reducing their action on carbohydrate substrates. Th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0b725d064213c013b8465481ebaa066b
https://pubmed.ncbi.nlm.nih.gov/22142723

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