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Dissertations / Theses on the topic 'Fungi Laccases'

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Published: 5 June 2025

Last updated: 2 August 2025

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1

Osma, Cruz Johann Faccelo. "Production of laccases by the white-rot fungus trametes pubescens for their potential application to synthetic dye treatment." Doctoral thesis, Universitat Rovira i Virgili, 2009. http://hdl.handle.net/10803/8578.

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Approximately 10,000 different dyes and pigments are produced annually worldwide and used extensively in the dye and printing industries. This has resulted in the generation of large volumes of highly polluted wastewater. Apart from the aesthetic deterioration of the natural water bodies, dyes also cause harm to the flora and fauna in the natural environment. Therefore, wastewater containing dyes must be treated prior to their discharge into the environment.<br/><br/>Different methods can be applied for the treatment of synthetic dyes from aqueous solutions, such as ozonation, coagulation, flo

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2

Luo, Wen. "Growth studies of marine and terrestrial lignicolous fungi with special reference to laccase and other lignin-modifying enzyme activities of xylariaceous fungi /." access full-text access abstract and table of contents, 2005. http://libweb.cityu.edu.hk/cgi-bin/ezdb/thesis.pl?phd-bch-b19887905a.pdf.

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Thesis (Ph.D.)--City University of Hong Kong, 2005.<br>"Submitted to Department of Biology and Chemistry in partial fulfillment of the requirements for the degree of Doctor of Philosophy" Includes bibliographical references (leaves 216-256)

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3

Evans, John Parker. "Autoregenerative Laccase Cathodes: Fungi at the Food, Water, and Energy Nexus." Thesis, The University of Arizona, 2016. http://hdl.handle.net/10150/612407.

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Today’s most pressing problems would greatly benefit from an integrated production method for food, water, and energy. Biological fuel cells can offer such a production method, but current designs cannot be scaled to meet global demand. The ability of five different fungal strains to secrete laccase was evaluated under optimized culture conditions using three inducers. A specialized electrode was developed to increase the loading of laccase on the cathode. Trametes versicolor was then immobilized at the modified cathode and shown to secrete electrochemically active laccase. This hybrid de

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4

Bettin, Fernanda. "Cinética de crescimento e produção de lacases do fungo Pleurotus sajor-caju PS-2001 (Fr.) Singer em processo submerso em biorreator com agitação mecânica." reponame:Repositório Institucional da UCS, 2010. https://repositorio.ucs.br/handle/11338/555.

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Submitted by Marcelo Teixeira (mvteixeira@ucs.br) on 2014-06-03T17:26:08Z No. of bitstreams: 1 Tese Fernanda Bettin.pdf: 3264365 bytes, checksum: 15d4eaeafc7deb4520c2e8ae285e8490 (MD5)<br>Made available in DSpace on 2014-06-03T17:26:08Z (GMT). No. of bitstreams: 1 Tese Fernanda Bettin.pdf: 3264365 bytes, checksum: 15d4eaeafc7deb4520c2e8ae285e8490 (MD5)

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Uzan-Boukhris, Eva. "Etude de nouvelles oxydo-réductases impliquées dans la dégradation de la biomasse végétale chez les champignons du genre Pycnoporus : de l'expression des gènes aux applications biothechnologiques." Thesis, Aix-Marseille 1, 2011. http://www.theses.fr/2011AIX10104.

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Cette étude a pour objectif la mise en évidence, chez les basidiomycetes du genre Pycnoporus, de nouvelles oxydo-réductases impliquées dasn la dégradation de la biomasse végétale: de l'expression des gènes aux applications biotechnologiques. Les champs d'application visés concernent essentiellement le domaine de la chimie verte, dans le cadre du projet européen BIORENEW. Le travail s'est articulé autour de trois axes principaux. Le premier a concerné l'exploration de la biodiversité naturelle en particulier tropicale, pour la sélection de souches productrices de nouvelles laccases de haut pote

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Rosa, Letícia Osório da. "Levantamento de macrofungos (filo Basidiomycota, subfilo Agaricomycotina) do nordeste do Rio Grande do Sul e avaliação do seu potencial ligninolítico." reponame:Repositório Institucional da UCS, 2013. https://repositorio.ucs.br/handle/11338/684.

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Submitted by Marcelo Teixeira (mvteixeira@ucs.br) on 2014-06-16T13:42:16Z No. of bitstreams: 1 Dissertacao Leticia Osorio da Rosa.pdf: 17230782 bytes, checksum: 3f0328e46773e7a61e1fd2e792a3c366 (MD5)<br>Made available in DSpace on 2014-06-16T13:42:16Z (GMT). No. of bitstreams: 1 Dissertacao Leticia Osorio da Rosa.pdf: 17230782 bytes, checksum: 3f0328e46773e7a61e1fd2e792a3c366 (MD5)<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico

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7

Knutson, Kristina Parks. "Enzymatic Biobleaching of Recalcitrant Paper Dyes." Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/7959.

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Modern manufacturing processes assume efficient utilization and recycling of natural resources whenever possible. Over the past decade paper recycling has progressed from 33.5% in 1990 to just above 48% in 2002.1 Indeed, for certain select grades, (newspaper and old corrugated containers) greater than 70% is currently being recycled. In contrast, mixed office waste and colored directory papers are often underutilized. A major difficulty in recycling these grades of paper is the problems associated with decolorizing the dyes present in the paper.2 Of the commonly used paper dyes, the stilbene d

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8

Assis, Tânia Regina de. "Obtenção de enzimas lignolíticas visando à hidrólise enzimática da fração lignocelulósica de bagaço de cana pré-tratado hidrotermicamente." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/11/11138/tde-06012016-110640/.

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A vinhaça e o bagaço de cana são os principais subprodutos oriundos do processamento da cana-de-açúcar nas indústrias sucroalcooleiras, sendo geradas grandes quantidades dos mesmos. O fungo basidiomiceto Pleurotus ostreatus tem a capacidade de degradar materiais lignocelulolíticos e produzir enzimas lignolíticas de interesse para as indústrias. Com o objetivo de avaliar a produção das enzimas lacases e peroxidase, o fungo Pleurotus ostreatus, foi cultivado em meio contendo bagaço pré-tratado e vinhaça, ou em meio contendo apenas vinhaça, em sistema de fermentação semissólido ou submerso; as en

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9

Gonzalez, Bautista Enrique. "Amélioration du pré-traitement d'un substrat à base de bagasse de canne à sucre par Pycnoporus sanguineus pour la production de bioéthanol de seconde génération." Thesis, Aix-Marseille, 2019. http://theses.univ-amu.fr.lama.univ-amu.fr/191218_GONZALEZBAUTISTA_299yaz508c24jzl757xy_TH.pdf.

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Le pré-traitement biologique représente une option peu couteuse et éco-compatible bien qu’elle nécessite un temps plus long en comparaison avec des méthodes chimiques. Les champignons de la pourriture blanche producteurs de laccases (phénoloxydases) comme Pycnoporus sanguineus sont de candidats pour de tels traitements biologiques. Les objectifs de ce travail sont de définir i) les conditions de cultures (sources azotée, inducteurs aromatiques des laccases, inoculum et le temps d’incubation) et ii) la préparation du substrat (pasteurisation) qui favorisent les activités laccases et la déphénol

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10

Passarini, Michel Rodrigo Zambrano 1979. "Caracterização da diversidade de fungos filamentosos associados a esponjas marinhas e avaliação da produção de lacase = Diversity of filamentous fungi associated with marine sponges and evaluation of laccase production." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/316911.

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Orientador: Lara Durães Sette<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Biologia<br>Made available in DSpace on 2018-08-21T06:41:16Z (GMT). No. of bitstreams: 1 Passarini_MichelRodrigoZambrano_D.pdf: 6997453 bytes, checksum: 0a905c32bd8d912eb875c88cff54de8e (MD5) Previous issue date: 2012<br>Resumo: O oceano representa um habitat promissor na busca por novos micro-organismos, os quais podem apresentar capacidade de produzir enzimas de interesse industrial diferentes das produzidas por seus parceiros terrestres. Neste contexto, duas amostras da esponja marinha Drag

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11

Arnstadt, Tobias. "Die Rolle oxidativer Pilzenzyme für die Totholzzersetzung und die Zersetzungsdynamik von Fagus sylvatica, Picea abies und Pinus sylvestris." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-225002.

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In Waldökosystemen ist Totholz von zentraler Bedeutung, indem es zahlreichen Organismen einen Lebensraum bietet oder als Substrat dient, Bestandteil des Kohlenstoff- und Nährstoffkreislaufs ist sowie als ein wichtiges strukturelles Element fungiert. Für seine Zersetzung ist die Überwindung der Ligninbarriere von besonderer Bedeutung. Dazu sind lediglich saprobionte Pilze aus den Phyla der Basidiomycota und Ascomycota in der Lage, die verschiedene Strategien – die Fäuletypen – entwickelt haben, um Lignin abzubauen oder zu modifizieren und somit Zugang zu den vom Lignin inkrustierten Polysachari

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12

Burlat, Vincent. "Étude immunocytochimique de la distribution ultrastructurale des lignines dans la paille de blé et de son influence sur le mode d'action des champignons ligninolytiques : application aux pâtes à papier." Université Joseph Fourier (Grenoble ; 1971-2015), 1997. http://www.theses.fr/1997GRE10100.

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Les champignons basidiomycetes filamenteux sont parmi les plus performants pour la degradation de la lignine. Ils doivent leur activite a un complexe enzymatique au sein duquel trois enzymes jouent un role fondamental dans les mecanismes d'oxydation de la lignine. Il s'agit des lignines peroxydases (lip), des manganese peroxydases (mnp) et des laccases (lac). Trois souches fongiques, phlebia radiata (lip, mnp, lac), ceriporiopsis subvermispora (mnp, lac) et pleurotus eryngii (mnp, lac), ont ete selectionnees pour leur aptitude a degrader la paille de ble, dans le but d'utiliser les enzymes les

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13

Rühl, Martin. "Laccases and other ligninolytic enzymes of the basidiomycetes Coprinopsis cinerea and Pleurotus ostreatus." Doctoral thesis, 2009. http://hdl.handle.net/11858/00-1735-0000-0006-B127-A.

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14

Sai, I.-hsi, and 賽逸昕. "Optimization of Growth Condition and Laccase Production by White Rot Fungi." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/c7djn7.

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碩士<br>東吳大學<br>微生物學系<br>93<br>White rot fungi produce three main extracellular enzymes involved in ligninolysis, including laccase, lignin peroxidase (LiP) and manganese peroxidase (MnP). These enzymes are capable of initiating the oxidation of lignin by a free-radical mechanism which also led to the degradation of a wide variety of normally very recalcitrant environmental pollutants. Laccase is a glycosylated polyphenol oxidase which contains four copper ions per molecule and has shown good potential to be used in bioremediation, biopulping, biobleaching, medicine, and textile industry. Forty-

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15

Vipotnik, Ziva. "Bioremediation and biodegradation of selected polyaromatic hydrocarbons by fungi." Doctoral thesis, 2021. http://hdl.handle.net/1822/75428.

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Tese de doutoramento em Engenharia Química e Biológica<br>Despite the amount of pollutants in the ecosphere has been increasing for a long time, soil contaminated with polyaromatic hydrocarbons (PAH) still remains one of the most important environmental problems worldwide. PAH are universal pollutants with a big variation in their concentration levels in different regions. PAH tend to bind to clays as these have high surface area, which allows more binding and adsorption of PAH on finer soil fractions. However, clay particles reduce in size as time goes by, diminishing porosity and transferabl

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16

Lee, Zhi-Zheng, and 李至正. "Degradation of Tetracycline by Laccase and Manganese Peroxidase Produced by White Rot Fungi." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/01209488478206289094.

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碩士<br>東吳大學<br>微生物學系<br>103<br>Emerging contaminants are either new or unrecognized chemical that pose risks on human health and ecological environment. It can be divided into four groups: "Pharmaceuticals and personal care products, PPCPs", "Endocrine disrupting chemicals, EDCs" "industrial chemicals "and “Biosynthesis chemicals". Tetracycline is one of the emerging contaminants and belongs to PPCPs. Tetracycline is widely used in the treatment of humans and animals. General sewage system cannot effectively remove tetracycline; also, tetracycline can be detected in most surface water. Traditio

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17

Meng, Chui-Ting, and 孟垂婷. "Production of laccase by white-rot fungi for use in air-cathode microbial fuel cells." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/85396957731782207420.

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碩士<br>國立雲林科技大學<br>環境與安全衛生工程系<br>104<br>The objective of this research is to develop an air biocathode microbial fuel cell (AB-MFC), with cultures of laccase-producing white rot fungi-Ganoderma lucidum (BCRC 36123) planted at the cathode. The developed AB-MFC was then applied to investigate the enhancement of the decomposition of azo dyes in wastewater as well as its power generation. The motivation of this study was that the azo dye acid orange 7 (AO7) in the wastewater contained within the anode chamber of the AB-MFC could diffuse to the cathode through a polyvinyl alcohol hydrogel (PVA-H), s

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18

Chang, Ru-Hui, and 張如慧. "Laccase Purification and Characterization From the White Rot Fungi and Decolorization of Dyes by the Enzyme." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/64421719561934915480.

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碩士<br>東吳大學<br>微生物學系<br>96<br>Laccase is one of the ligninolytic enzymes produced by white rot fungi which is a very versatile enzyme. It has been used extensively in pulp and paper industry, detoxifying the environmental pollutants, and food and cosmetic industries. The purposes of this study are to (1) provide identification of isolate A8, a wood rot fungus which excrete high amount of laccase, using both traditional and molecular biology technique; (2) purify and characterize laccase(s) produced by isolate A8; (3) evaluate the efficiency of decoloration activities of laccase produced by is

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19

Xiao, Po-Yun, and 蕭珀雲. "Purification and characterization of manganese peroxidase and laccase produced by a white-rot fungi MB-F14." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/93100466661212513164.

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碩士<br>國立臺灣海洋大學<br>海洋生物研究所<br>96<br>Dye containing potato dextrose agar (PDA) plates were used to screen 6 white-rot fungi for their decolourising ability.Fungus that produced the highest activities of laccase and MnP were choosen for later experiments. In this study different agriculture wastes including rice straw, bark of tapa cloth tree, and core of tapa cloth tree were used to induce laccase and MnP from MB-F14 at 30 ℃.The highest laccase and MnP activity were induced when employing bark of tapa cloth tree at the substrate and incubated MB-F14 in semi-solid state condition. Therefore, high

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20

Chandra, Richard P. "Improving the brightness and bleachability of douglas-fir mechanical pulps using white-rot fungi and laccase enzymes." Thesis, 1999. http://hdl.handle.net/2429/8900.

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Douglas-fir is a common west coast tree species, possessing long and strong fibers, however, the low brightness and poor bleachability of mechanical pulps from this tree have thus far limited its use to low yield Kraft pulps and lumber. The heartwood of Douglas-fir has been shown to contain a high amount of polyphenolic compounds such as dihydroquercetin and/or polymerized forms of these compounds. These compounds have been shown to undergo autooxidation, condensation, polymerization and metal chelation during either the aging of the tree or mechanical pulping of the wood, resulting in t

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21

Moreta, Justine Isabelle Lyons. "Diversity of ascomycete laccase sequences and contributions of bacteria and ascomycetous fungi to lignocellulose degradation in a southeastern U.S. salt marsh." 2002. http://purl.galileo.usg.edu/uga%5Fetd/moreta%5Fjustine%5Fi%5F200208%5Fms.

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22

Chen, You-Rong, and 陳佑鎔. "Recovery of copper from wastewater to enhance laccase activity coupled with power generation by planting white rot fungi on microbial fuel cell." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/89pn46.

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碩士<br>國立雲林科技大學<br>環境與安全衛生工程系<br>107<br>Copper is a raw material commonly used in industrial manufacturing processes. Methods to treat copper-containing wastewater can be physical, chemical, or biological. Physical and chemical approaches are common treatment technologies; however, both methods have disadvantages of high cost and secondary pollution. The conventional biological approach has the limitation of slow microbial growth. This study cultured white rot fungi (WRF) at the cathode of a single-chamber ceramic microbial fuel cell (WRF-C-MFC) to treat copper-containing wastewater. The adsorp

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23

Přenosilová, Lenka. "Biodegradace 17alfa-ethinylestradiolu enzymy ligninolytických hub." Master's thesis, 2012. http://www.nusl.cz/ntk/nusl-308243.

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This work is aimed at the study of the effect of 17α-ethinylestradiol (EE2) on the production and characteristics of ligninolytic enzymes (laccase, Mn-dependent peroxidase and lignin peroxidase) in I. lacteus, T. versicolor, P. chrysosporium and P. ostreatus cultures grown on two types of liquid media. Enzyme activity production in fungal cultures was affected by the composition of culture medium. In the case of P. chrysosporium, the addition of EE2 to the complex- medium cultures led to a MnP activity stimulation and simultaneously LiP production was partially repressed in these cultures. In

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24

Euring, Markus. "Einsatz von Mediatoren bei der enzymatischen Aktivierung der fasereigenen Bindekräfte zur Herstellung von enzymgebundenen, bindemittelfreien Holzwerkstoffen." Doctoral thesis, 2008. http://hdl.handle.net/11858/00-1735-0000-0006-B111-9.

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25

Leonhardt, Sabrina. "Auswirkungen der pilzlichen Artengemeinschaft sowie ausgewählter Pilzenzyme und physikochemischer Totholzparameter auf die Zersetzung von 13 Baumarten im Nationalpark Hainich-Dün." 2019. https://tud.qucosa.de/id/qucosa%3A70990.

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Totholz ist als wichtiges Strukturelement in Waldökosystemen und von zentraler Bedeutung für deren Funktion. Es dient zahlreichen Organismen als Lebensraum oder Substrat und ist wichtiger Bestandteil des Kohlenstoff- und Nährstoffkreislaufes. Um Totholz effizient zu zersetzen, haben saprobionte Pilze aus den Phyla der Basidiomycota und Ascomycota verschiedene ökologische und physiologische Strategien entwickelt. Die bedeutendste Rolle im Totholzabbau spielen dabei Weißfäulepilze. Sie sind in der Lage, mit ihren extrazellulären oxidativen Enzymen, wie Laccasen und verschiedenen Peroxidasen, Lig

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26

Arnstadt, Tobias. "Die Rolle oxidativer Pilzenzyme für die Totholzzersetzung und die Zersetzungsdynamik von Fagus sylvatica, Picea abies und Pinus sylvestris." Doctoral thesis, 2016. https://tud.qucosa.de/id/qucosa%3A30335.

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In Waldökosystemen ist Totholz von zentraler Bedeutung, indem es zahlreichen Organismen einen Lebensraum bietet oder als Substrat dient, Bestandteil des Kohlenstoff- und Nährstoffkreislaufs ist sowie als ein wichtiges strukturelles Element fungiert. Für seine Zersetzung ist die Überwindung der Ligninbarriere von besonderer Bedeutung. Dazu sind lediglich saprobionte Pilze aus den Phyla der Basidiomycota und Ascomycota in der Lage, die verschiedene Strategien – die Fäuletypen – entwickelt haben, um Lignin abzubauen oder zu modifizieren und somit Zugang zu den vom Lignin inkrustierten Polysachari

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27

Slavíková, Amemori Anna. "Aplikace ligninolytických hub na pevných substrátech pro degradace endokrinních disruptorů." Master's thesis, 2012. http://www.nusl.cz/ntk/nusl-305417.

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Today a lot of attention is focused on compounds called endocrine disrupters (EDs) among substances released to environment by humans. They are a group of substances which can disturb function of hormonal system of organisms including humans. Their poor removal at wastewater treatment plants (WwTP) were shown at various studies, thus they can reach the environment in water. A prospective way for the degradation of EDs at WwTP can be their removal by ligninolytic fungi. They are able to degrade lots of lignin-like aromatic substances because of their highly nonspecific enzymes. In this work gro

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Cherdchim, Banyat. "Actions of lignocellulolytic enzymes on Abies grandis(grand fir) wood for application in biofuel production." Doctoral thesis, 2010. http://hdl.handle.net/11858/00-1735-0000-0006-B138-4.

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