To see the other types of publications on this topic, follow the link: Enzymes. Enzymes Peniophora. Laccase.

Dissertations / Theses on the topic 'Enzymes. Enzymes Peniophora. Laccase'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 39 dissertations / theses for your research on the topic 'Enzymes. Enzymes Peniophora. Laccase.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Jordaan, Justin. "Isolation and characterization of a novel thermostable and catalytically efficient laccase from Peniophora sp. strain UD4." Thesis, Rhodes University, 2005. http://eprints.ru.ac.za/211/.

Full text
APA, Harvard, Vancouver, ISO, and other styles
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.

Full text
Abstract:
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)
APA, Harvard, Vancouver, ISO, and other styles
3

Obanda, Aston Martin. "The oxidation of simple and complex polyphenols by laccase." Thesis, Imperial College London, 1990. http://hdl.handle.net/10044/1/46476.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Mainardi, Pedro Henrique [UNESP]. "Produção de lacases pelo fungo filamentoso de origem marinha Peniophora sp. CBMAI 1063 em biorreator de bancada." Universidade Estadual Paulista (UNESP), 2015. http://hdl.handle.net/11449/134175.

Full text
Abstract:
Made available in DSpace on 2016-02-05T18:30:03Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-06-18. Added 1 bitstream(s) on 2016-02-05T18:34:10Z : No. of bitstreams: 1 000857369.pdf: 1913913 bytes, checksum: 2f38669e1a503f107487f09a70af3b0c (MD5)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>As lacases são enzimas que catalisam uma reação que oxida moléculas aromáticas fenólicas. Com grande potencial biotecnológico, as lacases podem ser empregadas em diversos setores industriais. Suas principais aplicações são referentes a indústria de polpa e papel, têxtil, a
APA, Harvard, Vancouver, ISO, and other styles
5

Mainardi, Pedro Henrique. "Produção de lacases pelo fungo filamentoso de origem marinha Peniophora sp. CBMAI 1063 em biorreator de bancada /." Rio Claro, 2015. http://hdl.handle.net/11449/134175.

Full text
Abstract:
Orientador: Lara Durães Sette<br>Coorientador: Rafaella Bonugli Santos<br>Banca: Luiz Henrique Souza Guimarães<br>Banca: Eleonora Cano Carmona<br>Resumo: As lacases são enzimas que catalisam uma reação que oxida moléculas aromáticas fenólicas. Com grande potencial biotecnológico, as lacases podem ser empregadas em diversos setores industriais. Suas principais aplicações são referentes a indústria de polpa e papel, têxtil, alimentícia, bem como na química sintética e biorremediação. Em estudos prévios, o fungo basidiomiceto Peniophora sp. CBMAI 1063, isolado da esponja marinha Amphimedon viridi
APA, Harvard, Vancouver, ISO, and other styles
6

Zaccaria, Simone. "Concentração, formulação e caracterização de extratos enzimáticos de lacases produzidas por Pleurotus sajor-caju PS-2001 em processo submerso." reponame:Repositório Institucional da UCS, 2017. https://repositorio.ucs.br/handle/11338/3446.

Full text
Abstract:
Submitted by cmquadros@ucs.br (cmquadros@ucs.br) on 2018-02-02T10:31:31Z No. of bitstreams: 1 Dissertacao Simone Zaccaria.pdf: 993465 bytes, checksum: 0a1335797da601a4322d237b9b0aee3a (MD5)<br>Made available in DSpace on 2018-02-02T10:31:31Z (GMT). No. of bitstreams: 1 Dissertacao Simone Zaccaria.pdf: 993465 bytes, checksum: 0a1335797da601a4322d237b9b0aee3a (MD5) Previous issue date: 2018-02-01<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, CAPES
APA, Harvard, Vancouver, ISO, and other styles
7

Haynes, Kaaren K. "Physical properties of laccase-mediator delignified pulps." Diss., Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/5884.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Bertrand, Thomas. "Etude structurale et fonctionnelle d'enzymes : la cytidine monophosphate kinase d'Escherichia coli, la laccase de Trametes versicolor, et la désoxyribose mutarotase de Salmonella typhimurium." Paris 6, 2002. http://www.theses.fr/2002PA066036.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Lanteigne, Roch Lisa-Marie. "Utilisation des enzymes lipase et laccase pour améliorer la blancheur d'une pâte désencrée de papier journal." Thèse, Université du Québec à Trois-Rivières, 2010. http://depot-e.uqtr.ca/2005/1/030140241.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Chakar, Fadi S. "Fundamental delignification chemistry of laccase-mediator systems on high-lignin-content kraft pulps." Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/7017.

Full text
APA, Harvard, Vancouver, ISO, and other styles
11

Lalaoui, Noémie. "Réduction bioélectrocatalytique du dioxygène par des enzymes à cuivres connectées sur des électrodes nanostructurées et fonctionnalisées : intégration aux biopiles enzymatiques." Thesis, Université Grenoble Alpes (ComUE), 2015. http://www.theses.fr/2015GREAI110/document.

Full text
Abstract:
Dans la nature, la réduction du dioxygène est catalysée par des enzymes de la famille des oxydoréductases. A l’heure actuelle, ces protéines spécifiques et efficaces sont envisagés comme biocatalyseurs au sein de biopile enzymatique. Dans ce contexte, l’optimisation de l’orientation et de la connexion d’oxydases multi-cuivre (MCOs) pour la réduction d’O2 sur des matrices de nanotubes carbone (CNTs) fonctionnalisées a été étudiée. Dans un premier temps, le transfert électronique direct de la laccase est optimisé par la fonctionnalisation non covalente de CNTs par divers dérivés hydrophobes. La
APA, Harvard, Vancouver, ISO, and other styles
12

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

Full text
Abstract:
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
APA, Harvard, Vancouver, ISO, and other styles
13

Cotignoli, Matteo. "Preparation and assessment of immobilized laccase-based micro- and nanocatalysts for the degradation of anthropogenic compounds." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019.

Find full text
Abstract:
Since the dawn of its presence on earth, the human being has been able to exploit the enzymes for its subsistence. More recent is the meeting between the enzymatic processes and the urgent need for technologies that aim to preserve our planet. In this field nowadays enzymatic catalysis is tested either to depollution/remediation as well as waste disposal. The work presented in this thesis, regarding both these two topics, is tailored on two European projects (EU 2020), MADFORWATER and TERMINUS respectively. Firstly, production of micro- and nanocatalysts via immobilization of laccases (a lign
APA, Harvard, Vancouver, ISO, and other styles
14

Batistela, Daniela Moraes. "Estudo da atividade e estabilidade de lacases em líquidos iônicos." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/46/46136/tde-26052011-120524/.

Full text
Abstract:
Neste trabalho foram estudadas a atividade e a estabilidade de lacases dos fungos Coriolus hirsutus e Trametes versicolor em meio aquoso contendo líquidos iônicos (LI) como co-solventes, com o objetivo de se obter informações sobre os efeitos desses solventes na atividade enzimática. Foi avaliado o efeito de onze LI (cátions: tetrabutilamônio, 1-butil-3-metilpiperidina e 1-alquil-3-metilimidazólios; combinados com ânions: brometo, cloreto, metilsulfato, metanossulfonato e tetrafluorborato) em diferentes frações molares em meio aquoso tamponado com ácido acético (0,1 mol L-1, pH 4,7 e 25 &#176;
APA, Harvard, Vancouver, ISO, and other styles
15

Faria, Robson de Almeida. "Estudo da produção de enzimas ligninolíticas por Ceriporiopsis subvermispora." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/97/97132/tde-25102012-133856/.

Full text
Abstract:
Este trabalho compreendeu estudar e definir as condições de cultivo que maximizam a produção de manganês peroxidases (MnPs) e lacases (Lacs) por C. subvermispora, fungo de degradação branca da madeira envolvido em processos industriais de biopolpação. O estudo envolveu cultivos submersos, em superfície ou com micélio imobilizado em espuma de poliuretano em meios complexo ou definido, e cultivos imobilizados em meio definido nos quais foram avaliados os efeitos: de diferentes concentrações de Mn2+, dos indutores 2,5-xilidina e álcool veratrílico, e do surfactante Tween 80, que levaram a diferen
APA, Harvard, Vancouver, ISO, and other styles
16

Parra, Guardado Ana Luisa. "Dégradation enzymatique de micropolluants récalcitrants d'origine pharmaceutique." Thesis, Montpellier, 2019. http://www.theses.fr/2019MONTG013/document.

Full text
Abstract:
Ce travail concerne l'étude de la dégradation enzymatique de micropolluants pharmaceutiques récalcitrants présents dans l'eau. Tout d’abord, les efficacités de trois laccases différentes issues respectivement de : Pycnoporus sanguineus CS43, Trametes versicolor (Tv) et Myceliophtora thermophila ont été comparés lors d’essais de dépollution de solutions modèles renfermant trois antibiotiques (amoxicilline, ciprofloxacine et sulfaméthoxazole) et un antiépileptique (carbamazépine). Les essais ont été réalisés avec les laccases libres en présence ou non de médiateurs redox. L'impact de plusieurs p
APA, Harvard, Vancouver, ISO, and other styles
17

Chandra, Richard P. "Chemo-enzymatic modification of high-kappa kraft pulps with laccase." Diss., Available online, Georgia Institute of Technology, 2005, 2003. http://etd.gatech.edu/theses/available/ipstetd-1011/.

Full text
APA, Harvard, Vancouver, ISO, and other styles
18

Strong, Peter James. "Fungal remediation of winery and distillery wastewaters using Trametes pubescens MB 89 and the enhanced production of a high-value enzyme therein." Thesis, Rhodes University, 2008. http://hdl.handle.net/10962/d1003991.

Full text
Abstract:
In this study white-rot fungi were investigated for their efficiency at distillery wastewater remediation and the production of laccase as a valuable by-product. Distillery wastewaters are high in organic load and low in pH. The presence of phenolic compounds can lead to extremely colour-rich wastewaters and can be toxic to microorganisms. The presence of the inorganic ions may also affect biological treatment. White-rot fungi are unique among eukaryotic or prokaryotic microbes in possessing powerful oxidative enzyme systems that can degrade lignin to carbon dioxide. These ligninolytic enzymes
APA, Harvard, Vancouver, ISO, and other styles
19

Heath, Rachel Sarah. "Studies of a 'blue' copper oxidase electrocatalyst." Thesis, University of Oxford, 2008. http://ora.ox.ac.uk/objects/uuid:e8359408-d3d4-4fe3-910a-cc69265a1546.

Full text
Abstract:
This thesis concerns the electrochemical investigation of high-potential laccases. These multicopper oxidases are efficient electrocatalysts for the dioxygen reduction reaction. A method for stabilising laccase on a graphite electrode was established. The method involved modification of the graphite surface by diazonium coupling of a 2-anthracene molecule. A laccase ‘film’ adsorbed on this modified surface remained stable for over two months and, typically, the current density for dioxygen reduction was doubled compared to a laccase ‘film’ on an unmodified surface. Protein film voltammetry was
APA, Harvard, Vancouver, ISO, and other styles
20

Npetgat, Ngoutane Eloïne Arlette. "Elaboration de biocatalyseurs artificiels à deux composantes." Thesis, Aix-Marseille, 2012. http://www.theses.fr/2012AIXM4354.

Full text
Abstract:
Depuis quelques années on assiste au développement de nouveaux bio-catalyseurs qui sont des hybrides combinant les avantages de la catalyse organométallique (système robustes, efficaces, mais couteux) à ceux de la catalyse enzymatique (écologique, spécifique mais peu flexible). Parmi les différentes stratégies mises en œuvre pour créer des enzymes artificielles, aucune d'elles n'a jusqu'à présent véritablement envisagé d'utiliser l'activité d'une enzyme et de la combiner à celle d'un composé organique. C'est la nouvelle approche proposée dans ce travail pour tenter d'orienter l'activité cataly
APA, Harvard, Vancouver, ISO, and other styles
21

Zouari, Nabil. "Étude des laccases de Sporotrichum pulverulentum et de Botrytis cinerea : mise en œuvre d'une électrode à laccase et d'une méthode pour l'estimation de la qualité sanitaire du raisin." Compiègne, 1986. http://www.theses.fr/1986COMPI233.

Full text
Abstract:
Les phénomènes d'induction et sécrétion de laccase chez Sporotrichum pulverulentum semblent très complexes, alors que chez Botrytis cinerea, la production de laccase est plus simple. Deux formes de laccase secrétées par la même souche de Botrytis cinerea sont mises en évidence par D. E. A. E. Cellulose. Elles montrent des ressemblances étroites, mais leurs thermostabilités et leur pouvoir oxydant sur les produits phénoliques sont différents. Une électrode à laccase basée sur la laccase immobilisée et possédant toutes les potentialités de dosage sélectif de produits phénoliques spécifiques est
APA, Harvard, Vancouver, ISO, and other styles
22

Merle, Géraldine. "Conception d'électrodes enzymatiques pour l'élaboration de biopiles glucose/oxygène." Montpellier 2, 2008. http://www.theses.fr/2008MON20181.

Full text
Abstract:
Les biopiles enzymatiques (BFC) capable de convertir le glucose en électricité ont une importance significative comme source d'énergie implantable dans l'organisme. Une BFC consiste en deux bioélectrodes modifiées par l'immobilisation d'enzymes. Le glucose est oxydé à l'anode par la glucose oxydase et l'oxygène est réduit à la cathode grâce à la laccase ou bilirubine oxydase en présence de médiateurs spécifiques. Le procédé d'oxydation et de réduction concomitant aux électrodes produit un courant électrique. Toutefois, deux problèmes doivent être réglés, avant que ces dispositifs puissent être
APA, Harvard, Vancouver, ISO, and other styles
23

Harguindeguy, Marine. "Développement de supports d’immobilisation biosourcés pour la dégradation enzymatique de micro polluants dans un réacteur à lit fluidisé." Thesis, Montpellier, 2020. http://www.theses.fr/2020MONTG023.

Full text
Abstract:
Ce travail de thèse a pour objectif l’élaboration de supports d’immobilisation d’enzymes bio sourcés en vue de la dégradation de micropolluants dans l’eau. Des billes de gélatine de diamètre moyen 1,9 mm ont été formées dans ce but par un procédé de goutte à goutte n’employant aucun solvant organique. La réticulation des billes par le glutaraldéhyde permet d’une part de limiter le gonflement de ce polymère dans l’eau et d’améliorer sa tenue mécanique en immersion, et d’autre part de créer des liaisons covalentes entre la gélatine et la laccase. Un plan d’expérience 2^4 a été réalisé afin d’ide
APA, Harvard, Vancouver, ISO, and other styles
24

Zeyer, Estelle. "Inhibition de la mélanose post-mortem chez la crevette Penaeus monodon : Étude des activités enzymatiques phénoloxydases et recherche de conservateurs alternatifs aux sulfites." Thesis, Littoral, 2018. http://www.theses.fr/2018DUNK0477/document.

Full text
Abstract:
Le bruissement enzymatiques, appelé mélanose post mortem chez les crustacés est un phénomène enzymatique catalysé par des protéines à activités phénoloxydases (tyronase, catécholase, laccase et hémocyanine). L'utilisation de conservateurs de type sulfites (E220 à E228 et E539) reste à l'heure actuelle la solution la plus répandue pour éviter le développement de cette coloration peu attrayante pour le consommateur. Mais une partie de la population développe des réactions d'hypersensibilité en consommant des aliments sulfités. Dans l'onbjectif de rechercher une alternative à ces conservateurs, d
APA, Harvard, Vancouver, ISO, and other styles
25

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.

Full text
Abstract:
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
APA, Harvard, Vancouver, ISO, and other styles
26

Singh, Kulveer. "Structure-function studies of the oxidoreductase bilirubin oxidase from Myrothecium verrucaria using an electrochemical quartz crystal microbalance with dissipation." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:0376cc7e-f572-4e0c-96f0-43b0b4b91d99.

Full text
Abstract:
This thesis presents the development and redesign of a commercial electrochemical quartz crystal microbalance with dissipation (E–QCM–D). This was used to study factors affecting the efficiency of the four electron reduction catalysed by the fuel cell enzyme bilirubin oxidase from Myrothecium verrucaria immobilised on thiol modified gold surfaces. Within this thesis, the E–QCM–D was used to show that application of a constant potential to bilirubin oxidase adsorbed to thiol-modified gold surfaces causes activity loss that can be attributed to a change in structural arrangement. Varying the loa
APA, Harvard, Vancouver, ISO, and other styles
27

Maphupha, Mudzuli Maxwell. "Application of laccase enzymes in organic synthesis." Thesis, 2018. https://hdl.handle.net/10539/26057.

Full text
Abstract:
A dissertation submitted to the Faculty of Science, University of the Witwatersrand, Johannesburg, in fulfilment of requirements for the degree of Master of Science. Johannesburg, 2018.<br>The use of enzymes as catalysts in various synthetic procedures appears to be an economical and profound way of providing selective processes in synthetic organic chemistry. Enzymes provide alternative and sustainable processes and have helped to avoid limitations encountered when using traditional heterogeneous and homogeneous catalysts; this includes the use of toxic substances, use of expensive heavy meta
APA, Harvard, Vancouver, ISO, and other styles
28

"A post-genomic study of Lentinula edodes laccases: from basic sciences to potential applications and molecular engineering." 2012. http://library.cuhk.edu.hk/record=b5549394.

Full text
Abstract:
擔子菌的漆酶以及其漆酶介體系統(LMSs)均是具廣泛『色』應用的多功能生物催化劑,能應用於生物修和生物製等方面。可惜缺乏酶的源及簡單的表達平臺、各界一致的酶學研究方法、以及清晰的分子進化方向均是進一步應用及研究漆酶的當前挑戰。本研究以香菇的基因組序為依歸,逐一克服以上的漆酶問題。首先本研究從香菇的基因組中別出漆酶家族,並從其菌絲克出同工酶(共十個同工酶及個等位基因變體)。然後以畢赤酵母建一個穩健的源表達平臺,用以產出五個重組漆酶(Lcc1A、Lcc1B、Lcc4A、Lcc5和Lcc7)。Lcc1A 和Lcc1B 的試點研究首先提供標準化的酶測試方法,以供比較各重組酶在酶學及應用層面上的效能。結果發現Lcc1A 及其LMSs 能最有效地生物解合成染和多環芳烴,亦能把經蒸汽預處的軟木的酶化效能提高37%至46%。2,2'-氮雙(3-乙基苯並噻唑啉-6-磺酸)二銨鹽(ABTS)是最常用於篩選漆酶的基準底物。然而Lcc7 對此基準底物的活性才是眾重組酶中最高(比Lcc1A 高七倍)。鑒於這些重組漆酶對ABTS 和應用性底物活性的一致,我們有需要找出另一種具指標性的基準底物驅動真菌漆酶的蛋白質工程。本研究用相關係分析發現愈創木酚比ABTS 和2,6-二甲氧基苯酚這種常用的基準底物,能有效反映漆酶解合成染的能。氨基酸序分析進一步顯示出可能影響重組漆酶特性的保守基序和底物結合位置的氨基酸殘基。本
APA, Harvard, Vancouver, ISO, and other styles
29

"Investigation of GDH/laccase enzymes for bio-energy generation." 2009. http://library.cuhk.edu.hk/record=b5896902.

Full text
Abstract:
Chau, Long Ho.<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 2009.<br>Includes bibliographical references (leaves 73-82).<br>Abstract also in Chinese.<br>ABSTRACT --- p.III<br>摘要 --- p.IV<br>PUBLICATIONS CORRESPOND TO THIS THESIS --- p.V<br>ACKNOWLEDGEMENTS --- p.VI<br>TABLE OF CONTENTS --- p.VII<br>LIST OF FIGURES --- p.IX<br>LIST OF TABLES --- p.XI<br>ABBREVIATIONS AND NOTATIONS --- p.XII<br>Chapter CHAPTER 1 --- INTRODUCTION --- p.1<br>Chapter 1.1 --- Background --- p.1<br>Chapter 1.1.1 --- Types of Biofuel Cells --- p.1<br>Chapter 1.1.2 --- Properties of Using Enzymes in
APA, Harvard, Vancouver, ISO, and other styles
30

Garcia, Hector A. "Enzymes : the new water/wastewater treatment chemical." Thesis, 2011. http://hdl.handle.net/2152/ETD-UT-2011-05-2807.

Full text
Abstract:
Pharmaceuticals and personal care products (PPCPs) are detected routinely in raw and treated municipal wastewater. Conventional wastewater treatment processes are not effective in removing PPCP; therefore, treated wastewater discharges are one of the main entry points for PPCPs into the aquatic environment, and eventually into drinking water supplies. The use of laccase-catalyzed oxidation for removing low concentrations of PPCPs from municipal wastewater after primary treatment is investigated. Oxybenzone was selected as a representative PPCP. Like many other PPCPs, oxybenzone is not reco
APA, Harvard, Vancouver, ISO, and other styles
31

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.

Full text
APA, Harvard, Vancouver, ISO, and other styles
32

"A study on the pollutant pentachlorophenol-degradative genes and enzymes of oyster mushroom Pleurotus pulmonarius." 2002. http://library.cuhk.edu.hk/record=b5891195.

Full text
Abstract:
by Wang Pui.<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 2002.<br>Includes bibliographical references (leaves 115-128).<br>Abstracts in English and Chinese.<br>Acknowledgments --- p.i<br>Abstract --- p.ii<br>List of Figures --- p.vi<br>List of Tables --- p.viii<br>Abbreviations --- p.ix<br>Chapter 1. --- Introduction Pg no<br>Chapter 1.1 --- Ligninolytic enzyme systems --- p.1<br>Chapter 1.2 --- Three main ligninolytic enzymes --- p.3<br>Chapter 1.2.1 --- Lignin peroxidases (LiP) --- p.3<br>Chapter 1.2.2 --- Gene structure and Amino acid sequence structure --- p.7<br>Chapter
APA, Harvard, Vancouver, ISO, and other styles
33

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.

Full text
Abstract:
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
APA, Harvard, Vancouver, ISO, and other styles
34

Dwivedi, Ravi Chandra. "Extracellular proteins from lignocellulose degrading Basidiomycetes: Redox enzymes from Trametes versicolor and Coprinopsis cinerea." Doctoral thesis, 2006. http://hdl.handle.net/11858/00-1735-0000-0006-B0F9-7.

Full text
APA, Harvard, Vancouver, ISO, and other styles
35

Waung, Debbie. "Optimizing Enzymatic Preparations of Mechanical Pulp Through the Characterization of New Laccases and Non-productive Interactions Between Enzymes and Lignin." Thesis, 2010. http://hdl.handle.net/1807/25508.

Full text
Abstract:
The overall objective of this research is to identify and optimize enzymatic applications that have the potential to degrade middle lamella lignin, so as to decrease economic and environmental costs associated with the production of mechanical pulp. Non-productive binding of enzyme to lignin in lignocellulosic biomass reduces enzyme availability and efficiency. The elucidation of non-productive binding behavior between hydrolytic enzymes and lignocellulosic substrates could significantly improve the efficiency of corresponding industrial bioprocesses. The first part of this report presents a s
APA, Harvard, Vancouver, ISO, and other styles
36

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.

Full text
APA, Harvard, Vancouver, ISO, and other styles
37

Gusetu, Georgiana. "Développement d’un microréacteur à base d’enzyme microencapsulée en vue d’un couplage en ligne à un système d’électrophorèse capillaire." Thèse, 2010. http://hdl.handle.net/1866/4996.

Full text
Abstract:
L’objectif principal de ce projet de recherche est d’étudier l’efficacité de la microencapsulation, technique d’immobilisation d’enzymes utilisée pour la réalisation des nouveaux biocapteurs électrochimiques. Généralement, l’analyte d’intérêt produit ou consomme des électrons, et la réponse électrochimique est mesurée, afin d’identifier ou quantifier l’analyte. Dans le développement d’un biocapteur, il est désirable de quantifier la conversion du substrat (analyte) et/ou la formation de produit de réaction enzymatique. Les similarités structurales entre le substrat et le produit de réaction da
APA, Harvard, Vancouver, ISO, and other styles
38

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.

Full text
APA, Harvard, Vancouver, ISO, and other styles
39

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

Full text
Abstract:
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
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!