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Relevant bibliographies by topics / Cellulose degradation / Dissertations / Theses

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Dissertations / Theses on the topic 'Cellulose degradation'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Wilsby, Astrid. "Insight in cellulose degradation." Thesis, KTH, Fiber- och polymerteknologi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-302670.

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I strävan efter att minska textilindustrins omfattande miljöpåverkan utvecklas nya metoder för textilåtervinning. Idag återvinns bomullstyg av Renewcell på deras anläggning i Kristinehamn. Den återvunna produkten, Circulose®, är en dissolvingmassa som kan användas för att spinna nya viskosfibrer som man i sin tur kan använda för att göra nya kläder. Föreliggande arbete är en förstudie om möjligheten att optimera Renewcellls återvinningsprocess. Arbetet inkluderar en optimering av massaprocessen vilket resulterar i en mer effektiv process som minskar förbrukningen av processkemikalier.<br>To re

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2

Johansson, Erik. "Free radical mediated cellulose degradation." Doctoral thesis, KTH, Chemistry, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3477.

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<p>This thesis addresses the mechanisms involved in cellulosedegradation in general and Totally Chlorine Free (TCF) bleachingof pulp in particular. The thesis shows that the cellulosedegradation during high consistency ozone bleaching is explainedby free radical chain reactions.</p><p>By simulation, it has been shown that the number, weight andviscosity average of liner polymer chain length can be used tocalculate the number of random scissions in a linear polymer ofany molecular weight distribution, provided that there is acalibrated Mark-Houwink equation. A model describing partialdegradatio

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3

Johansson, Erik E. "Free radical mediated cellulose degradation /." Stockholm : Department of Chemistry, Nuclear Chemistry, Royal Institute of Technology, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3477.

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4

Nutt, Anu. "Hydrolytic and Oxidative Mechanisms Involved in Cellulose Degradation." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Universitetsbiblioteket [distributör], 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-6888.

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5

Du, Plessis Lisa. "Co-expression of cellulase genes in Saccharomyces cerevisiae for cellulose degradation." Thesis, Link to the online version, 2008. http://hdl.handle.net/10019/1818.

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6

Vladut-Talor, Monica. "Cellulose degradation by a Cellulomonas species." Thesis, University of Ottawa (Canada), 1986. http://hdl.handle.net/10393/5454.

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7

Samios, Eleftherios. "The microbial degradation of cellulose acetate." Thesis, Loughborough University, 1995. https://dspace.lboro.ac.uk/2134/11195.

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Cellulose acetate is a chemical of great industrial importance. Its uses range from the manufacture of textiles to cigarette filters. Cellulose acetate is not biodegraded easily. The aim of this project was to identify, micro-organisms that would attack cellulose acetate and to propose a possible mechanism for the biodegradation process. Discarded cigarette filters were taken from the street and they were plated onto Sabouraud medium, a selective medium for fungi. The growth observed was on the outside of the filters. The middle portion of discarded cigarette filters was opened asceptically, a

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8

Liu, Chao-Kuo. "Cellulose degradation system of Cytophaga hutchinsonii." Thesis, University of Edinburgh, 2012. http://hdl.handle.net/1842/7657.

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In this project, Cytophaga hutchinsonii, an aerobic gliding bacterium with cellulose-degrading ability, was studied, since its cellulase system was unknown and might be very different from those of other cellulose-degrading species. Only ß-1,4- endoglucanases and non-specific ß-glucosidases were found in the C. hutchinsonii genome sequence, whereas specific exoglucanases were apparently absent. Almost all putative cellulases were composed of catalytic domains only, without carbohydrate-binding modules. Samples from C. hutchinsonii cultures were analyzed by using TLC and colorimetric assays. Gl

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9

Lakhundi, Sahreena Saleem. "Synthetic biology approach to cellulose degradation." Thesis, University of Edinburgh, 2012. http://hdl.handle.net/1842/9887.

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Cellulose, the most abundant biopolymer on earth, is composed of β – 1,4 – linked glucose units, which in turn form a highly ordered crystalline structure that is insoluble and recalcitrant to degradation. It is the world’s most attractive, abundant and renewable energy resource, representing the bioconversion of carbon dioxide into green plants. Cellulosic biomass, such as agricultural and forestry residues, waste paper and industrial waste can therefore be used as an inexpensive and abundantly available source of sugar for fermentation into fuel ethanol. The combustion of biofuels releases c

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10

Rout, Simon Peter. "Biodegradation of anaerobic, alkaline cellulose degradation products." Thesis, University of Huddersfield, 2015. http://eprints.hud.ac.uk/id/eprint/28314/.

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The proposed strategy for the disposal of the United Kingdom’s nuclear waste inventory is placement within a deep geological disposal facility (GDF). The prevailing conditions of a GDF are expected to be anaerobic, with alkaline conditions (10.5 < pH > 13) over a long timescale. In these anaerobic, alkaline conditions the cellulosic components of intermediate level wastes are expected to degrade, with the major products being the α- and β-forms of isosaccharinic acid (ISA). ISAs have received particular attention because of their ability to form complexes with radionuclides, potentially influe

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11

Heath, Charlotte Rebecca. "Interactions of radionuclides with cellulose degradation products." Thesis, Loughborough University, 2008. https://dspace.lboro.ac.uk/2134/11676.

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The aim of this work was to determine the solubility of radionuclides in solutions of cellulose degradation products (CDP) and isosaccharinic acid (ISA) the main product of cellulose degradation. Thorium was the main radionuclide investigated as the solubility of tetravalent actinides in the near field of a nuclear waste repository at high pH and low Eh has been shown to increase in the presence of such ligands. The measurement of thorium solubility was achieved by using different methods e.g. liquid scintillation counting, gamma spectrometry, ICP-MS and ICP-OES. ICP-OES was shown to be the mo

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12

Ubhayasekera, Wimal. "Structural studies of cellulose and chitin active enzymes /." Uppsala : Dept. of Molecular Biology, Swedish University of Agricultural Sciences, 2005. http://epsilon.slu.se/200518.pdf.

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13

Gentile, Victor M. "Effects of physical structure on the alkaline degradation of hydrocellulose." Diss., Georgia Institute of Technology, 1986. http://hdl.handle.net/1853/5655.

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14

Edge, Michele. "The degradation and stabilisation of cellulose triacetate cinematograph film." Thesis, Manchester Metropolitan University, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.254682.

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15

Stewart, Robert A. "Analytical studies of the degradation of cellulose nitrate artefacts." Thesis, University of Strathclyde, 1997. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=21503.

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The deterioration of cellulose nitrate artefacts in museum and art collections is a complex problem facing conservators and conservation scientists. This study has looked at several aspects of the degradation by analysing artefacts and model samples. Initial work concentrated on a survey of a collection of artefacts, many of which showed active degradation, by visual inspection and FTTR spectroscopy. A more thorough analysis of the artefacts was carried out, using ion chromatography, xray fluorescence spectroscopy and atomic absorption spectroscopy, to identify compositional differences betwee

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16

Williamson, Diana Michelle. "The degradation of cellulose acetate base motion picture film." Thesis, Manchester Metropolitan University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.359295.

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The natural degradation of processed black and white cellulose acetate based 35mm motion picture film material has been investigated using 1H and 13C NMR spectroscopy. According to current standards only this material is considered to be an archival recording medium. It has been recognised that understanding the relationship between structure and physical properties would provide knowledge to help inhibit motion picture film degradation. A correlation between observed changes in molecular structure and physical property changes namely, % moisture regain, acidity and viscosity has been obtained

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17

Hamrang, Abbas. "Degradation and stabilisation of cellulose based plastics & artifacts." Thesis, Manchester Metropolitan University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240556.

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Aspects of the degradation of cellulose-based plastics have been studied, with work concentrating on cellulose nitrate and cellulose acetate. Because prior history of the majority existing cellulose-ester based artifacts was unknown, a range of samples were fully characterised and used as controls for subsequent ageing studies. The initial part of the work concentrated on an evaluation of relative rates of degradation when the esters were subjected to various temperatures and relative humidities in the presence and absence of light. Viscometric methods were employed to determine changes in mol

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18

GLANDON, ALEXANDRA. "CELLULOSE DEGRADATION IN LUTEIBACTER: SUSPECTED GENETIC MECHANISMS AND BIOCHEMICAL APPLICATIONS." Thesis, The University of Arizona, 2016. http://hdl.handle.net/10150/612981.

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The role of Luteibacter as a cellulose degradation microorganism is examined in this thesis. An overview of some of the key functions of cellulose in the biosphere is given as well as a review of cellulolytic strategies and mechanisms employed in the microscopic world. A brief characterization of the genus Luteibacter is also provided. Experiments were aimed at evaluating loss of function cellulase mutants and abnormal phenotypic mutants in order to better characterize potential genetic pathways used by Luteibacter in cellulose degradation. While there is still much work to be done evaluating

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19

Bansal, Prabuddha. "Computational and experimental investigation of the enzymatic hydrolysis of cellulose." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/42773.

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The enzymatic hydrolysis of cellulose to glucose by cellulases is one of the major steps in the conversion of lignocellulosic biomass to biofuel. This hydrolysis by cellulases, a heterogeneous reaction, currently suffers from some major limitations, most importantly a dramatic rate slowdown at high degrees of conversion in the case of crystalline cellulose. Various rate-limiting factors were investigated employing experimental as well as computational studies. Cellulose accessibility and the hydrolysable fraction of accessible substrate (a previously undefined and unreported quantity) were sho

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20

Kaylor, Rosann Matthews. "The high-temperature, alkaline degradation of a new cellulose model compound." Thesis, Georgia Institute of Technology, 1994. http://hdl.handle.net/1853/27286.

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21

Morales, Silva Maria Sol. "Role of ionized calcium and magnesium in cellulose degradation by ruminal bacteria." Connect to this title online, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1117564294.

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Thesis (Ph. D.)--Ohio State University, 2005.<br>Title from first page of PDF file. Document formatted into pages; contains xvii, 163 p.; also includes graphics (some col.) Includes bibliographical references (p. 149-163). Available online via OhioLINK's ETD Center

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22

Berggren, Rickard. "Cellulose degradation in pulp fibers studied as changes in molar mass distributions." Doctoral thesis, KTH, Fibre and Polymer Technology, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3499.

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<p>In this thesis, size-exclusion chromatography (SEC) of woodpolymers dissolved in lithium chloride/N,N-dimethylacetamide(LiCl/DMAc) has been used to characterize the molar massdistributions (MMD) of wood polymers in pulp fibers afterchemical degradation.</p><p>Characterization of birch kraft pulps subjected to ozonedegradation and acid hydrolysis, respectively, rendereddifferent changes in the MMD. Ozone degradation resulted inlarge redistributions of the original MMD, observed as thedevelopment of a distinct fraction of cellulose withintermediate molar mass. Acid hydrolysis resulted in mino

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23

Bassil, Naji Milad. "Cellulose degradation under alkali conditions, representative of cementitious radioactive waste disposal sites." Thesis, University of Manchester, 2015. https://www.research.manchester.ac.uk/portal/en/theses/cellulose-degradation-under-alkali-conditions-representative-of-cementitious-radioactive-waste-disposal-sites(230809e2-41df-43fe-bfc3-a0a1f36a6f67).html.

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Deep geological disposal in a multibarrier cementitious facility is being developed by a number of countries for the safe, long-term disposal of intermediate-level radioactive wastes. Intermediate-level radioactive waste, which dominates the radioactive waste inventory in the United Kingdom on a volumetric basis, is a heterogeneous wasteform that contains organic materials including cellulosic materials, encased in concrete. Under the alkaline conditions expected in the cementitious geological disposal facility (GDF), these materials will undergo abiotic, chemical hydrolysis, and will produce

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24

Li, Yan. "Studies on Cellulose Hydrolysis and Hemicellulose Monosaccharide Degradation in Concentrated Hydrochloric Acid." Thèse, Université d'Ottawa / University of Ottawa, 2014. http://hdl.handle.net/10393/31151.

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Given the volatile, generally high price of crude oil, as well as environmental concerns associated with its use as a fuel, development of alternative energy sources is currently of considerable interest. Lignocellulose-derived energy has the potential to supplant traditional fossil fuels in the future because of its economic and environmental advantages. Lignocellulosic biomass is abundant and renewable. Lignocellulose is primarily composed of cellulose, hemicellulose and lignin, which can be converted by acid hydrolysis to simple sugars used in fermentation to produce biofuels. In this stud

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25

Johansen, Karin Bonde. "Effect of washing of cellulose triacetate films with different degrees of degradation." Connect to PDF file, 2004. http://www.dfi.dk/NR/rdonlyres/2E5738B1-6FAA-45D6-9D93-AEE4C26020BC/0/specialeKarin.pdf.

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Thesis (masters)--Royal Danish Academy of Fine Arts, School of Conservation, 2007.<br>Title from PDF title page (viewed on Feb. 20, 2009). "Keywords: Aqueous treatment, 35 mm b/w motion picture film, cellulose triacetate, Water-Leach Free Acidity Test, AFT-FTIR, shrinkage measurements, titration with NaOH, autocatalytic point; the vinegar syndrome"--P. ix. Includes bibliographical references (p. 93-97).

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26

Maijala, Pekka. "Heterobasidion annosum and wood decay : enzymology of cellulose, hemicellulose, and lignin degradation." Helsinki : University of Helsinki, 2000. http://ethesis.helsinki.fi/julkaisut/mat/bioti/vk/maijala/.

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27

Kane, Steven Daniel. "Degradation of cellulosic material by Cellulomonas fimi." Thesis, University of Edinburgh, 2015. http://hdl.handle.net/1842/10049.

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The world stocks of fossil fuels are dwindling and may be all but out before the end of the century. Despite this there is increasing demand for them to be used for transport, and the ever increasing green house gases which their use produces. Renewable and less environmentally damaging forms of fuel are needed. Biofuels, particularly bioethanol, are a possibility to subsidise or replace fossil fuels altogether. Ethanol produced from fermentation of starch sugars from corn are already in wide use. As this bioethanol is currently produced from crops such as corn and sugar cane, that puts fuel c

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28

Liu, Bing-Lan. "Physico-chemical studies on cellobiose oxidase from Phanerochaete chrysosporium." Thesis, University of Essex, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.261161.

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29

Guan, Xin. "Fabrication of Poly-Lactic Acid (PLA) Composite Films and Their Degradation Properties." University of Toledo / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1333779869.

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30

Yesuf, Jemil N. "EVALUATION OF CELLULOLYTIC ENZYMES FROM A NEWLY ISOLATED BREVIBACILLUS SP. JXL; AND OPTIMIZATION OF COSLIF PRETREATMENT VARIABLES OF SWEET SORGHUM BAGASSE USING A RESPONSE SURFACE METHOD." OpenSIUC, 2012. https://opensiuc.lib.siu.edu/dissertations/515.

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The first part of the dissertation presented a potentially novel aerobic, thermophilic, and cellulolytic bacterium identified as Brevibacillus sp. Strain JXL which was isolated from swine waste. Strain JXL can utilize a broad range of carbohydrates including: cellulose, carboxymethylcellulose (CMC), xylan, cellobiose, glucose, and xylose. In two different media supplemented with crystalline cellulose and CMC at 57°C under aeration, strain JXL produced a basal level of cellulases as FPU of 0.02 IU/ml in the crude culture supernatant. When glucose or cellobiose was used besides cellulose, cellul

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31

Shaw, Paul B. "Studies of the alkaline degradation of cellulose and the isolation of isosaccharinic acids." Thesis, University of Huddersfield, 2013. http://eprints.hud.ac.uk/id/eprint/19266/.

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Cellulosic materials are expected to form a significant proportion of the waste proposed for disposal in underground repositories being designed for the storage of radioactive waste. Under the alkaline conditions of these facilities, cellulose degrades by a so called „peeling‟ reaction resulting in the production of a complex mixture of products (CDPs), the major components being α- and β isosaccharinic acid (α and β-ISA). A significant amount of research has been performed on ISA as part of the safety assessment for the development of these underground repositories due to the ability of ISA t

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32

Fischer, Martin. "Polymeranaloge Carbanilierung von Cellulose." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2004. http://nbn-resolving.de/urn:nbn:de:swb:14-1106412216968-39405.

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Characterization of cellulose by its molecular weight distribution is afforded after polymeranalogeous dissolution. Additionally, a molecular dispersion of the polymer is a prerequisite. Common processes are dissolution of cellulose in dimethylacetamide-lithiumchloride, nitration and carbanilation. Degradation of the polysaccharide chains can occur in each of the mentioned processes. It is shown that degradation in pyridine occurs via beta-elimination at carbonyl groups along the cellulose chains. Carbanilierung in DMSO is much more pronounced. It comprises oxidation along the Pfitzner-Moffatt

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33

Rajangam, Alex S. "Functional genomics of wood degradation and biosynthesis." Licentiate thesis, Stockholm, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-592.

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34

Grepinet, Olivier. "Caracterisation de genes de clostridium thermocellum impliques dans la degradation de la cellulose et du xylane." Paris 7, 1988. http://www.theses.fr/1988PA077066.

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35

King, Janice E. "Effect of pulp type on the rates of delignification and cellulose degradation during ozone bleaching." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape3/PQDD_0030/MQ65497.pdf.

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36

Ballany, Jane M. "An investigation of the factors affecting the degradation of cellulose acetate artefacts in museum collections." Thesis, University of Strathclyde, 2000. http://digitool.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=27542.

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Plastics have had an increasing influence on human activity since the early years of the 20th century and as such are becoming an increasingly important part of museum collections. These plastics are already exhibiting signs of degradation, which raises the question of how they should be stored and treated. However, little is known about the specific degradation processes which occur. Further research is required because the lack of information is hindering the correct approach to plastic conservation. Current interest concerns the degradation of cellulose acetate artefacts; the work carried o

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37

Kusumi, Ryosuke. "Studies on Molecular Aggregation Structure and Enzymatic Degradation Behavior of Cellulose Ester-Based Graft Copolymers." Kyoto University, 2010. http://hdl.handle.net/2433/120487.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(農学)<br>甲第15444号<br>農博第1829号<br>新制||農||981(附属図書館)<br>学位論文||H22||N4543(農学部図書室)<br>27922<br>京都大学大学院農学研究科森林科学専攻<br>(主査)教授西尾嘉之, 教授木村恒久, 教授髙野俊幸<br>学位規則第4条第1項該当

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38

Seguine, Tyler William. "4D-Printing with Cellulose Nanocrystal Thermoplastic Nanocomposites: Mechanical Adaptivity and Thermal Influence." Thesis, Virginia Tech, 2021. http://hdl.handle.net/10919/103467.

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This thesis is concerned with fused filament fabrication (FFF) of cellulose nanocrystal (CNC) and thermoplastic polyurethane (TPU) nanocomposites, focusing on preliminary optimization of a processing window for 3D printing of mechanically responsive composites and the influence of temperature on mechanical adaptivity, thermal stability, and rheology. CNC thermoplastic nanocomposites are a water responsive, mechanically adaptive material that has been gaining interest in additive manufacturing for 4D-printing applications. Using a desktop FlashForge Pro 3D printer, we first established a viable

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39

Oka, Mihir Anil. "PLA and cellulose based degradable polymer composites." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/33829.

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We studied PLA-microcrystalline cellulose composites, focusing on the effects of processing, particle size and surface modification. The thermal and mechanical properties of these PLA based composites were studied and the effect of cellulose addition on PLA degradation was analyzed. For our system, the degradation rate was found to depend on initial sample crystallinity, pH of the degradation media and cellulose content of the composite. Composites were prepared using solution processing and melt mixing methods. The processing methods influenced the polymer's ability to crystallize affecting t

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40

Wang, Jiawei. "Thermal degradation reactivity of cellulose and hemicellulose in Japanese cedar and Japanese beech wood cell walls." Doctoral thesis, Kyoto University, 2021. http://hdl.handle.net/2433/264676.

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京都大学<br>新制・課程博士<br>博士(エネルギー科学)<br>甲第23395号<br>エネ博第422号<br>新制||エネ||80(附属図書館)<br>京都大学大学院エネルギー科学研究科エネルギー社会・環境科学専攻<br>(主査)教授河本晴雄, 教授亀田貴之, 教授杉山淳司<br>学位規則第4条第1項該当<br>Doctor of Energy Science<br>Kyoto University<br>DFAM

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41

Singh, Gargi. "Effect of surface modifications on biodegradation of nanocellulose and microbial response." Diss., Virginia Tech, 2015. http://hdl.handle.net/10919/76655.

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History teaches us that novel materials, such as chlorofluorocarbon and asbestos, can have dire unintended consequences to human and environmental health. The exponential growth of the field of nanotechnology and the products developed along the way provide the opportunity for a new paradigm of design thinking, in which human and environmental impacts are considered early on in product development. In particular, nanocellulose is touted as a promising green nanomaterial, as it is sourced from an effectively inexhaustible feedstock of wood-based cellulose and is assumed to be harmless to the en

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42

Johansson, Dan. "Carbohydrate degradation and dissolution during Kraft cooking : Modelling of kinetic results." Licentiate thesis, Karlstad University, Faculty of Technology and Science, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-1626.

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<p>Chemical pulp fibres from wood are commonly used in products associated with packaging as well as with printing and writing. The prevalent way of liberating fibres is by subjecting wood chips to Kraft cooking. This process has a history of almost 130 years and should be both well described and well established. However, new products and new applications that use fibres as an important renewable resource make it all the more important that the properties of fibres be controllable. The properties of wood fibres are influenced by their carbohydrate composition which, in turn, is dependent on t

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43

Karatt, Vellatt Vijesh. "Effect of sugar waste, surfactant waste and paint waste on the degradation of anaerobic bioreactor landfill components." Thesis, Virginia Tech, 2007. http://hdl.handle.net/10919/42439.

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Anaerobic bioreactor landfills are the landfills with an increased moisture content inorder to achieve a better biodegradation. Many Bioreactor landfills accept outside liquid wastes to achieve a higher moisture content . But the effect of these wastes on the degradation of landfill components is not known. In this study, the effect of sugar waste, surfactant waste and paint waste on the degradation of landfill components was investigated. Sugar waste, surfactant waste and paint wastes in different concentrations were added to the combination of paper, cardboard, office paper and plastic with

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44

Manchala, Karthik Reddy. "Effect of liquid waste addition on the overall performance of anaerobic bioreactor landfill." Thesis, Virginia Tech, 2008. http://hdl.handle.net/10919/31618.

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The effect of high organic liquid wastes on the overall performance of anaerobic bioreactor landfills is not known. In this study three different liquid wastes were added to mix of office paper, newspaper, cardboard and plastic in 3 different concentrations under anaerobic conditions to determine their effect on degradation of organics. The addition of buffer chemicals was found to improve degradation compared to data from an earlier study done without the addition of initial buffering. Paint waste with a COD 237,500 mg/L added at a concentration of 10% did not show any negative effect on the

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45

Harthan, Joan Carol. "The development and evaluation of sensors to detect the processes of degradation in cellulose triacetate photographic film." Thesis, Manchester Metropolitan University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.336551.

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46

Berger, Eldie. "Analysis of genes and enzymes involved in the degradation of cellulose and proteins by Butyrivibrio fibrisolvens H17c." Doctoral thesis, University of Cape Town, 1990. http://hdl.handle.net/11427/21977.

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Bibliography: pages 147-169.<br>Butyrivibrio fibrisolvens H17c is a gram-negative obligate anaerobic bacterium found in the rumen of most ruminants. The aim of this thesis was to investigate the enzymes produced by B. fibrisolvens H17c involved in the degradation of cellulose, xylan, and protein. A library of chromosomal DNA fragments from B. fibrisolvens H17c was established in the plasmid pEcoR251, an Escherichia coli positive selection vector. The library was screened for genes expressing cellulase, xylanase, and protease activity. Two genes expressing endo-β-1,4-glucanase and cellodextrina

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47

Lin, Long-Liu. "Analysis of genes and enzymes involved in the degradation of hemicellulose and cellulose by Butyrivibrio fibrisolvens H17c." Doctoral thesis, University of Cape Town, 1992. http://hdl.handle.net/11427/21825.

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Bibliography: pages 182-223.<br>B. fibrisolvens H17c is a Gram-positive obligate anaerobe which has been found in the rumen of most ruminants. Strains of B. fibrisol vens have been reported to exhibit activity toward cellulosic and hemicellulosic substrates. The aim of this thesis was to screen a genebank of B. fibrisolvens H17c DNA and to isolate genes expressing cellulase and xylanase activity. Two genes encoding β-1-4- glucosidase (BglA) and endo-β-1-4-xylanase (XynB) were cloned in E. coli.

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48

Sarip, Harun. "Optimization of DIC assisted hydrolytic conversion of polysaccharides (starch and cellulose)." Phd thesis, Université de La Rochelle, 2012. http://tel.archives-ouvertes.fr/tel-00986304.

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Present state of art related to biomass conversion technology so far was found to concentrate on an enzymatic process, coupled with thermal pretreatment on biomass rich in cellulose. Biomass that rich in crude starch is also important in terms of strategic and economic point of view. The main objective of this study is to adopt a new strategy for a single step conversion of a crude starch material into oligosaccharide and glucose utilizing DIC technology. In contrast to existing thermal based pretreatment, DIC technology involves two vacuum cycles; first vacuum cycle was to increase steam acce

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Franze, Andrew. "Accelerated Degradation of Chlorinated Solvents by Copper-Modified Nanoscale Zero Valent Iron (Cu-nZVI) Stabilized with Carboxymethyl Cellulose." Wright State University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=wright1432828633.

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Rosenholm, Angelica. "Enrichment of lignocellulosedegrading microorganisms byiterative culturing." Thesis, KTH, Skolan för bioteknologi (BIO), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-214397.

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