Bibliografie tematiche / Cellulose

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Letteratura scientifica selezionata sul tema "Cellulose"

Autore: Grafiati
Pubblicato: 4 giugno 2021
Ultima modifica: 25 luglio 2025

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Articoli di riviste sul tema "Cellulose"

1

Deng, Yijie, and Shiao Y. Wang. "Sorption of Cellulases in Biofilm Enhances Cellulose Degradation by Bacillus subtilis." Microorganisms 10, no. 8 (2022): 1505. http://dx.doi.org/10.3390/microorganisms10081505.

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Biofilm commonly forms on the surfaces of cellulosic biomass but its roles in cellulose degradation remain largely unexplored. We used Bacillus subtilis to study possible mechanisms and the contributions of two major biofilm components, extracellular polysaccharides (EPS) and TasA protein, to submerged biofilm formation on cellulose and its degradation. We found that biofilm produced by B. subtilis is able to absorb exogenous cellulase added to the culture medium and also retain self-produced cellulase within the biofilm matrix. The bacteria that produced more biofilm degraded more cellulose c
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Kumar, Amit. "Dissolving pulp production: Cellulases and xylanases for the enhancement of cellulose accessibility and reactivity." Physical Sciences Reviews 6, no. 5 (2021): 111–29. http://dx.doi.org/10.1515/psr-2019-0047.

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Abstract Dissolving pulps are high-grade cellulose pulps that have minimum amount of non-cellulosic impurities. Dissolving pulps are the basic source for the manufacturing of several cellulosic products such as viscose, lyocell, cellulose acetates, cellulose nitrates, carboxymethyl-cellulose, etc. Dissolving pulps are mainly manufactured by pre-hydrolysis kraft and acid sulphite pulping. A high reactivity of dissolving pulps is desirable for its eco-friendly utilization for several purposes. Several approaches including mechanical, chemical, ultrasonic, and enzymatic treatments have been emplo
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Hetzler, Stephan, Daniel Bröker, and Alexander Steinbüchel. "Saccharification of Cellulose by Recombinant Rhodococcus opacus PD630 Strains." Applied and Environmental Microbiology 79, no. 17 (2013): 5159–66. http://dx.doi.org/10.1128/aem.01214-13.

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ABSTRACTThe noncellulolytic actinomyceteRhodococcus opacusstrain PD630 is the model oleaginous prokaryote with regard to the accumulation and biosynthesis of lipids, which serve as carbon and energy storage compounds and can account for as much as 87% of the dry mass of the cell in this strain. In order to establish cellulose degradation inR. opacusPD630, we engineered strains that episomally expressed six different cellulase genes fromCellulomonas fimiATCC 484 (cenABC,cex,cbhA) andThermobifida fuscaDSM43792 (cel6A), thereby enablingR. opacusPD630 to degrade cellulosic substrates to cellobiose
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Hall, J., G. W. Black, L. M. A. Ferreira, et al. "The non-catalytic cellulose-binding domain of a novel cellulase from Pseudomonas fluorescens subsp. cellulosa is important for the efficient hydrolysis of Avicel." Biochemical Journal 309, no. 3 (1995): 749–56. http://dx.doi.org/10.1042/bj3090749.

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A genomic library of Pseudomonas fluorescens subsp. cellulosa DNA, constructed in lambda ZAPII, was screened for carboxymethyl-cellulase activity. The pseudomonad insert from a recombinant phage which displayed elevated cellulase activity in comparison with other cellulase-positive clones present in the library, was excised into pBluescript SK- to generate the plasmid pC48. The nucleotide sequence of the cellulase gene, designated celE, revealed a single open reading frame of 1710 bp that encoded a polypeptide, defined as endoglucanase E (CelE), of M(r) 59663. The deduced primary structure of
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Brumm, Phillip, Phillip Brumm, Dan Xie, et al. "Hydrolysis of Cellulose by Soluble Clostridium Thermocellum and Acidothermus Cellulolyticus Cellulases." Journal of Enzymes 1, no. 1 (2018): 5–19. http://dx.doi.org/10.14302/issn.2690-4829.jen-18-2025.

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The goal of this work was to clone, express, characterize and assemble a set of soluble thermostablecellulases capable of significantly degrading cellulose. We successfully cloned, expressed, and purified eleven Clostridium thermocellum (Cthe) cellulases and eight Acidothermuscellulolyticus(Acel) cellulases. The performance of the nineteen enzymes was evaluated on crystalline (filter paper) and amorphous (PASC) cellulose. Hydrolysis products generated from these two substrates were converted to glucose using beta-glucosidase and the glucose formed was determined enzymatically. Ten of the eleve
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Chatterjee, Soumya, Sonika Sharma, Rajesh Kumar Prasad, et al. "Cellulase Enzyme based Biodegradation of Cellulosic Materials: An Overview." South Asian Journal of Experimental Biology 5, no. 6 (2016): 271–82. http://dx.doi.org/10.38150/sajeb.5(6).p271-282.

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Abstract (sommario):
Cellulose, a macromolecule of β -D- anhydroglucopyranose units linked by β (1,4)-glycosidic bonds, is the world’s most abundant organic polymer and is the main component of plant biomass that provides stability. Due to its sta-ble fibrous property, it has become one of the most important commercial raw materials for many industries. However, accumulation of waste cellulose due to natural and/or anthropogenic sources is a matter of concern in terms of environmental pollution. Wastes cellulosic substrates can be utilized as sources of energy through controlled hydrolysis using cellulases- a comp
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Pratama, Rahadian, I. Made Artika, Tetty Chaidamsari, Herti Sugiarti, and Soekarno Mismana Putra. "Isolation and Molecular Cloning of Cellulase Gene from Bovine Rumen Bacteria." Current Biochemistry 1, no. 1 (2017): 29–36. http://dx.doi.org/10.29244/cb.1.1.29-36.

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Cellulases are the enzymes that hydrolyze cellulosic biomass and are produced by the microorganisms that grow over cellulosic matters. The objective of this research was to isolate and clone cellulase gene from cellulose-degrading bacteria of bovine rumen. Cellulose-degrading bacteria was isolated from rumen fluid using a selective medium. Total RNA was isolated from selected colony having cellulose degrading activity and was used as a template for cDNA construction using reverse transcriptase polymerase chain reaction (RT-PCR) technique. The resulted cDNA was employed as a template for PCR am
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Maji, Poulami, Megha Maji, Paramita Ghosh, and Prashant Shukla. "Cellulase-producing Microorganisms from Diverse Ecosystem: A Review." UTTAR PRADESH JOURNAL OF ZOOLOGY 46, no. 2 (2025): 25–38. https://doi.org/10.56557/upjoz/2025/v46i24760.

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Abstract (sommario):
Cellulose is the most abundant organic matter present on the planet. It is made up of glucose molecules which is the ultimate energy currency. Still, cellulose is utilized by most the animals as energy source as they lack necessary enzymes for degradation of the molecule. The animals who are able to utilize cellulose based materials as source of energy are able to do so due to cellulase producing gut microflora. Cellulases are enzymes which are used by certain organisms to breakdown the cellulose. Very small number of organisms are able to produce different types of cellulases which can break
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Li, Xia, Xiaoyan Geng, Lu Gao, et al. "Optimized expression of a hyperthermostable endoglucanase from Pyrococcus horikoshii in Arabidopsis thaliana." BioResources 14, no. 2 (2019): 2812–26. http://dx.doi.org/10.15376/biores.14.2.2812-2826.

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Manufacturing microbial cellulase in plants is an attractive strategy for the cost-effective production of cellulosic ethanol, especially the expression of thermostable cellulase, which causes no negative effects on plant growth and development. The beta-1,4-endogenous cellulase from Pyrococcus horikoshii (EGPh) is considered one of the most promising glycosyl hydrolase in the biofuel and textile industry for its hyperthermostability and its capability to hydrolyze crystalline celluloses, which has been researched extensively during recent years. In this study, the coding sequence of EGPh was
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Mizuno, Masahiro, Shuji Kachi, Eiji Togawa, et al. "Structure of Regenerated Celluloses Treated with Ionic Liquids and Comparison of their Enzymatic Digestibility by Purified Cellulase Components." Australian Journal of Chemistry 65, no. 11 (2012): 1491. http://dx.doi.org/10.1071/ch12342.

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In this study, regenerated celluloses were prepared from microcrystalline cellulose (MCC) by treatment with three ionic liquids (ILs) having 1-ethyl-3-methylimidazolium (Emim) as the cation, and the IL N-(2-methoxyethyl)-N,N-diethyl-N-methylammonium alanine ([N221ME][Ala]), where the amino acid moiety is the anion. The crystal form of cellulose was transformed from cellulose I to cellulose II by dissolution with an IL and regeneration with anti-solvent. However, the crystallinity of the regenerated cellulose was different; the disordered chain region was increased in the order of [N221ME][Ala]
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Tesi sul tema "Cellulose"

1

Ravachol, Julie. "Rôle des glycosides hydrolases de famille 9 dans la dégradation de la cellulose et exploration du catabolisme de xyloglucane chez Ruminiclostridium cellulolyticum." Thesis, Aix-Marseille, 2015. http://www.theses.fr/2015AIXM4054.

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Abstract (sommario):
R. cellulolyticum est une bactérie mésophile, anaérobie stricte et cellulolytique, qui sécrète des macro-complexes multienzymatiques (cellulosomes) très performants dans la dégradation des polysaccharides de la paroi végétale. Les Glycoside Hydrolases de famille 9 (GH9) sont toujours surreprésentées chez les bactéries à cellulosomes. Le génome de R. cellulolyticum code 13 GH9 dont 12 participent aux cellulosomes. Mon travail de thèse a consisté à étudier l’ensemble des GH9 de R. cellulolyticum, en déterminant leurs activités à l’état libre et en complexes, afin d’élucider leurs rôles dans la d
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Cervin, Nicholas. "Porous Cellulose Materials from Nano Fibrillated Cellulose." Licentiate thesis, KTH, Fiberteknologi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-104196.

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In the first part of this work a novel type of low-density, sponge-like material for the separation of mixtures of oil and water has been prepared by vapour deposition of hydrophobic silanes on ultra-porous nanocellulose aerogels. To achieve this, a highly porous (> 99 %) nanocellulose aerogel with high structural flexibility and robustness is first formed by freeze-drying an aqueous dispersion of the nanocellulose. The density, pore size distribution and wetting properties of the aerogel can be tuned by selecting the concentration of the nanocellulose dispersion before freeze-drying. The h
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Peri, Suma Lee Yoon Y. "Kinetic investigation and modeling of cellulase enzyme using non-crystalline cellulose and cello-oligosaccharides." Auburn, Ala., 2006. http://repo.lib.auburn.edu/2006%20Summer/Theses/PERI_SUMA_47.pdf.

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Mokatse, Khomotso. "Production, characterization and evaluation of fungal cellulases for effective digestion of cellulose." Thesis, University of Limpopo (Turfloop Campus), 2013. http://hdl.handle.net/10386/1129.

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Thesis (M.Sc. (Microbiology)) --University of Limpopo, 2013<br>The production of cellulase is a key factor in the hydrolysis of cellulosic materials and it is essential to make the process economically viable. Cellulases are the most studied multi- enzyme complex and comprise of endo-glucanases (EG), cellobiohydrolases (CBH) and β- glucosidases (BGL). The complete cellulase system; comprising CBH, EG and BGL components thus acts synergistically to convert crystalline cellulose to glucose. Cellulases are currently the third largest industrial enzyme worldwide. This is due to their wide applicat
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Schult, Tove. "Properties of acid sulfite cellulose for cellulose derivatives." Doctoral thesis, Norwegian University of Science and Technology, Department of Chemical Engineering, 2000. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-1508.

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Linder, Markus. "Structure-function relationships in fungal cellulose-binding domains /." Espoo, Finland : VTT, Technical Research Centre of Finland, 1996. http://www.vtt.fi/inf/pdf/publications/1996/P294.pdf.

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Gal, Laurent. "Etude du cellulosome de Clostridium cellulolyticum et de l'un de ses composants : la cellulase CelG." Aix-Marseille 1, 1997. http://www.theses.fr/1997AIX11071.

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Le cellulosome de la bacterie cellulolytique clostridium cellulolyticum atcc 35319 a ete etudie. C'est un complexe de 600 kda, en moyenne, qui degrade efficacement la cellulose cristalline. Il est constitue de plusieurs proteines de masse moleculaire relative variant entre 170 et 30 kda. L'utilisation du minicipc1 biotinyle a permis de montrer qu'au moins treize d'entre elles possedaient une dockerine. Parmi celles-ci, les proteines cela, celc, cele, celf et celg, dont les genes sont clones et sequences, ont ete identifiees. Afin de rechercher de nouveaux genes cel codant pour des proteines po
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Lane, J. M. "Solid state NMR studies of cellulose and cellulose acetate." Thesis, University of East Anglia, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.374690.

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Hu, Gang. "Adsorpton and Activity of Cellulase Enzymes on Various of Cellulose Substrates." NCSU, 2009. http://www.lib.ncsu.edu/theses/available/etd-04222009-234535/.

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The objective of this research is to understand the interfacial behavior of cellulase enzymes and its effect on cellulose hydrolysis. This research began with an in-situ monitoring of cellulose hydrolysis using a piezoelectric based quartz crystal microbalance. The time-course kinetics was modeled using a dose response model. The adsorption indicated by the frequency drop followed a Langmuir model as cellulase enzyme increased. Another important part of this research is the development of a new cellulase activity assay based on the piezoelectric technique. This assay provides an easier and mor
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Qian, Chen. "Adsorption of Xyloglucan onto Cellulose and Cellulase onto Self-assembled Monolayers." Thesis, Virginia Tech, 2012. http://hdl.handle.net/10919/42496.

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Adsorption of xyloglucan (XG) onto thin desulfated nanocrystalline cellulose (DNC) films was studied by surface plasmon resonance spectroscopy (SPR), quartz crystal microbalance with dissipation monitoring (QCM-D), and atomic force microscopy (AFM) measurements. These studies were compared to adsorption studies of XG onto thin sulfated nanocrystalline cellulose (SNC) films and regenerated cellulose (RC) films performed by others. Collectively, these studies show the accessible surface area is the key factor for the differences in surface concentrations observed for XG adsorbed onto the three c
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Libri sul tema "Cellulose"

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Yaser, Abu Zahrim, Mohd Sani Sarjadi, and Junidah Lamaming. Cellulose. CRC Press, 2023. http://dx.doi.org/10.1201/9781003358084.

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Clarke, Anthony J. Biodegradation of cellulose: Enzymology and biotechnology. Technomic Pub. Co., 1996.

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Khan, Sher Bahadar, and Tahseen Kamal. Bacterial Cellulose. CRC Press, 2021. http://dx.doi.org/10.1201/9781003118756.

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Oksman, Kristiina, and Mohini Sain, eds. Cellulose Nanocomposites. American Chemical Society, 2006. http://dx.doi.org/10.1021/bk-2006-0938.

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Heinze, Thomas J., and Wolfgang G. Glasser, eds. Cellulose Derivatives. American Chemical Society, 1998. http://dx.doi.org/10.1021/bk-1998-0688.

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Heinze, Thomas, Omar A. El Seoud, and Andreas Koschella. Cellulose Derivatives. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-73168-1.

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Fan, Liang-tseng, Mahendra Moreshwar Gharpuray, and Yong-Hyun Lee. Cellulose Hydrolysis. Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-72575-3.

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Hamad, Wadood Y. Cellulose Nanocrystals. John Wiley & Sons, Ltd, 2017. http://dx.doi.org/10.1002/9781118675601.

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Muthu, Subramanian Senthilkannan, and R. Rathinamoorthy. Bacterial Cellulose. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-9581-3.

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Kumar, Vinod, Saurabh Saran, Ashok Pandey, and Carlos Ricardo Soccol. Bacterial Cellulose. CRC Press, 2023. http://dx.doi.org/10.1201/9781003355434.

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Capitoli di libri sul tema "Cellulose"

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Kopp, Victória Vieira, Vânia Queiroz, Mariliz Gutterres, and João Henrique Zimnoch dos Santos. "Application of Cellulose in Leather." In Cellulose. CRC Press, 2023. http://dx.doi.org/10.1201/9781003358084-19.

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Indarti, Eti, Zalniati Fonna Rozali, Dewi Yunita, Laila Sonia, and Marwan Mas. "Characteristics of Cellulose Nanocrystals from Sugarcane Bagasse Isolated from Various Methods." In Cellulose. CRC Press, 2023. http://dx.doi.org/10.1201/9781003358084-14.

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Yahya, Mohammad Harris M., and Noor Azrimi Umor. "Challenges and State of the Art of Allium Pulp Development for Papermaking." In Cellulose. CRC Press, 2023. http://dx.doi.org/10.1201/9781003358084-18.

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Meng, Tan Kean, Muaz Mohd Zaini Makhtar, Muhammed Aidiel Asyraff Mohmad Hatta, and Mohd Asyraf Kassim. "Biorefinery of Biofuel Production." In Cellulose. CRC Press, 2023. http://dx.doi.org/10.1201/9781003358084-4.

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Aziz, Siti Ayu, and Mohd Sani Sarjadi. "A Brief Overview of the Use of Bamboo Biomass in the Asian Region's Energy Production." In Cellulose. CRC Press, 2023. http://dx.doi.org/10.1201/9781003358084-2.

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Raymond, Rozelyn Ignesia, and Khim Phin Chong. "Review on the Current Updates on Palm Oil Industry and Its Biomass Recycling to Fertilizer in Malaysia." In Cellulose. CRC Press, 2023. http://dx.doi.org/10.1201/9781003358084-5.

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Promie, Ahsan Rajib, Afroza Akter Liza, Md Nazrul Islam, et al. "Cellulose-Based Bioadhesive for Wood-Based Composite Applications." In Cellulose. CRC Press, 2023. http://dx.doi.org/10.1201/9781003358084-11.

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Umor, Noor Azrimi, Nurul Hidayah Adenan, Nadya Hajar, et al. "Comparing Properties and Potential of Pinewood, Dried Tofu, and Oil Palm Empty Fruit Bunch (EFB) Pellet as Cat Litter." In Cellulose. CRC Press, 2023. http://dx.doi.org/10.1201/9781003358084-21.

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Aziz, Siti Ayu, Sabrina Soloi, Mohd Hafiz Abd Majid, Juferi Idris, Md Lutfor Rahman, and Mohd Sani Sarjadi. "Pre-Treatment of Oil Palm Empty Fruit Bunches with Sea Water Improves the Qualities of Lignocellulose Biomass." In Cellulose. CRC Press, 2023. http://dx.doi.org/10.1201/9781003358084-3.

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Tanpichai, Supachok. "All-Cellulose Composites." In Cellulose. CRC Press, 2023. http://dx.doi.org/10.1201/9781003358084-10.

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Atti di convegni sul tema "Cellulose"

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Sanders, T. J., L. D. Souter, and R. A. Lewis. "Terahertz Modes of Cellulose." In 2024 49th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). IEEE, 2024. http://dx.doi.org/10.1109/irmmw-thz60956.2024.10697655.

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Mahdhani, Abbilah Ero, Venty Suryanti, Khoirun Nisa Ashar, Vicky Ahava Ferdinansyah, and Alifiananda Rahmatul Dafa Kesuma. "Bioconversion of Water Hyacinth (<i>Eichhornia crassipes</i>) Cellulose into Glucose by <i>Trichoderma viride</i>." In 8th International Conference on Advanced Material for Better Future. Trans Tech Publications Ltd, 2025. https://doi.org/10.4028/p-rd26vh.

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Bioconversion of water hyacinth (Eichhornia crassipes) cellulose into glucose was successfully conducted by Trichoderma viride. Cellulose was isolated from water hyacinth by delignification. The delignification method is carried out for bond breaking of lignin, hemicellulose and cellulose. The Fourier Transform Infrared (FTIR) spectra of the delignification products confirmed that cellulose was successfully isolated. FTIR spectra showed the presence of peaks for the C=O and C=C groups, the C-H and C─O groups of polysaccharide bonds, and the C─O─C vibrational peak of pyranose ring. Cellulose wa
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Manaenkov, Oleg, Olga Kislitsa, Antonina Stepacheva, Linda Nikoshvili, and Valentina Matveeva. "OPTIMIZATION OF PROCESS CONDITIONS FOR THE CATALYTIC CONVERSION OF MICROCRYSTALLINE CELLULOSE INTO SUGAR ALCOHOLS." In 24th SGEM International Multidisciplinary Scientific GeoConference 24. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/4.1/s17.21.

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The scale of annual reproduction of cellulose-containing biomass in nature allows us to draw an unambiguous conclusion that cellulose is the only source of raw materials for the chemical and fuel industries, representing a real alternative to fossil resources and, first of all, oil. Cellulose is the main component of plant biomass. According to some estimates, almost half of the organic carbon in the biosphere is contained in cellulose. Hydrolytic hydrogenation is a special case of carbohydrate hydrogenation. With regard to cellulose, the essence of the process is to combine the processes of i
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Ding, H., and F. Xu. "CELLULOSE-ACCESSIBILITY OF CELLULASES." In XXIst International Carbohydrate Symposium 2002. TheScientificWorld Ltd, 2002. http://dx.doi.org/10.1100/tsw.2002.770.

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Zhang, P. F., and Z. J. Pei. "Effects of Ultrasonic Treatments on Cellulose in Cellulosic Biofuel Manufacturing: A Literature Review." In ASME 2010 International Manufacturing Science and Engineering Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/msec2010-34180.

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Cellulosic biofuels are one type of renewable energy, and have been proposed to replace traditional liquid transportation fuels. Cellulosic biomass is the feedstocks in cellulosic biofuel manufacturing. Cellulose accounts for approximately 30% of the total weight in cellulosic biomass. Glucose, one type of monosaccharide convertible to ethanol, can be obtained by hydrolyzing the polymeric structure of cellulose. Currently enzymatic methods are the most common for the hydrolysis of cellulose. However, the low efficiency of enzymatic hydrolysis increases production cost and hinders the large-sca
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Atalla, Rajai H. "Studies of Polymorphy in Native Cellulose." In Papermaking Raw Materials, edited by V. Punton. Fundamental Research Committee (FRC), Manchester, 1985. http://dx.doi.org/10.15376/frc.1985.1.59.

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Our studies of cellulose structure based on X-ray diffractometry, Raman spectroscopy, and Solid State ¹³C-NMR have led us to a model which addresses questions of structure at two levels. The first is that of the organization of individual chains. Two stable ordered states of cellulose chains are postulated, together with a disordered state in which there is less coherence between the orientations of adjacent anhydroglucose rings. The ordered states are identified as kᵢ and kᵢᵢ based on their predominance in celluloses I and II, respectively; both conformations are based on the dimeric anhydroc
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Graham, William D., Stephanie L. Mathews, Christina Stolarchuk та ін. "Investigation into the Structural and Thermal Behavior of Bacterial Cellulose Fbers after Biologically Relevant Purification". У Advances in Pulp and Paper Research, Cambridge 2013, редактор S. J. I’ Anson. Fundamental Research Committee (FRC), Manchester, 2013. http://dx.doi.org/10.15376/frc.2013.2.785.

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Abstract (sommario):
Cellulose is the most abundant biopolymer on the planet. Historically rooted in the paper industry, advancements in colloidal chemistry, polymer chemistry, and the development of novel saccharification techniques have expanded the commercial applications of cellulose to include the production of liquid crystal displays, use in high strength composites, and biofuels. Despite this renewed interest in cellulosic products, the establishment of cellulose as a global commodity is significantly hindered by the inefficiencies in cellulose liberation and processing. The current model associated with ce
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SINGH ROHEWAL, SARGUN SINGH, JIHO SEO, NIHAL KANBARGI, and AMIT K. NASKAR. "RECYCLABLE CELLULOSE FIBER REINFORCED VITRIMER COMPOSITE." In Proceedings for the American Society for Composites-Thirty Eighth Technical Conference. Destech Publications, Inc., 2023. http://dx.doi.org/10.12783/asc38/36699.

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Vitrimer is an innovative class of polymeric materials which demonstrates traditional thermoset-like mechanical and chemical resilience while still being able to flow on demand like a traditional thermoplastic through covalently adaptive dynamic linkages. Herein, high-performance cellulose fiber reinforced vitrimer composites are developed using an epoxy-based vitrimer and natural cellulose paper. The reinforced vitrimer composite was fabricated by impregnating the porous structure of cellulose paper with two curable monomers, followed by in-situ polymerization of the monomers inside the fibro
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Hospodarova, Viola, Nadezda Stevulova, Vojtech Vaclavik, Tomas Dvorsky, and Jaroslav Briancin. "Cellulose Fibres as a Reinforcing Element in Building Materials." In Environmental Engineering. VGTU Technika, 2017. http://dx.doi.org/10.3846/enviro.2017.104.

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Nowadays, construction sector is focusing in developing sustainable, green and eco-friendly building materials. Natural fibre is growingly being used in composite materials. This paper provides utilization of cellulose fibres as reinforcing agent into cement composites/plasters. Provided cellulosic fibres coming from various sources as bleached wood pulp and recycled waste paper fibres. Differences between cellulosic fibres are given by their physical characterization, chemical composition and SEM micrographs. Physical and mechanical properties of fibre-cement composites with fibre contents 0.
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Chen, Xiao-Quan, Xue-Yan Deng, Wen-Hao Shen, and Meng-Yu Jia. "Preparation and Characterization of Spherical Nanosized Cellulose by Enzymatic Hydrolysis of Pulp Fibers." In Advances in Pulp and Paper Research, Oxford 2017. Fundamental Research Committee (FRC), Manchester, 2017. http://dx.doi.org/10.15376/frc.2017.2.785.

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In this work, the pulp fibers were enzymolyzed to prepare the nano-sized cellulose (NC). The as-prepared samples were characterized by optical microscopy, electron microscopy, and Raman spectra. The experimental results indicated that enzymatic hydrolysis of pulp fibers could produce the spherical NC with a mean particle size of about 30 nm, which has the excellent monodispersity and uniformity. When the concentration of complex enzymes was 20 u/mL (cellulase: xylanase = 9:1), the yield of NC was 13.6%. The single cellulase was used, even if the concentration and time reached up to 200 u/mL, o
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Rapporti di organizzazioni sul tema "Cellulose"

1

Morrison, Mark, and Joshuah Miron. Molecular-Based Analysis of Cellulose Binding Proteins Involved with Adherence to Cellulose by Ruminococcus albus. United States Department of Agriculture, 2000. http://dx.doi.org/10.32747/2000.7695844.bard.

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At the beginning of this project, it was clear that R. albus adhered tightly to cellulose and its efficient degradation of this polysaccharide was dependent on micromolar concentrations of phenylacetic acid (PAA) and phenylpropionic acid (PPA). The objectives for our research were: i) to identify how many different kinds of cellulose binding proteins are produced by Ruminococcus albus; ii) to isolate and clone the genes encoding some of these proteins from the same bacterium; iii) to determine where these various proteins were located and; iv) quantify the relative importance of these proteins
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Delmer, Deborah, Nicholas Carpita, and Abraham Marcus. Induced Plant Cell Wall Modifications: Use of Plant Cells with Altered Walls to Study Wall Structure, Growth and Potential for Genetic Modification. United States Department of Agriculture, 1995. http://dx.doi.org/10.32747/1995.7613021.bard.

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Our previous work indicated that suspension-cultured plant cells show remarkable flexibility in altering cell wall structure in response either to growth on saline medium or in the presence of the cellulose synthesis inhibitor 2,-6-dichlorobenzonitrile (DCB). We have continued to analyze the structure of these modified cell walls to understand how the changes modify wall strength, porosity, and ability to expand. The major load-bearing network in the walls of DCB-adapted dicot cells that lack a substantial cellulose-xyloglucan network is comprised of Ca2+-bridged pectates; these cells also hav
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3

Bartscherer, K. A., J. J. de Pablo, M. C. Bonnin, and J. M. Prausnitz. Purification of aqueous cellulose ethers. Office of Scientific and Technical Information (OSTI), 1990. http://dx.doi.org/10.2172/6084196.

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Alan R. White and Ann G. Matthysse. Cellulose Synthesis in Agrobacterium tumefaciens. Office of Scientific and Technical Information (OSTI), 2004. http://dx.doi.org/10.2172/840242.

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5

Cuzens, J. E. Conversion of bagasse cellulose into ethanol. Office of Scientific and Technical Information (OSTI), 1997. http://dx.doi.org/10.2172/674641.

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ตัณฑะพานิชกุล, วิวัฒน์. การผลิตอนุภาค Microcrystalline cellulose จากเส้นใยฝ้าย เพื่อทดแทนการนำเข้าจากต่างประเทศ : รายงานวิจัยฉบับสมบูรณ์. จุฬาลงกรณ์มหาวิทยาลัย, 2003. https://doi.org/10.58837/chula.res.2003.49.

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จุลผลึกเซลลูโลสเป็นสารที่สามารถนำไปใช้ประโยชน์ได้อย่างกว้างขวางในอุตสาหกรรมอาหาร เภสัชกรรม เครื่องสำอาง สี และอุตสาหกรรมอื่นๆ การผลิตจุลผลึกเซลลูโลสสามารถเตรียมได้ภายใต้ปฏิกิริยาไฮโดรไลซีสแบบวิวิธพันธ์ด้วยกรด (Heterogeneous acid hydrolysis) ดังนั้นในโครงงานวิจัยนี้จึงนำเส้นใยฝ้ายซึ่งสามารถหาได้ง่ายภายในประเทศและมีเซลลูโลสเป็นองค์ประกอบสูงถึง 94.24% และมีองศาความเป็นผลึก 80.16% มาเพิ่มมูลค่าโดยใช้เป็นวัตถุดิบในการผลิตจุลผลึกเซลลูโลส โดยผ่านกระบวนการย่อยสลายในสภาวะด่าง (Alkaline degradation) และศึกษาผลของความเข้มข้นของสารละลายโซเดียมไฮดรอกไซด์ อุณหภูมิและเวลา ที่มีต่อการย่อยสลายในสภาวะด่าง จะพบว
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Stipanovic, Arthur. The Effect of Cellulose Crystal Structure and Solid-State Morphology on the Activity of Cellulases. Office of Scientific and Technical Information (OSTI), 2014. http://dx.doi.org/10.2172/1163897.

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Barnes, Eftihia, Jennifer Jefcoat, Erik Alberts, et al. Synthesis and characterization of biological nanomaterial/poly(vinylidene fluoride) composites. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/42132.

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The properties of composite materials are strongly influenced by both the physical and chemical properties of their individual constituents, as well as the interactions between them. For nanocomposites, the incorporation of nano-sized dopants inside a host material matrix can lead to significant improvements in mechanical strength, toughness, thermal or electrical conductivity, etc. In this work, the effect of cellulose nanofibrils on the structure and mechanical properties of cellulose nanofibril poly(vinylidene fluoride) (PVDF) composite films was investigated. Cellulose is one of the most a
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Heintz, C. E., K. A. Rainwater, L. M. Swift, D. L. Barnes, and L. A. Worl. Enzymatic degradation of plutonium-contaminated cellulose products. Office of Scientific and Technical Information (OSTI), 1999. http://dx.doi.org/10.2172/350862.

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10

Wood, Devon, Hang Liu, and Carol J. Salusso. Production and characterization of bacterial cellulose fabrics. Iowa State University, Digital Repository, 2015. http://dx.doi.org/10.31274/itaa_proceedings-180814-130.

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