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Academic literature on the topic 'Lignocellulosiques'
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Journal articles on the topic "Lignocellulosiques"
BARRY, J. L., S. GUENEAU, Agnès DAVID, C. BONNET, and Françoise KOZLOWSKI. "Fermentescibilité des constituants pariétaux de divers produits lignocellulosiques." Reproduction Nutrition Développement 28, Suppl. 1 (1988): 91–92. http://dx.doi.org/10.1051/rnd:19881120.
Full textCastéra, Patrick, Amadou Ndiaye, Christophe Feranandez, and Franck Michaud. "L'optimisation par essaim particulaire appliquée à la conception de composites à renforts lignocellulosiques." Revue des composites et des matériaux avancés 18, no. 2 (August 31, 2008): 185–90. http://dx.doi.org/10.3166/rcma.18.185-190.
Full textEl Boustani, Meriem, François Brouillette, Gilbert Lebrun, and Ahmed Belfkira. "Effet de l’acétylation en masse sur la mouillabilité et la stabilité thermique des fibres lignocellulosiques." Revue des composites et des matériaux avancés 26, no. 3-4 (December 30, 2016): 331–47. http://dx.doi.org/10.3166/rcma.26.331-347.
Full textVaitilingom, Gilles, Zéphirin Mouloungui, Anthony Benoist, François Broust, Tizane Daho, and Bruno Piriou. "Vers une génération plus « verte » de biodiesels." OCL 28 (2021): 2. http://dx.doi.org/10.1051/ocl/2020067.
Full textBonnet, M. C., J. De Laat, M. Dore, and B. Lila. "Utilisation de l'ozone pour la valorisation de dechets lignocellulosiques: Influence de l'ozonation sur les constituants parietaux et sur la digestibilite de la paille de ble." Environmental Technology 12, no. 8 (August 1991): 695–704. http://dx.doi.org/10.1080/09593339109385058.
Full textBESLE, J. M., and J. P. JOUANY. "La biomasse pariétale des fourrages et sa valorisation par les herbivores." INRAE Productions Animales 3, no. 1 (February 3, 1990): 39–50. http://dx.doi.org/10.20870/productions-animales.1990.3.1.4359.
Full textOgier, J. C., J. P. Leygue, D. Ballerini, J. Pourquie, and L. Rigal. "Production d'éthanol a partir de biomasse lignocellulosique." Oil & Gas Science and Technology 54, no. 1 (January 1999): 67–94. http://dx.doi.org/10.2516/ogst:1999004.
Full textSergent, Arnaud, and Clarisse Cazals. "L’industrie papetière face au développement de la bioraffinerie lignocellulosique. Dynamiques institutionnelles et perspectives territoriales." Économie rurale, no. 349-350 (December 15, 2015): 13–30. http://dx.doi.org/10.4000/economierurale.4711.
Full textChérif, Hadj-Ahmed, Faical Larachi, Alain Adnot, and Amin Sarvaramini. "Torréfaction de la biomasse lignocellulosique dans les liquides ioniques: Analyse comparative par spectroscopies de surface." Canadian Journal of Chemical Engineering 92, no. 11 (August 27, 2014): 1839–58. http://dx.doi.org/10.1002/cjce.21998.
Full textChérif, Hadj-Ahmed, Abdelkader Chaala, Denis Rodrigue, and Faical Larachi. "Traitement solvothermique superficiel de la biomasse lignocellulosique dans les liquides ioniques-hygroscopicité, morphologie et propriétés mécaniques." Canadian Journal of Chemical Engineering 93, no. 1 (October 30, 2014): 29–36. http://dx.doi.org/10.1002/cjce.22095.
Full textDissertations / Theses on the topic "Lignocellulosiques"
Landrevy, Christel. "Réticulation des fibres lignocellulosiques." Thèse, Université du Québec à Trois-Rivières, 2012. http://depot-e.uqtr.ca/6174/1/030405459.pdf.
Full textNouwezem, Mehenou Rufine. "Valorisation de résidus lignocellulosiques : obtention de matériaux thermodurcissables." Toulouse, INPT, 1992. http://www.theses.fr/1992INPT052G.
Full textThiebaud-Roux, Sophie Borredon Marie-Elisabeth. "Valorisation chimique de composés lignocellulosiques obtention de nouveaux matériaux /." Toulouse : INP Toulouse, 2004. http://ethesis.inp-toulouse.fr/archive/00000045.
Full textKhaldi, Zineb. "Elaboration et évaluation biologique de nouveaux matériaux lignocellulosiques antibactériens." Thesis, Limoges, 2018. http://www.theses.fr/2018LIMO0090/document.
Full textThe contamination of surfaces by bacteria and the emergence of antimicrobial resistant strains are very worrying problems in different areas such as hospital and food. This contamination begins with the adhesion of pathogenic bacteria on a surface until the formation of biofilms. These biofilms contribute to the emergence of resistances of certain bacterial strains to conventional treatments. To answer these problems of surface contamination, this thesis work focuses on the development of new antibacterial materials based on pulp fibers. In the first part, we focused on the development of an antibacterial paper by grafting, via triazine link, two essential oil compounds, thymol and carvacrol, known for their antibacterial activities. The microbiological evaluation of the developed materials against the two bacterial strains tested, E. coli and S. aureus, showed a bacteriostatic effect. These materials block the bacterial growth thus preventing the biofilms formation. Synergy between thymol and carvacrol grafted onto paper has also been shown. In a second part, our study focused on the development of an antibacterial paper that acquires its activity only after the grafting and formation of "aryl-1,2,3-triazole", the active motif. The grafting is carried out by a reaction of "Click Chemistry", the copper (I)-catalyzed Azide Alkyne Cycloaddition. The antibacterial tests reveal the importance of the aryl substituent, the influence of the contact time and the relevance of using mixtures of materials. The antibacterial activity observed on the thermomechanical pulp fibers is better in both parts. The different results obtained are described in this manuscript
Faugeras, Pierre-Antoine. "Valorisation des fibres lignocellulosiques de la pâte à papier." Limoges, 2012. https://aurore.unilim.fr/theses/nxfile/default/382451e6-1b7f-4590-80b3-57ad5131d79a/blobholder:0/2012LIMO4047.pdf.
Full textIn this work, we are interested in the chemical modification of pulp fibres, mainly composed of cellulose, in order to develop new ways of valorisation. In a first part, we worked on the development of the cross-linking of the papermaking fibres using the 1-3 dipolar cycloaddition reaction of Huisgen to form a triazole ring between two cellulose chains without any intramolecular reaction. For this work, we have developed, for the first time, the reactions of propargylation and tosylation of cellulose fibres in aqueous medium. The modified fibres were analysed by XPS, XRD and SEM, and underwent a series of tests to assess their physical properties and the effect of changes. These tests confirm on the one hand the crosslinking of the fibres on the other hand highlight some interesting results obtained in the case of the sheets containing propargylated fibres. The second part of this work is devoted to the development of paper with photobactericidal properties by grafting porphyrins onto lignocellulosic fibres using the 1-3 dipolar cycloaddition reaction of Huisgen. We first carried out the preparation of the photosensitizer before performing the coupling with the cellulose fibres. Porphyrins functionalized fibres were then embedded in sheets of paper for further study of their bactericidal and photobactericidal effects
Faugeras, Pierre-Antoine. "Valorisation des fibres lignocellulosiques de la pâte à papier." Thèse, Université du Québec à Trois-Rivières, 2013. http://depot-e.uqtr.ca/6856/1/030429765.pdf.
Full textThiebaud-Roux, Sophie. "Valorisation chimique de composés lignocellulosiques : obtention de nouveaux matériaux." Phd thesis, Toulouse, INPT, 1995. http://oatao.univ-toulouse.fr/7362/1/thiebaud.pdf.
Full textNzambe, Ta Keki Jean Kerim. "Elaboration de matériaux bioactifs à partir de fibres lignocellulosiques." Thesis, Limoges, 2015. http://www.theses.fr/2015LIMO0133/document.
Full textSurface contamination by pathogens constitutes a major public health problem encountered in many areas such as hospitals, environment and food industry. This contamination consists in the adhesion of pathogenic or opportunistic bacteria that can attach to a biotic or abiotic surface and lead to the formation of biofilm. An effective way to fight against microbial contamination is the development of antibacterial surfaces, in order to prevent or reduce bacterial adhesion. Based on the expertise of the Laboratoire de Chimie des Substances Naturelles in the field of polysaccharides, we have undertaken the development of antibacterial materials by grafting through covalent bonds molecules presenting antibacterial properties onto lignocellulosic fibers (in this case Kraft pulp fibers). Triazoles are resistant to acid and basic hydrolysis, reductive and oxidative conditions. This moiety is also relatively resistant to metabolic degradation and is not posing particular toxicity problems. The study of the antibacterial effect has shown a bactericidal activity of the triclosan-Kraft pulp sheet against three strains frequently found in hospitals: Pseudomonas aeruginosa, Bacillus cereus and Escherichia coli. In the case of grafting photosensitizers, only the neutral porphyrin-Kraft pulp sheet material displayed a strong photobactericidal activity after irradiation
Bonnet, Marie-Claude. "Contribution à l'étude de la valorisation des déchets lignocellulosiques par ozonation." Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb37612031b.
Full textLebaz, Noureddine. "Modélisation de l’hydrolyse enzymatique de substrats lignocellulosiques par bilan de population." Thesis, Toulouse, INSA, 2015. http://www.theses.fr/2015ISAT0030/document.
Full textThe enzymatic hydrolysis of lignocellulosic biomass is a promising approach for the bioconversion of organic matter into fermentable sugars aiming ultimately to produce second generation biofuel. Globally, enzymatic cocktails, containing different activities which are characterized by their specific mechanisms, are used as biocatalysts. Most of the studies devoted to the modelling of this process address the problem via kinetic approaches in which the particulate aspects and the dynamic evolution of the properties of the substrate/biocatalyst/system are not taken into account. Moreover, such models aim to reproduce the kinetics of release of simple sugars and treat only the case where the enzymes and the substrate are simultaneously mixed at the beginning of the hydrolysis reaction. Therefore, issues related to the design/optimization of the process such as the supplying mode (batch/continuous) and the sequential adding of the enzymes/substrate cannot be addressed with these models. In this work, a population balance formalism is proposed as modelling approach. The model is based on a structural heterogeneity of the substrate namely the chain/particle size distribution. As a first numerical approach, the method of classes is used in the case of polymer chains undergoing endoglucanase (random breakage) and exoglucanase (chain-end scission) attacks. Secondly, the method of moments is adopted to solve the same problem and then adapted to the case of a particulate substrate by introducing the particle cohesion effect which depends on the enzymatic attacks as well as on the hydrodynamic shear stress. Finally, the confrontation of the numerical results from the method of moments to the experimental distributions motivated the development of reconstruction methods in order to restore distributions from a finite sequence of their moments. Alongside this modelling work, the suitable metrology has been developed for the characterization of these systems. Three different granulometric techniques (Morphogranulometry, Focused Beam Reflectance Measurement (FBRM) technique and Laser Diffraction Particle Size Analysis) are used to reach the time-evolution of the particle size distribution of microcrystalline cellulose (Avicel). In this context, numerical tools used for the analysis and the comparison of the different experimental distributions are proposed. In addition, the concentrations of reducing and simple sugars (glucose and cellobiose) are measured all along the hydrolysis reactions. The modeling of enzymatic hydrolysis developed here combines the concepts of homogeneous and heterogeneous catalysis. Integrated into the framework of multivariable population balance model, these allow the chain/particle size distribution evolution during the reaction and the kinetics of simple sugars release to be predicted
Books on the topic "Lignocellulosiques"
Vanasse, Claude. Liquéfaction de matières lignocellulosiques par voie organo-solvolytiques: Influence des forces de cisaillement élevées sur la désagrégation et la dépolymérisation des constituants majeurs. Ottawa: La Ministère, 1986.
Find full textBernard, Monties, and Association pour la promotion industrie-agriculture., eds. Biomasses lignocellulosiques: Perspectives technico-économiques : [colloque] 16-17 mars 1988. Paris: APRIA, 1990.
Find full textBiomasses lignocellulosiques: Perspectives technico-economiques : [colloque] 16-17 mars 1988. [Diffusion, Lavoisier Tec & doc, 1990.
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