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Academic literature on the topic 'Carraghénanes'
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Journal articles on the topic "Carraghénanes"
Lemoine, Maud, and William Helbert. "Dégradation enzymatique en phase hétérogène des polysaccharides : exemple des agarases et des carraghénases." Journal de la Société de Biologie 201, no. 3 (2007): 291–96. http://dx.doi.org/10.1051/jbio:2007027.
Full textKavoli, Samira, Maysam Mirzaie, Farideh Feizi, Vahid Rakhshan, Valiollah Arash, and Ali Bijani. "Accélération du mouvement dentaire orthodontique par injection locale de carraghénane : étude expérimentale préliminaire sur animaux." International Orthodontics 15, no. 4 (December 2017): 588–99. http://dx.doi.org/10.1016/j.ortho.2017.09.002.
Full textMouecoucou, J., C. Villaume, HM Bau, JP Nicolas, and L. Mejean. "Effets des alginates et des carraghénates de sodium associés aux protéines de soja sur le coefficient d'efficacité protéique (CEP)." Reproduction Nutrition Développement 30, no. 4 (1990): 541–47. http://dx.doi.org/10.1051/rnd:19900409.
Full textMouécoucou, J., C. Villaume, HM Bau, JP Nicolas, and L. Méjean. "Renutrition après Ingestion de régimes comprenant 10% de protéines de soja associées à diverses concentrations d'alginate ou de carraghénate de sodium. Effets sur la croissance et les paramètres lipidiques chez le rat." Reproduction Nutrition Développement 31, no. 4 (1991): 377–88. http://dx.doi.org/10.1051/rnd:19910404.
Full textZAMORANO, Jaime, and Fabien CANIVET. "Carraghénanes : agents gélifiants, épaississants et stabilisants." Ressources marines et biotechnologies bleues, June 2018. http://dx.doi.org/10.51257/a-v2-f5080.
Full textZAMORANO, Jaime. "Carraghénanes : agents gélifiants, épaississants et stabilisants." Bioprocédés et bioproductions, March 2006. http://dx.doi.org/10.51257/a-v1-f5080.
Full text"Gènes codant pour des iota-carraghénanes et leur utilisation pour la production d'enzymes de biodégradation des carraghénanes (T Barbeyron et al, FR)." Biofutur 1998, no. 180 (July 1998): 47. http://dx.doi.org/10.1016/s0294-3506(98)80259-7.
Full text"Gènes de glycosyl-hydrolases et leur utilisation pour la production d'enzymes de biodégradation de carraghénanes (T Barbeyron et al, FR)." Biofutur 1998, no. 181 (September 1998): 49. http://dx.doi.org/10.1016/s0294-3506(98)80193-2.
Full textDissertations / Theses on the topic "Carraghénanes"
Préchoux, Aurélie. "Modification des propriétés physico-chimiques des carraghénanes par la purification et caractérisation de carraghénane-sulfatases." Paris 6, 2012. http://www.sb-roscoff.fr/images/stories/sbr/Edition-communication/theses/these_A.Prechoux_2012.pdf.
Full textCarrageenans are sulfated galactans extracted from cell wall of numerous species of red seaweeds. These polysaccharides of marine origin present unique rheological properties, and are widely used as texturing agents in the food, cosmetic, and pharmaceutical industries. They are composed of galactose units linked alternatively by (1→3) and (1→4) links, and differ by the occurence of 3,6-anhydro bridge and their degree of sulfatation. However, carrageenans are heteropolymers and present complex hybrid stuctures in nature. The variability of carrageenan composition, which depends on algal species, life stage and extraction processes, offers a wide range of physico-chemical properties for various applications. In order to master the rheological properties of carrageenans, it’s necessary to control their chemical structures. To this end, the purification of enzymes of desulfatation -called sulfatases- was undertaken allowing monitoring directly on the gelling properties of these polysaccharides. These enzymes catalyse the hydrolysis of sulfate esters bonds of many biological compounds, and are involved in many metabolic processes
Guibet, Marion. "Analyse structurale des carraghénanes par hydrolyse enzymatique." Brest, 2007. http://hal.upmc.fr/tel-01115975.
Full textCarrageenans are linear sulphated polysaccharides occurring as cell wall constituents in red algae and are used as texturing agents in the food industry. The backbone of the polymer is composed of altemating α( 1→3) and ß( 1→4)-linked D-galactopyranose units. The structure of the repeating units differs in the degree and position of sulphate esterification. 3,6-anhydro-ct- D-galactopyranose units can also replace the α(1→3)-D-galactopyranose units. Structural studies of carrageenan have been conducted using carrageenases which are glycoside hydroiass produced by marine bacteria. They degrade specifieally carrageenans by cleaving their ß-(1→4) bounds. The oligo-carrageenans obtained have been analysed by liquid chromatography and characterised by mass spectrometry and NMR. The structure and the proportion of oligo-carrageeenans formed are representative of the polymer structure, These studies were performed on the heterogeneous structure of λ-, κ/ι- et κ/μ-carrageenans with λ-, κ- et ι-carrageenases. Characterisation of hybrid oligosaccharides within the hydrolytic products has confirmed the heterogeneity of these structures. Different organisation models (block, random) of the repetitive units within these heterogeneous chains have been proposed. Carrageenases should also be useful in the analysis of other more complex earrageenan structures and can be used directly on the algal ceil wall
Antonopoulos, Aristotelis. "Caractérisation par chromatographie en phase liquide et spectrométrie de masse d'oligosaccharides sulfatés : application à des hydrolysats de carraghénanes." Orléans, 2005. http://www.theses.fr/2005ORLE2032.
Full textNono, djamen Merveille Clay. "Etude structurale et rhéologique des systèmes mixtes caséinates/carraghénanes." Phd thesis, Université du Maine, 2011. http://tel.archives-ouvertes.fr/tel-00652071.
Full textNayouf, Mohammad. "Étude rhéologique et structurale de la qualité texturante du système amidon/kappa-carraghénane en relation avec le traitement thermomécanique." Nantes, 2003. http://www.theses.fr/2003NANT2008.
Full textTurquois, Tristan. "Interactions polysaccharide-polysaccharide : la synergie kappa carraghénane-galactomannane." Université Joseph Fourier (Grenoble), 1991. http://www.theses.fr/1991GRE10172.
Full textMollion, Jean. "Étude des carraghenanes de Rissoella verruculosa sur les filiations entre les différents systèmes de carraghenanes." Lille 1, 1988. http://www.theses.fr/1988LIL10086.
Full textFournet, Isabelle. "Etude des conditions de production et de dégradation de l'amidon floridéen en relation avec la synthèse des carraghénanes chez deux algues rouges Solieria Chordalis et Chondrus Crispus maintenues en cultures contrôlées." Brest, 1996. http://www.theses.fr/1996BRES2057.
Full textLecante, Armand. "Extraction de polysaccharides issus d'algues rouges : optimisation des procédés, études physico-chimiques et approches industrielles." Aix-Marseille 3, 2007. http://www.theses.fr/2007AIX30015.
Full textWithin the framework of industrial collaboration, the main aim of this study was to develop extraction processes of hydrocolloids from red seaweeds. Firstly, we developed methods for extracting semi-refined carrageenan from seaweeds Kappaphycus alvarezii, Kappaphycus striatum and Eucheuma denticulatum. Moreover, [iota]- and [kappa]- carrageenans and their respective precursors were identified by NMR spectroscopy. [iota]- and [kappa]-carrageenans and the extract from Gigartina skottsbergii were characterized by IR spectroscopy. Secondly, we studied the effects of alkali treatment of seaweeds Gracilaria verrucosa and Gelidium sesquipedale on the agar quality. We were interested in various acidic treatments to improve the yield and the agar quality. Bleaching process of Gracilaria verrucosa was developed. Finally, we reported desulfation of agar on anionic resins
Karbowiak, Thomas. "Transfert de petites molécules au travers d’emballages comestibles appliqués à l’interface d’aliments composites : de l’échelle macroscopique à l’échelle moléculaire." Dijon, 2006. http://www.theses.fr/2006DIJOS047.
Full textMass transfers of various molecules within multiphasic food products lead to quality deterioration and thus require the use of edible films or coatings in-between the foodstuff. Surface properties characterisation of edible films, composed of a iota-carrageenan matrix in association with a high melting point fat was investigated by goniometry and allows the determination of wetting and water penetration. Diffusion of a reference molecule such as fluorescein by the FRAP method displays a threshold of a critical water content inducing an increase of the molecular mobility, and better explains the role of glycerol, used as plasticizer. NMR molecular investigation contributes to a better understanding and identification of the interactions between the polymer and the diffusant. Finally, FTIR-ATR analysis enables to obtain a diffusion coefficient of liquid water through the film. Such a scaling investigation highlights the permeation mechanism within edible barriers