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Contribution à l'étude morphologique, ultrastructurale et chimique de la figue de barbarie. Les polysaccharides pariétaux: charactérisation et modification chimique

Abstract : In a general context of food and non food valorization of the prickly pear, we were interested in the morphological analysis of the peel and the seeds of the fruit. The cell wall polysaccharides of the different tissues were isolated, purified, and their characterization was achieved by chemical methods as well as high resolution 1H and 13C NMR and CP/MAS. The other aspects of the work describe the chemical modification of the cellulose microfibrills. First of all, the oxidization of cellulose samples by the TEMPO-NaOCl-NaBr system were studied and the different parameters conditions were optimized in order to prepare polyglucuronic acid samples. Secondly, we studied the coupling, via peptide linkages, with poly(N-isopropylacrylamide) in order to synthesize thermosensitive biopolymers starting from oxidized cellulose samples
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Contributor : Youssef Habibi <>
Submitted on : Tuesday, June 15, 2004 - 9:15:56 PM
Last modification on : Friday, November 6, 2020 - 4:05:33 AM
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Youssef Habibi. Contribution à l'étude morphologique, ultrastructurale et chimique de la figue de barbarie. Les polysaccharides pariétaux: charactérisation et modification chimique. Autre. Université Joseph-Fourier - Grenoble I, 2004. Français. ⟨tel-00006273⟩

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