dc.creator | Barahona Urbina, Tamara de Lourdes | |
dc.creator | Prado, Héctor Juan | |
dc.creator | Bonelli, Pablo Ricardo | |
dc.creator | Cukierman, Ana Lea | |
dc.creator | Fissore, Eliana Noemi | |
dc.creator | Gerschenson, Lia Noemi | |
dc.creator | Matulewicz, Maria Cristina | |
dc.date.accessioned | 2018-03-15T17:04:34Z | |
dc.date.accessioned | 2018-11-06T13:46:54Z | |
dc.date.available | 2018-03-15T17:04:34Z | |
dc.date.available | 2018-11-06T13:46:54Z | |
dc.date.created | 2018-03-15T17:04:34Z | |
dc.date.issued | 2015-08 | |
dc.identifier | Barahona Urbina, Tamara de Lourdes; Prado, Héctor Juan; Bonelli, Pablo Ricardo; Cukierman, Ana Lea; Fissore, Eliana Noemi; et al.; Cationization of kappa- and iota-carrageenan - Characterization and properties of amphoteric polysaccharides; Elsevier; Carbohydrate Polymers; 126; 8-2015; 70-77 | |
dc.identifier | 0144-8617 | |
dc.identifier | http://hdl.handle.net/11336/38906 | |
dc.identifier | CONICET Digital | |
dc.identifier | CONICET | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/1879285 | |
dc.description.abstract | Commercial kappa- and iota carrageenans were cationized with 3-chloro-2-hydroxypropyltrimethylammonium chloride in aqueous sodium hydroxide solution. For kappa-carrageenan three derivatives with different degrees of substitution were obtained. Native and amphoteric kappa-carrageenans were characterized by NMR and infrared spectroscopy, scanning electron and atomic force microscopy; methanolysis products were studied by electrospray ionization mass spectrometry. Young moduli and the strain at break of films, differential scanning calorimetry, rheological and flocculation behavior were also evaluated; the native and the amphoteric derivatives showed different and interesting properties. Cationization of iota-carrageenan was more difficult, indicating as it was previously observed for agarose, that substitution starts preferentially on the 2-position of 3,6-anhydrogalactose residues; in iota-carrageenan this latter unit is sulfated. | |
dc.language | eng | |
dc.publisher | Elsevier | |
dc.relation | info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.carbpol.2015.02.053 | |
dc.relation | info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0144861715001691 | |
dc.rights | https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ | |
dc.rights | info:eu-repo/semantics/restrictedAccess | |
dc.subject | 3-CHLORO-2-HYDROXYPROPYLTRIMETHYLAMMONIUM CHLORIDE | |
dc.subject | AMPHOTERIC POLYSACCHARIDES | |
dc.subject | CATIONIZATION | |
dc.subject | IOTA-CARRAGEENAN | |
dc.subject | KAPPA-CARRAGEENAN | |
dc.title | Cationization of kappa- and iota-carrageenan - Characterization and properties of amphoteric polysaccharides | |
dc.type | Artículos de revistas | |
dc.type | Artículos de revistas | |
dc.type | Artículos de revistas | |