Development of Crystal Violet encapsulation in pectin
| cic.institucionOrigen | Centro de Investigación y Desarrollo en Tecnología de Pinturas | es |
| cic.isFulltext | true | es |
| cic.isPeerReviewed | true | es |
| cic.lugarDesarrollo | Centro de Química Inorgánica | es |
| cic.lugarDesarrollo | Centro de Investigación y Desarrollo en Criotecnología de Alimentos | es |
| cic.version | info:eu-repo/semantics/publishedVersion | es |
| dc.date.accessioned | 2019-08-28T14:19:42Z | |
| dc.date.available | 2019-08-28T14:19:42Z | |
| dc.identifier.uri | https://digital.cic.gba.gob.ar/handle/11746/10224 | |
| dc.title | Development of Crystal Violet encapsulation in pectin | en |
| dc.type | Artículo | es |
| dcterms.abstract | Six pectins with 35% to 91% methoxylation degree were purified and characterized to encapsulate Crystal Violet (CV). Amidated low methoxylated pectin (ALMP) was selected based on microsphere morphologies, aqueous solubility, viscosity and the effect of calcium concentration. Pectin microspheres were stabilized with Arabic gum (AG) and optimized according to the loading. Microspheres composed of 2.0% ALMP-1.0% AG crosslinked with 450mMcalcium(II)were able to encapsulate 217±2 μMCV. Opticalmicroscopy of the gels revealed spheroid microspheres with 250 ± 50 μm diameter containing homogenous CV distribution. Dried microspheres observed by SEM and epifluorescence showed a highly shrinkable matrix keeping the spheroidal morphology. Low relative viscosity of the ALMP-AG-CV solutions was found compared to ALMP and ALMP-AG. The Young moduli (60–80 Pa) of ALMP-AG microspheres by texturometric analysis indicated that the CV could interfere with the gel crosslinking. Raman spectroscopy analysis suggested some interaction of CV nucleophilic center within the matrix. FTIR of the matrix showed largest shifts in the carbonyl and carboxylate groups probably associated to H-bridges. CV stability studies performed on ALMP-AG microspheres, synthetized from polymer solutions with pH values above and below pectin pKa and showed faster CV release rates in presence of ionic strength. | en |
| dcterms.creator.author | Revuelta, Mariana Valeria | es |
| dcterms.creator.author | Chacon Villalba, María Elizabeth | es |
| dcterms.creator.author | Navarro, Alba S. | es |
| dcterms.creator.author | Güida, Jorge A. | es |
| dcterms.creator.author | Castro, Guillermo Raúl | es |
| dcterms.extent | p. 8-16 | es |
| dcterms.identifier.other | ISSN: 1381-5148 | es |
| dcterms.identifier.other | doi:10.1016/j.reactfunctpolym.2016.07.002 | es |
| dcterms.identifier.other | hdl:10915/78939 | es |
| dcterms.isPartOf.issue | vol. 106 | es |
| dcterms.isPartOf.series | Reactive and Functional Polymers | es |
| dcterms.issued | 2016 | |
| dcterms.language | Inglés | es |
| dcterms.license | Attribution-NonCommercial-ShareAlike 4.0 International (BY-NC-SA 4.0) | es |
| dcterms.subject | Crystal violet | en |
| dcterms.subject | Pectinas | es |
| dcterms.subject | Goma Arábiga | es |
| dcterms.subject | microencapsulation | en |
| dcterms.subject | Ionotropic gelation | en |
| dcterms.subject | Vibrational spectroscopies | en |
| dcterms.subject | Rheological studies | en |
| dcterms.subject.materia | Ciencias Químicas | es |
| dcterms.title.subtitle | Arabic gum gel microspheres | en |
Archivos
Bloque original
1 - 1 de 1
Cargando...
- Nombre:
- Development of crystal.pdf-PDFA.pdf
- Tamaño:
- 845.15 KB
- Formato:
- Adobe Portable Document Format
- Descripción:
- Documento completo