Please use this identifier to cite or link to this item: http://cibnor.repositorioinstitucional.mx/jspui/handle/1001/747
Covalently Cross-Linked Arabinoxylans Films for Debaryomyces hansenii Entrapment
RAMSES RAMON GONZALEZ ESTRADA
MONTSERRAT CALDERON SANTOYO
ELIZABETH CARVAJAL MILLAN
JUAN ARTURO RAGAZZO SANCHEZ
FRANCISCO BROWN BOJORQUEZ
AGUSTIN RASCON CHU
Felipe de Jesús Ascencio Valle
Acceso Abierto
Atribución-NoComercial-SinDerivadas
DOI: 10.3390/molecules200611373
ISSN: 1420-3049
URL: http://www.mdpi.com/journal/molecules
arabinoxylans, rheology, microscopy, cells protection
"In the present study, wheat water extractable arabinoxylans (WEAX) were isolated and characterized, and their capability to form covalently cross-linked films in presence of Debaryomyces hansenii was evaluated. WEAX presented an arabinose to xylose ratio of 0.60, a ferulic acid and diferulic acid content of 2.1 and 0.04 μg∙mg−1 WEAX, respectively and a Fourier Transform Infra-Red (FT-IR) spectrum typical of WEAX. The intrinsic viscosity and viscosimetric molecular weight values for WEAX were 3.6 dL∙g−1 and 440 kDa, respectively. The gelation of WEAX (1% w/v) with and without D. hansenii (1 × 107 CFU∙cm−2) was rheologically investigated by small amplitude oscillatory shear. The entrapment of D. hansenii decreased gel elasticity from 1.4 to 0.3 Pa, probably by affecting the physical interactions between WEAX chains. Covalently cross-linked WEAX films containing D. hansenii were prepared by casting. Scanning electron microscopy images show that WEAX films containing D. hansenii were porous and consisted of granular-like and fibre microstructures. Average tensile strength, elongation at break and Young’s modulus values dropped when D. hansenii was present in the film. Covalently cross-lined WEAX containing D. hansenii could be a suitable as a functional entrapping film."
Multidisciplinary Digital Publishing Institute
2015
Artículo
Molecules
Inglés
González-Estrada, R.; Calderón-Santoyo, M.; Carvajal-Millan, E.; Valle, F.J.A.; Ragazzo-Sánchez, J.A.; Brown-Bojorquez, F.; Rascón-Chu, A. Covalently Cross-Linked Arabinoxylans Films for Debaryomyces hansenii Entrapment. Molecules 2015, 20, 11373-11386.
MICOLOGÍA (LEVADURAS)
Versión publicada
publishedVersion - Versión publicada
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