Producción Científica Profesorado

Physicochemical characterization of an arabinoxylan-rich fraction from brewers' spent grain and its application as a release matrix for caffeine



Contreras López, Elizabeth

2019

Perez-Flores, JG., Contreras-Lopez, E., Castaneda-Ovando, A. , Perez-Moreno, F., Aguilar-Arteaga, K., Alvarez-Romero, GA., Tellez-Jurado, A., Physicochemical characterization of an arabinoxylan-rich fraction from brewers' spent grain and its application as a release matrix for caffeine, Food Research International, 2019,116, 1020-1030. doi.org/10.1016/j.foodres.2018.09.041


Abstract


The brewers' spent grain is a by-product generated during brewery process and is a potential source for arabinoxylans (AX) extraction. In the present work, the extraction and characterization of an arabinoxylan-rich fraction from brewers' spent grain (BSG-AX) were performed, and BSG-AX was evaluated as release matrix for caffeine. The BSG-AX showed an AX content of 72% (w/w), a ferulic acid content of 3.52??g/mg BSG-AX, an Ara/Xyl ratio of 0.89, an intrinsic viscosity of 41.18?mL?g?1, and a molecular weight of 43.80?kDa. The studied BSG-AX showed a good antioxidant capacity compared with other polysaccharide gums and was estimated by DPPH (114.41??M Trolox equivalent/g BSG-AX) and FRAP (49.01??mol Fe2+/g BSG-AX) assays. The partial specific volume (0.63?cm3?g?1), loss on drying (10.68%), swelling (10.87%), solubility (80.93%) and electrostatic interactions (by zeta potential, ?3.44 to ?9.17?mV) were determined and used to evaluate the application of the BSG-AX as release matrix. A film containing the BSG-AX, glycerol (as plasticizer) and caffeine (target drug) was prepared as release matrix. Glycerol promoted an increase in the extensibility and the surface smoothness of the BSG-AX-caffeine film. The drug was released (?98%) in about 7?h. These results are promising to concern the design and use of BSG-AX based biofilms for the controlled release of bioactive compounds.



Producto de Investigación




Artículos relacionados

Evaluación del Efecto Antihiperglucémico del Bagazo de Naranja (Citrus sinensis var. Valencia) en Es...

EVALUACIÓN DE LAS CARACTERÍSTICAS FISICOQUÍMICAS EN LA ESPECIE DE FRIJOL PHASEOLUS VULGARIS DE LAS V...

EFECTO DEL EXTRACTO DE LA CEREZA EN LA REDUCCIÓN DE COLESTEROL.

The Avrami Index and the Fractal Dimension in Vegetable Oil Crystallization

CARACTERIZACIÓN DEL ALMIDÓN DE DOS VARIEDADES DE SORGO DEL ESTADO DE TAMAULIPAS

EFECTO DE LA MODIFICACIÓN ÁCIDA DE ALMIDÓN DE MAÍZ AZUL (Zea mays) CON DIFERENTES SOLVENTES ACIDIFIC...

INCORPORACIÓN DE ÁCIDOS GRASOS OMEGA 3 EN HUEVO DE GALLINAS PONEDORAS A TRAVÉS DE LA SUPLEMENTACIÓN ...

Evaluación del Efecto Antihiperglucémico del Bagazo de Naranja (Citrus sinensis var.Valencia) en Est...

Incidence and Behavior of Salmonella and Escherichia coli on Whole and Sliced Zucchini Squash (Cucur...

Composición química de cebadas cultivadas bajo diferentes condiciones de labranza en tres localidade...