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Síntese e caracterização de hidrogéis de amido retrogradado e goma gelana utilizados como matriz em sistemas de liberação cólon específica de fármacos
(Universidade Estadual Paulista (Unesp), 2014-12-01)
Resistant starch exhibits high thermal stability and low solubility. Gellan gum is a natural polysaccharide with important bioadhesive properties. Both polymers can build hydrogels able to control drug release rates. The ...
Kefiran-alginate gel microspheres for oral delivery of ciprofloxacin
(Elsevier Science, 2016-09)
Ciprofloxacin is a broad-spectrum antibiotic associated with gastric and intestinal side effects after extended oral administration. Alginate is a biopolymer commonly employed in gel synthesis by ionotropic gelation, but ...
Saccharification of citrus wastes by immobilized polygalacturonase in an improved alginate matrix
(Springer Verlag Berlín, 2017-12)
Enzyme immobilization using hydrogels is a low-cost and effective system for the degradation of bulk pectin derived from orange industry residues. Polygalacturonases obtained from four different bacterial strains of ...
Controlled release of sulfasalazine release from "smart" pectin gel microspheres under physiological simulated fluids
(Springer, 2012-07)
Sulfasalazine (SLZ) is a synthetic nonsteroidal anti-inflammatory drug used mainly for the treatment of an inflammatory bowel and other diseases. Two pectins with different methylation degrees were blended to synthesized ...
A novel, green, low-cost chitosan-starch hydrogel as potential delivery system for plant growth-promoting bacteria
(Elsevier, 2018-12)
The study examines the use of macrobeads for the controlled-release of bacteria. Macrobeads were prepared by an easy dripping-technique using 20/80 wt/wt chitosan-starch blends and sodium tripolyphosphate as cross-linking ...
Encapsulation of a free-solvent extract of lycopene in alginate-Ca(II) beads containing sugars and biopolymers
(Springer, 2017-07)
Background: The purpose of the present study was to enhance the stability toward isomerization and control the release of an encapsulated free-solvent extract of lycopene, obtained from a nonconventional natural source, ...