5 documents found, page 1 of 1
Xyloglucan and Concanavalin A based dressings in the topical treatment of mice ...
Arruda, Isabel R. S.; Souza, Marthyna P.; Soares, Paulo A. G.; Albuquerque, Priscilla B. S.; Silva, Túlio D.; Medeiros, Paloma L.; Silva, Marcia V.For medical biomaterials, xyloglucan dispersions can form films or gels to be applied as a wound dressing. For this purpose, the structural characterization of xyloglucan dressing (XG) and xyloglucan dressing containing 0.5 mg/mL of concanavalin A (XGL) was performed. The lectin release capacity and stability, cytotoxicity, and pro-wound healing effects were also investigated. XG and XGL films were prepared by ...
Xyloglucan from Hymenaea courbaril var. courbaril seeds as encapsulating agent ...
Farias, Mirla D. P.; Albuquerque, Priscilla B. S.; Soares, Paulo A. G.; Sá, Daniele M. A. T. de; Vicente, A. A.; Carneiro-da-Cunha, Maria G.This study evaluated the l-ascorbic acid (AA) encapsulation in microparticles of xyloglucan (XAA) extracted from Hymenaea courbaril seeds by spray drying (SD) and its application in tilapia fish burgers. The encapsulation efficiency was 96.34 ± 1.6% and the retention of the antioxidant activity was of 89.48 ± 0.88% after 60 days at 25 °C. SEM images showed microspheres with diameters ranging from 4.4 to 34.0 m....
Healing activity evaluation of the galactomannan film obtained from Cassia gran...
Albuquerque, Priscilla B. S.; Soares, Paulo A. G.; Aragão-Neto, Adelmo C.; Albuquerque, Giwellington S.; Silva, Luís C. N.; Lima-Ribeiro, Maria H. M.Galactomannan films from Cassia grandis seeds, associated or not with Cramoll 1,4, were used on topical wounds of rats for the evaluation of the healing process during 14 days. All of the films were evaluated by cytotoxic assay, FTIR and lectin hemagglutinating activity (HA). Forty-five male rats were submitted to aseptic dermal wounds (Ø = 0.8 cm) and divided in groups (n = 15): control, test 1, and test 2, tr...
Investigating a galactomannan gel obtained from Cassia grandis seeds as immobil...
Albuquerque, Priscilla B. S.; Silva, Caroline S.; Soares, Paulo A. G.; Barros Junior, Wilson; Correia, Maria T. S.; Coelho, Luana C. B. B.Characterization, with emphasis on the rheological properties, of Cassia grandis seeds galactomannan gel containing immobilized Cramoll 1,4 is presented. The gels, with and without immobilized Cramoll 1,4, were evaluated along time by rheometry, pH, color, microbial contamination and lectin hemagglutinating activity (HA). Rheological determinations confirmed the gels to be very stable up to 30 days with variati...
Development and characterization of hydrogels based on natural polysaccharides ...
Soares, Paulo A. G.; Bourbon, A. I.; Vicente, A. A.; Andrade, Cesar A. S.; Barros Junior, Wilson; Correia, Maria T. S.; Pessoa Júnior, AdalbertoThe development of hydrogels based on natural polysaccharides was investigated by preparing mixtures of policaju/chitosan at weight ratios of 1:4 and 2:3. Utilizing dynamic light scattering (DLS) techniques for these mixtures, an increase on the hydrodynamic particle radius was observed varying their pH from 3.0 to 12.0. Furthermore, a reduction of ζ-potential was also observed for the same pH interval. Followi...