14 documents found, page 1 of 2
Production and properties of quercetin-loaded liposomes and their influence on ...
Albuquerque, Priscilla B. S.; de Souza, M. P.; Bourbon, Ana I.; Cerqueira, Miguel A.; Pastrana, L.; Jauregi, P.; Teixeira, J. A.The objective of this work was to prepare different concentrations of liposomes based on lecithin containing quercetin, and evaluate their effect on the properties of galactomannan films obtained from Cassia grandis seeds. Quercetin-loaded lecithin liposomes (QT-LL) were obtained by the ethanol injection method by incorporating quercetin in different concentrations in a previously prepared suspension of lecithi...
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....
Influence of hydrocolloids (galactomannan and xanthan gum) on the physicochemic...
Andrade, F. J. E. T.; Albuquerque, Priscilla B. S.; Moraes, G. M. D.; Farias, M. D. P.; Teixeira-Sá, D. M. A.; Vicente, A. A.; Carneiro-da-Cunha, M. G.Most gluten-free bakery formulations have starch sources of low nutritional value. The objective of this work was to use fava beans (Phaseolus lunatus) for the production of gluten-free sponge cakes, in addition to evaluating the effects of the partial substitution of fava bean flour by galactomannan and xanthan gum, isolated or mixed at 0.5 and 1.0% proportions, compared with a commercial reference. The proper...
Influence of Cassia grandis galactomannan on the properties of sponge cakes: a ...
Andrade, Francisca Joyce E. T.; Albuquerque, Priscilla B. S.; Seixas, José Roberto P. C. de; Feitoza, George S.; Barros Junior, Wilson; Vicente, A. A.Here we have proposed to evaluate potential replacers of fat in sponge cake formulations. Our investigation consisted initially of monitoring the physical-chemical changes in sponge cake batters caused by gradually replacing the vegetable fat/margarine of a control sample (standard sponge cake recipe) with galactomannan extracted from the seeds of Cassia grandis. Several samples were prepared where a 100% conce...
Immobilization of bioactive compounds in Cassia grandis galactomannan-based fil...
Albuquerque, Priscilla B. S.; Cerqueira, Miguel A.; Vicente, A. A.; Teixeira, J. A.; Carneiro-da-Cunha, Maria G.Galactomannan extracted from Cassia grandis seeds was used for the production of films containing different concentrations of the bioactive compounds lactoferrin (LF), bioactive peptides (BAPs), and phytosterols. SEM, FTIR, mechanical and thermal properties, colour, moisture content (MC), solubility, water vapour permeability (WVP), and contact angle (CA) were performed evaluating the effect of increasing conce...
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...
Approaches in biotechnological applications of natural polymers
Albuquerque, Priscilla B. S.; Coelho, Luana C. B. B.; Teixeira, J. A.; Carneiro-da-Cunha, M. G.Natural polymers, such as gums and mucilage, are biocompatible, cheap, easily available and non-toxic materials of native origin. These polymers are increasingly preferred over synthetic materials for industrial applications due to their intrinsic properties, as well as they are considered alternative sources of raw materials since they present characteristics of sustainability, biodegradability and biosafety. ...
Development of galactomannan-based films from Cassia grandis for the immobiliza...
Albuquerque, Priscilla B. S.; Cerqueira, Miguel Ângelo Parente Ribeiro; Coelho, Caroline Correa de Souza; Vicente, A. A.; Teixeira, J. A.Galactomannans are polysaccharides formed by a β(1 4)-D-mannan backbone attached to α(1 6)- D-galactose units. They are commonly extracted from leguminous seeds and used as alternative sources for the production of films. Lactoferrin (Lf), bioactive peptides (BAPs), and phytosterols are biomolecules with functional properties and potential immobilization into films. The use of galactomannan films as immobilizat...