4 documents found, page 1 of 1
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...
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...
Characterization and rheological study of the galactomannan extracted from seed...
Albuquerque, Priscilla B. S.; Barros Junior, Wilson; Santos, Gustavo R. C.; Correia, Maria T. S.; Mourão, Paulo A. S.; Teixeira, J. A.Galactomannan extracted from seeds of Cassia grandis with 0.1 M NaCl, followed by ethanol precipitation, presented a yield of 36 ± 8%. The polysaccharide has a constant mannose/galactose ratio (2.44:1). Methylation analysis, one and two dimensional NMR spectroscopy confirmed that the polysaccharide has a central core composed of 4-linked β-mannose units, with branches of galactose, linked to the carbohydrate co...
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...