4 documents found, page 1 of 1
Study of the effect of solvent on acetylate cashew gum-based nanoparticles prop...
Macedo, Karolina Carneiro Morais; Chaves, Luíse Lopes; Vieira, Alexandre Couto Carneiro; Nadvorny, Daniela; Paula, Regina Célia Monteiro deThe aim of this work was to investigate the influence of acetone and dimethyl sulfoxide (DMSO) on acetylated cashew gun (ACG) nanoparticles parameters and to assess their antimicrobial activity. C1 nanoparticles presented smaller size (81.3 nm) than compared to C2 (115.7 nm). Although, acetone formed particles with lower PDI value. Both C1 and C2 presented negative zeta potential (-39.8 and -31.7 respectively)....
Acetylated cashew gum-based nanoparticles for the incorporation of alkaloid epi...
Rodrigues, Jessica do Amaral; Araújo, Alyne Rodrigues de; Pitombeira, Nadia Aline; Plácido, Alexandra; Almeida, Miguel Peixoto deThe natural alkaloid epiisopiloturine has recently become the focus of study for various medicinal properties, particularly for its anti-inflammatory and antischistosomal effect. The incorporation of active molecules in natural polymeric matrices has garnered increasing interest during recent decades. A new derivative of cashew gum successfully obtained by gum acetylation has shown great potential as a carrier ...
Polysaccharide isolated from Agardhiella ramosissima : chemical structure and a...
Batista, Jalles A.; Dias, Eulina G.N.; Brito, Tarcisio V.; Prudêncio, Rafael S.; Silva, Renan O.; Ribeiro, Ronaldo A.; Souza, Marcellus Henrique L.P.The sulfated polysaccharide (PLS) fraction of Agardhiella ramosissima was characterized by microanalysis, infrared spectroscopy, NMR and gas–liquid-chromatography–mass-spectrometry. The main constituent of PLS was the carrageenan. The monosaccharide composition of the PLS showed galactose, 3,6- anhydrogalactose and 6-O-methylgalactose. The PLS (30 mg kg−1) significantly reduced the paw oedema induced by carrage...
Extraction and physicochemical characterization of Sargassum vulgare alginate f...
Torres, Marcia R.; Sousa, Alessandra P. A.; Silva Filho, Eduardo; Melo, Dirce F.; Feitosa, Judith P. A.; Paula, Regina Célia Monteiro deAlginate fractions from Sargassum vulgare brown seaweed were characterized by 1 H NMR and fluorescence spectroscopy and by rheological measurements. The alginate extraction conditions were investigated. In order to carry out the structural and physicochemical characterization, samples extracted for 1 and 5 h at 60 C were further purified by re-precipitation with eth- anol and denoted as SVLV ( S. vulgare low vi...