A5087322592- Polysaccharides Composition and Applications
- Enzyme Production and Characterization
- Food composition and properties
- Polymer Nanocomposites and Properties
- Herbal Medicine and Trade Cooperation
- Dye analysis and toxicity
- Pigment Synthesis and Properties
- Nanocomposite Films for Food Packaging
- Adsorption and biosorption for pollutant removal
- Food Chemistry and Fat Analysis
- Analytical Chemistry and Sensors
- Agricultural and Food Sciences
- Silicone and Siloxane Chemistry
Instituto Federal do Maranhão
2019-2025
Universidade Federal do Amazonas
2015
This research investigates the production of galactomannan from Adenanthera pavonina L. in its crude form and subsequent crosslinking with glutaraldehyde under various pH conditions. The study involved creation films sponges these materials, followed by a comprehensive analysis their structural, thermal, swelling, electrical properties. Galactomannan was crosslinked fixed concentration 0.2 mol/L glutaraldehyde, levels ranging 3 to 7. These were prepared through slow solvent evaporation...
Aiming of self-sustainable production, the search for biodegradable and biocompatible materials has brought with it need to know physicochemical dielectric characteristics polysaccharide-based composite structures, which can be used as important promising raw biotechnology electronic industries. Galactomannans are polysaccharides, extracted from seeds microbiological sources, consisting mannose galactose. In this context, work aimed extract, purify characterize by XRD, FTIR impedance...
The study's aim was to synthesize a crystalline film formed by L‐threonine crystals complexed with Cu 2+ ions (LTCu) dispersed in galactomannan (Gal) solution as well characterize its structural, vibrational, and thermal properties. Gal(LTCu) films were prepared the addition of copper II L‐threoninate concentrations 0.25, 0.50, 0.75 2% Gal solution. To properties, we used X‐ray diffraction (XRD), UV–Vis Raman spectroscopy, thermogravimetry, analyses (TG‐DTA). XRD showed that are have...
Abstract Galactomannans are neutral natural polymers isolated from legume endosperm and with wide use in the biomedical field. As a consequence, there is need to investigate materials for their properties order better understand apply them. In this study, we analyzed influence of pH medium on crosslinking process galactomannan glutaraldehyde, changing 3 7, using strong base. The Fourier Transform Infrared Spectrum (FTIR) swelling profiles glutaraldehyde crosslinked were evaluated. We have...
This work aimed to extract, purify, and characterize galactomannan from Adenanthera pavonina L. by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), impedance (IS). Galactomannans (Gal) are polysaccharides, commonly found in the seed endosperm of Fabaceae family, presenting a chemical structure formed mannose galactose, with units connected glycosidic bonds D-mannopyranose β(1→4) D-galactopyranose α(1→6). Due their physical-chemical properties biocompatibility, this...
Os corantes orgânicos constituem uma importante parcela dos poluentes descartados no meio ambiente, oriundos das indústrias têxteis, de papel e impressão. O Azul metileno é um corante orgânico, frequentemente utilizado nas cosméticos farmacêutica. Partículas óxido zinco (ZnO) foram preparadas pelo método Pechini calcinadas à temperaturas 400oC 800oC, visando a degradação do azul metileno. As partículas caracterizadas pela técnica difração raios-X (DRX) sua atividade na foi observada através...