Produção Nacional
Revisado por pares
Production of exopolysaccharide from Klebsiella oxytoca: Rheological, emulsifying, biotechnological properties, and bioremediation applications
2024; Elsevier BV; Volume: 278; Linguagem: Inglês
10.1016/j.ijbiomac.2024.134400
ISSN1879-0003
AutoresLetícia de Melo Teixeira, Éverton da Silva Santos, Rafaela Said dos Santos, Anderson Valdiney Gomes Ramos, Débora Cristina Baldoqui, Marcos Luciano Bruschi, José Eduardo Gonçalves, Regina Aparecida Correia Gonçalves, Arildo José Braz de Oliveira,
Tópico(s)Enzyme Production and Characterization
ResumoBacteria can synthesize a broad spectrum of multifunctional polysaccharides including extracellular polysaccharides (EPS). Bacterial EPS can be utilized in the food, pharmaceutical, and biomedical areas owing to their physical and rheological properties in addition to generally presenting low toxicity. From an ecological viewpoint, EPS are biodegradable and environment compatible, offering several advantages over synthetic compounds. This study investigated the EPS produced by Klebsiella oxytoca (KO-EPS) by chemically characterizing and evaluating its properties. The monosaccharide components of the KO-EPS were determined by HPLC coupled with a refractive index detector and GC-MS. The KO-EPS was then analyzed by methylation analysis, FT-IR and NMR spectroscopy to give a potential primary structure. KO-EPS demonstrated the ability to stabilize hydrophilic emulsions with various hydrophobic compounds, including hydrocarbons and vegetable and mineral oils. In terms of iron chelation capacity, the KO-EPS could sequester 41.9 % and 34.1 % of the most common iron states, Fe
Referência(s)