| Texto completo | |
| Autor(es): Mostrar menos - |
Banerjee, Aparna
;
Fabi, Joao Paulo
;
Ormeno, Catherine
;
Banerjee, Srijan
;
Flores-Castanon, Nicolas
;
Valenzuela, Francisca
;
Sarkar, Shrabana
;
Galan, Alexander
;
Samanta, Dipayan
;
Saxena, Priya
;
Sani, Rajesh K. .
;
Rao, Manik Prabhu Narsing
;
Cabrera-Barjas, Gustavo
Número total de Autores: 13
|
| Tipo de documento: | Artigo Científico |
| Fonte: | International Journal of Biological Macromolecules; v. 321, p. 23-pg., 2025-09-01. |
| Resumo | |
Deception Island, Antarctica, harbors unique polyextreme conditions fostering versatile microorganisms with significant biotechnological potential. This is due to genomic adaptation to extreme conditions that lead to metabolic alterations, such as the production of unique exopolysaccharides. Bacillus licheniformis F2LB, isolated from Deception Island, Antarctica, was evaluated for its exopolysaccharide's structural and biotechnological potential (EPS). Genome analysis revealed EPS biosynthesis, UV resistance, and thermal adaptation genes. The EPS with a putative glucogalactomannan backbone, comprised mainly of a sugar molar ratio Man: Glu: Xyl: Fuc (1: 0.7: 0.4: 0.3) and other sugars in trace amounts. Spectroscopy identified key glycosidic linkages, and morphology showed a rough, nonporous surface. Functionally, EPS demonstrated robust thermal stability (T-peak 255 degrees C), remarkable antioxidant activities (similar to 100 % H2O2 scavenging; DPPH: 75.5 %), good emulsifying ability (90 % in olive oil), and water (238.7 %) and oil-holding capacities (384.7 %) exceeding commercial xanthan gum. These findings underline its potential as a sustainable food additive. (AU) | |
| Processo FAPESP: | 22/12834-2 - Efeitos das pectinas modificadas na saúde intestinal: estudos pré-clínicos e clínicos para avaliar efeitos celulares, transcricionais e epigenéticos |
| Beneficiário: | Joao Paulo Fabi |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| Processo FAPESP: | 13/07914-8 - FoRC - Centro de Pesquisa em Alimentos |
| Beneficiário: | Bernadette Dora Gombossy de Melo Franco |
| Modalidade de apoio: | Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs |