CIHIDECAR 12529
CENTRO DE INVESTIGACIONES EN HIDRATOS DE CARBONO
Unidad Ejecutora - UE
artículos
Título:
A simple procedure to obtain a medium-size oligogalacturonic acids fraction from orange peel and apple pomace wastes
Autor/es:
LADERO, MIGUEL; KOVENSKY, JOSÉ; GARCÍA-MARTÍN, ALBERTO; PILARD, SERGE; CANO, MARÍA EMILIA; LESUR, DAVID
Revista:
FOOD CHEMISTRY
Editorial:
ELSEVIER SCI LTD
Referencias:
Año: 2021 vol. 346
ISSN:
0308-8146
Resumen:
Pectin oligosaccharides, which can be obtained from fruit wastes, have proven their potential as plant immune system elicitors. Although the precise size of active species is still under investigation, medium size oligosaccharides have been reported as the most active. Three defined oligogalacturonic acid (OGAs) mixtures were produced from commercial pectin, orange peel and apple pomace residues. The methodology developed involves two sequential acid treatments followed by stepwise ethanol precipitation. Without the need of chromatographic separations, three different fractions were obtained. The fractions were analyzed by high performance anion exchange chromatography (HPAEC) and were completely characterized by mass spectrometry, showing that the small size, medium size and large size fractions contained OGAs of degree of polymerization 3 to 9, 6 to 18, and 16 to 55, respectively.
