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Abstract:

Exhaustive extraction of the endosperm from the seed of Gleditsia triacanthos using water at room temperature and 50°C left a residue, which was further extracted at 95°C. Precipitation of this extract with 2-propanol yielded major amounts of galactomannan components, while the supernatant was mainly composed of arabinose-rich constituents. Two fractions were obtained by anion-exchange chromatography. The fraction that eluted with water is an arabinan with (1 → 5) α-L linkages and branching mainly on C-2, accompanied with equal amounts of a low-galactose galactomannan oligosaccharide, and a small proportion of a β-(1 → 4)-galactan. The fraction eluted with an increased ionic strength consists mainly of a similar arabinan, and lower proportions of a high-galactose galactomannan, galactan, and protein. The arabinan moiety in both fractions was characterized by chemical analysis and 1D and 2D NMR spectroscopic techniques. © 2002 Elsevier Science Ltd. All rights reserved.

Registro:

Documento: Artículo
Título:NMR spectroscopy and chemical studies of an arabinan-rich system from the endosperm of the seed of Gleditsia triacanthos
Autor:Navarro, D.A.; Cerezo, A.S.; Stortz, C.A.
Filiación:Departamento De Química Orgánica-CIHIDECAR, Facultad De Ciencias Exactas Y Naturales, Ciudad Universitaria, 1428 Buenos Aires, Argentina
Palabras clave:β-(1 → 4)-Galactan; Arabinan; Galactomannan; Gleditsia triacanthos; Legume seeds; NMR; Chemical analysis; Ionic strength; Nuclear magnetic resonance spectroscopy; Precipitation (chemical); Seed; Room temperature; Polysaccharides; 2 propanol; galactomannan; galactose; oligosaccharide; water; anion exchange chromatography; article; chemical analysis; controlled study; endosperm; extraction; nonhuman; nuclear magnetic resonance spectroscopy; precipitation; priority journal; room temperature; seed morphology; supernatant; Fabaceae; Galactans; Magnetic Resonance Spectroscopy; Mannans; Polysaccharides; Seeds; Gleditsia; Gleditsia triacanthos
Año:2002
Volumen:337
Número:3
Página de inicio:255
Página de fin:263
DOI: http://dx.doi.org/10.1016/S0008-6215(01)00310-X
Título revista:Carbohydrate Research
Título revista abreviado:Carbohydr. Res.
ISSN:00086215
CODEN:CRBRA
CAS:araban, 11078-27-6; Galactans; galactomannan, 11078-30-1; Mannans; Polysaccharides
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00086215_v337_n3_p255_Navarro

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Citas:

---------- APA ----------
Navarro, D.A., Cerezo, A.S. & Stortz, C.A. (2002) . NMR spectroscopy and chemical studies of an arabinan-rich system from the endosperm of the seed of Gleditsia triacanthos. Carbohydrate Research, 337(3), 255-263.
http://dx.doi.org/10.1016/S0008-6215(01)00310-X
---------- CHICAGO ----------
Navarro, D.A., Cerezo, A.S., Stortz, C.A. "NMR spectroscopy and chemical studies of an arabinan-rich system from the endosperm of the seed of Gleditsia triacanthos" . Carbohydrate Research 337, no. 3 (2002) : 255-263.
http://dx.doi.org/10.1016/S0008-6215(01)00310-X
---------- MLA ----------
Navarro, D.A., Cerezo, A.S., Stortz, C.A. "NMR spectroscopy and chemical studies of an arabinan-rich system from the endosperm of the seed of Gleditsia triacanthos" . Carbohydrate Research, vol. 337, no. 3, 2002, pp. 255-263.
http://dx.doi.org/10.1016/S0008-6215(01)00310-X
---------- VANCOUVER ----------
Navarro, D.A., Cerezo, A.S., Stortz, C.A. NMR spectroscopy and chemical studies of an arabinan-rich system from the endosperm of the seed of Gleditsia triacanthos. Carbohydr. Res. 2002;337(3):255-263.
http://dx.doi.org/10.1016/S0008-6215(01)00310-X