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Abstract:

The production of 3,6-anhydrogalactose units from galactose 6-sulfated residues by alkaline treatment is an important reaction undergone by many red seaweed galactans, used commercially to enhance their gelation behavior, and thus their industrial value. A novel technique utilizing microwave irradiation to carry out the alkaline modification of three structurally different galactans is described. The reaction is accelerated several times with respect to that performed with conventional heating. The effect of the sodium hydroxide concentration was investigated, showing a higher rate around a 2 M base concentration. © 2005 Elsevier Ltd. All rights reserved.

Registro:

Documento: Artículo
Título:Microwave-assisted alkaline modification of red seaweed galactans
Autor:Navarro, D.A.; Stortz, C.A.
Filiación:Departamento de Química Orgánica-CIHIDECAR, Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria, 1428 Buenos Aires, Argentina
Palabras clave:Agaran; Alkaline treatment; Carrageenan; Microwave irradiation; Red seaweed; Alkalinity; Microwaves; Sodium compounds; Alkaline modification; Seaweed galactans; Sodium hydroxide; Seaweed; algae
Año:2005
Volumen:62
Número:2
Página de inicio:187
Página de fin:191
DOI: http://dx.doi.org/10.1016/j.carbpol.2005.07.009
Título revista:Carbohydrate Polymers
Título revista abreviado:Carbohydr Polym
ISSN:01448617
CODEN:CAPOD
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01448617_v62_n2_p187_Navarro

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Citas:

---------- APA ----------
Navarro, D.A. & Stortz, C.A. (2005) . Microwave-assisted alkaline modification of red seaweed galactans. Carbohydrate Polymers, 62(2), 187-191.
http://dx.doi.org/10.1016/j.carbpol.2005.07.009
---------- CHICAGO ----------
Navarro, D.A., Stortz, C.A. "Microwave-assisted alkaline modification of red seaweed galactans" . Carbohydrate Polymers 62, no. 2 (2005) : 187-191.
http://dx.doi.org/10.1016/j.carbpol.2005.07.009
---------- MLA ----------
Navarro, D.A., Stortz, C.A. "Microwave-assisted alkaline modification of red seaweed galactans" . Carbohydrate Polymers, vol. 62, no. 2, 2005, pp. 187-191.
http://dx.doi.org/10.1016/j.carbpol.2005.07.009
---------- VANCOUVER ----------
Navarro, D.A., Stortz, C.A. Microwave-assisted alkaline modification of red seaweed galactans. Carbohydr Polym. 2005;62(2):187-191.
http://dx.doi.org/10.1016/j.carbpol.2005.07.009