Isolation of xylogalactans from the Corallinales: Influence of the extraction method on yields and compositions

An already studied seaweed, Corallina officinalis and two other species of the red seaweed order Corallinales, i.e. Bossiella orbigniana and Jania rubens, were extracted using three different standard procedures: the method of Usov, which destroys the calcium carbonate cover by the addition of conce...

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Autores principales:	Navarro, Diego Alberto, Stortz, Carlos Arturo
Publicado:	2002
Materias:	Agaran Bossiella Co rallina Corallinaceae Extraction Jania Rhodophyta Xylogalactans Degradation Hot water heating Polysaccharides Acid degradation Seaweed algae Bossiella orbigniana Corallina Corallina officinalis Corallinales Jania rubens Rallina
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01448617_v49_n1_p57_Navarro http://hdl.handle.net/20.500.12110/paper_01448617_v49_n1_p57_Navarro
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_01448617_v49_n1_p57_Navarro
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spelling	paper:paper_01448617_v49_n1_p57_Navarro2023-06-08T15:12:09Z Isolation of xylogalactans from the Corallinales: Influence of the extraction method on yields and compositions Navarro, Diego Alberto Stortz, Carlos Arturo Agaran Bossiella Co rallina Corallinaceae Extraction Jania Rhodophyta Xylogalactans Degradation Extraction Hot water heating Polysaccharides Acid degradation Seaweed algae Bossiella Bossiella orbigniana Corallina Corallina officinalis Corallinaceae Corallinales Jania Jania rubens Rallina Rhodophyta An already studied seaweed, Corallina officinalis and two other species of the red seaweed order Corallinales, i.e. Bossiella orbigniana and Jania rubens, were extracted using three different standard procedures: the method of Usov, which destroys the calcium carbonate cover by the addition of concentrated acid, the method of Cases, which applies controlled acid degradation of this cover, and the method of Takano, which avoids an acid medium, and uses hot water. The three methods extract similar amounts of products, but those using acid give better yields of xylogalactans, without evidence for degradation. However, subsequent hot water extraction shows that the traces of acid present when applying the method of Usov yield partially degraded products at this stage. The characteristics of the xylogalactans of the newly studied seaweeds are similar to those previously studied. However, in Jania rubens significant amounts of 3,6-anhydrogalactose, and in Bossiella orbigniana small amounts of the D-enantiomer of 2-O-methylgalactose were found. © 2002 Elsevier Science Ltd. All rights reserved. Fil:Navarro, D.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Stortz, C.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2002 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01448617_v49_n1_p57_Navarro http://hdl.handle.net/20.500.12110/paper_01448617_v49_n1_p57_Navarro
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Agaran Bossiella Co rallina Corallinaceae Extraction Jania Rhodophyta Xylogalactans Degradation Extraction Hot water heating Polysaccharides Acid degradation Seaweed algae Bossiella Bossiella orbigniana Corallina Corallina officinalis Corallinaceae Corallinales Jania Jania rubens Rallina Rhodophyta
spellingShingle	Agaran Bossiella Co rallina Corallinaceae Extraction Jania Rhodophyta Xylogalactans Degradation Extraction Hot water heating Polysaccharides Acid degradation Seaweed algae Bossiella Bossiella orbigniana Corallina Corallina officinalis Corallinaceae Corallinales Jania Jania rubens Rallina Rhodophyta Navarro, Diego Alberto Stortz, Carlos Arturo Isolation of xylogalactans from the Corallinales: Influence of the extraction method on yields and compositions
topic_facet	Agaran Bossiella Co rallina Corallinaceae Extraction Jania Rhodophyta Xylogalactans Degradation Extraction Hot water heating Polysaccharides Acid degradation Seaweed algae Bossiella Bossiella orbigniana Corallina Corallina officinalis Corallinaceae Corallinales Jania Jania rubens Rallina Rhodophyta
description	An already studied seaweed, Corallina officinalis and two other species of the red seaweed order Corallinales, i.e. Bossiella orbigniana and Jania rubens, were extracted using three different standard procedures: the method of Usov, which destroys the calcium carbonate cover by the addition of concentrated acid, the method of Cases, which applies controlled acid degradation of this cover, and the method of Takano, which avoids an acid medium, and uses hot water. The three methods extract similar amounts of products, but those using acid give better yields of xylogalactans, without evidence for degradation. However, subsequent hot water extraction shows that the traces of acid present when applying the method of Usov yield partially degraded products at this stage. The characteristics of the xylogalactans of the newly studied seaweeds are similar to those previously studied. However, in Jania rubens significant amounts of 3,6-anhydrogalactose, and in Bossiella orbigniana small amounts of the D-enantiomer of 2-O-methylgalactose were found. © 2002 Elsevier Science Ltd. All rights reserved.
author	Navarro, Diego Alberto Stortz, Carlos Arturo
author_facet	Navarro, Diego Alberto Stortz, Carlos Arturo
author_sort	Navarro, Diego Alberto
title	Isolation of xylogalactans from the Corallinales: Influence of the extraction method on yields and compositions
title_short	Isolation of xylogalactans from the Corallinales: Influence of the extraction method on yields and compositions
title_full	Isolation of xylogalactans from the Corallinales: Influence of the extraction method on yields and compositions
title_fullStr	Isolation of xylogalactans from the Corallinales: Influence of the extraction method on yields and compositions
title_full_unstemmed	Isolation of xylogalactans from the Corallinales: Influence of the extraction method on yields and compositions
title_sort	isolation of xylogalactans from the corallinales: influence of the extraction method on yields and compositions
publishDate	2002
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01448617_v49_n1_p57_Navarro http://hdl.handle.net/20.500.12110/paper_01448617_v49_n1_p57_Navarro
work_keys_str_mv	AT navarrodiegoalberto isolationofxylogalactansfromthecorallinalesinfluenceoftheextractionmethodonyieldsandcompositions AT stortzcarlosarturo isolationofxylogalactansfromthecorallinalesinfluenceoftheextractionmethodonyieldsandcompositions
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Isolation of xylogalactans from the Corallinales: Influence of the extraction method on yields and compositions

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