The carrageenans of gigartina skottsbergii s. et g. Part III. methylation analysis of the fraction precipitated with 0.3-0.4m potassium chloride
The fraction of carrageenan from the red seaweed Gigartina skottsbergii that is precipitated with 0.3-0.4m potassium chloride has been studied by methylation analysis. The results agree qualitatively with the structure previously suggested, except that 3-linked D-galactose 4-sulfate residues are pre...
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todo:paper_00086215_v26_n2_p335_Cerezo2023-10-03T14:06:41Z The carrageenans of gigartina skottsbergii s. et g. Part III. methylation analysis of the fraction precipitated with 0.3-0.4m potassium chloride Cerezo, A.S. The fraction of carrageenan from the red seaweed Gigartina skottsbergii that is precipitated with 0.3-0.4m potassium chloride has been studied by methylation analysis. The results agree qualitatively with the structure previously suggested, except that 3-linked D-galactose 4-sulfate residues are present rather than the corresponding 2-sulfate. For every ten D-galactose residues linked at C-3, there are, on the average, six residues of 3,6-anhydro-D-galactose linked at C-4 and ten sulfate groups (five as 3,6-anhydro-D-galactose 2-sulfate and five as D-galactose 4-sulfate residues). © 1973. Fil:Cerezo, A.S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00086215_v26_n2_p335_Cerezo |
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Universidad de Buenos Aires |
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I-28 |
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R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
description |
The fraction of carrageenan from the red seaweed Gigartina skottsbergii that is precipitated with 0.3-0.4m potassium chloride has been studied by methylation analysis. The results agree qualitatively with the structure previously suggested, except that 3-linked D-galactose 4-sulfate residues are present rather than the corresponding 2-sulfate. For every ten D-galactose residues linked at C-3, there are, on the average, six residues of 3,6-anhydro-D-galactose linked at C-4 and ten sulfate groups (five as 3,6-anhydro-D-galactose 2-sulfate and five as D-galactose 4-sulfate residues). © 1973. |
format |
JOUR |
author |
Cerezo, A.S. |
spellingShingle |
Cerezo, A.S. The carrageenans of gigartina skottsbergii s. et g. Part III. methylation analysis of the fraction precipitated with 0.3-0.4m potassium chloride |
author_facet |
Cerezo, A.S. |
author_sort |
Cerezo, A.S. |
title |
The carrageenans of gigartina skottsbergii s. et g. Part III. methylation analysis of the fraction precipitated with 0.3-0.4m potassium chloride |
title_short |
The carrageenans of gigartina skottsbergii s. et g. Part III. methylation analysis of the fraction precipitated with 0.3-0.4m potassium chloride |
title_full |
The carrageenans of gigartina skottsbergii s. et g. Part III. methylation analysis of the fraction precipitated with 0.3-0.4m potassium chloride |
title_fullStr |
The carrageenans of gigartina skottsbergii s. et g. Part III. methylation analysis of the fraction precipitated with 0.3-0.4m potassium chloride |
title_full_unstemmed |
The carrageenans of gigartina skottsbergii s. et g. Part III. methylation analysis of the fraction precipitated with 0.3-0.4m potassium chloride |
title_sort |
carrageenans of gigartina skottsbergii s. et g. part iii. methylation analysis of the fraction precipitated with 0.3-0.4m potassium chloride |
url |
http://hdl.handle.net/20.500.12110/paper_00086215_v26_n2_p335_Cerezo |
work_keys_str_mv |
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1807317683894484992 |