The Constitution of a Galactomannan from the Seed of Gleditsia amorphoides
A galactomannan composed of 28.6% D-galactose and 71.4% D-mannose was isolated in 30% yield from the seeds of Gleditsia amorphoides. Periodate oxidation showed that all the mannose and galactose units were attacked since hydrolysis of the reduced oxopolysaccharide gave only glycerol (1 mole) and ery...
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todo:paper_00223263_v30_n3_p924_Cerezo2023-10-03T14:31:12Z The Constitution of a Galactomannan from the Seed of Gleditsia amorphoides Cerezo, A.S. A galactomannan composed of 28.6% D-galactose and 71.4% D-mannose was isolated in 30% yield from the seeds of Gleditsia amorphoides. Periodate oxidation showed that all the mannose and galactose units were attacked since hydrolysis of the reduced oxopolysaccharide gave only glycerol (1 mole) and erythritol (2.7 moles). The periodate consumption was 4.8 moles for every four hexose residues and at the same time 1 mole of formic acid was produced. Hydrolysis of the methylated polysaccharide yielded 2,3,4,6-tetra-O-methyl-D-galactose (1 mole), 2,3,6-tri-O-methyl-D-mannose (2.1 moles), and 2,3-di-O-methyl-D-mannose (1.1 moles). © 1965, American Chemical Society. All rights reserved. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00223263_v30_n3_p924_Cerezo |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| description |
A galactomannan composed of 28.6% D-galactose and 71.4% D-mannose was isolated in 30% yield from the seeds of Gleditsia amorphoides. Periodate oxidation showed that all the mannose and galactose units were attacked since hydrolysis of the reduced oxopolysaccharide gave only glycerol (1 mole) and erythritol (2.7 moles). The periodate consumption was 4.8 moles for every four hexose residues and at the same time 1 mole of formic acid was produced. Hydrolysis of the methylated polysaccharide yielded 2,3,4,6-tetra-O-methyl-D-galactose (1 mole), 2,3,6-tri-O-methyl-D-mannose (2.1 moles), and 2,3-di-O-methyl-D-mannose (1.1 moles). © 1965, American Chemical Society. All rights reserved. |
| format |
JOUR |
| author |
Cerezo, A.S. |
| spellingShingle |
Cerezo, A.S. The Constitution of a Galactomannan from the Seed of Gleditsia amorphoides |
| author_facet |
Cerezo, A.S. |
| author_sort |
Cerezo, A.S. |
| title |
The Constitution of a Galactomannan from the Seed of Gleditsia amorphoides |
| title_short |
The Constitution of a Galactomannan from the Seed of Gleditsia amorphoides |
| title_full |
The Constitution of a Galactomannan from the Seed of Gleditsia amorphoides |
| title_fullStr |
The Constitution of a Galactomannan from the Seed of Gleditsia amorphoides |
| title_full_unstemmed |
The Constitution of a Galactomannan from the Seed of Gleditsia amorphoides |
| title_sort |
constitution of a galactomannan from the seed of gleditsia amorphoides |
| url |
http://hdl.handle.net/20.500.12110/paper_00223263_v30_n3_p924_Cerezo |
| work_keys_str_mv |
AT cerezoas theconstitutionofagalactomannanfromtheseedofgleditsiaamorphoides AT cerezoas constitutionofagalactomannanfromtheseedofgleditsiaamorphoides |
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1807322926835302400 |