Structure of a galactomannan from the seeds of Cassia angustifolia Vahl
| ISSN: | 0008-6215 |
|---|---|
| DOI: | 10.1016/s0008-6215(01)00104-5 |
| Přístupová URL adresa: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::790288e424b1d1542d59773e112032e5 https://doi.org/10.1016/s0008-6215(01)00104-5 |
| Rights: | CLOSED |
| Přírůstkové číslo: | edsair.doi.dedup.....790288e424b1d1542d59773e112032e5 |
| Autor: | Virendra P. Kapoor, Manjoosha Chaubey |
| Rok vydání: | 2001 |
| Předmět: |
Magnetic Resonance Spectroscopy
Intrinsic viscosity Molecular Sequence Data Cassia Oligosaccharides Mannose Cassia angustifolia Biochemistry Analytical Chemistry Mannans chemistry.chemical_compound Galactomannan Methylation analysis Botany Legume Plants Medicinal biology Organic Chemistry Galactose Periodate General Medicine biology.organism_classification Molecular Weight Carbohydrate Sequence chemistry Seeds |
| Zdroj: | Carbohydrate Research. 332:439-444 |
| ISSN: | 0008-6215 |
| DOI: | 10.1016/s0008-6215(01)00104-5 |
| Popis: | Cassia angustifolia Vahl (family: Caesalpiniaceae) is a fast growing and spreading Indian shrub of which seeds, pods and leaves are extensively used for pharmaceutical applications. The seeds have been found to be an alternative source of commercial gums. The structural aspects of the galactomannans have been determined for a better understanding of its properties. The purified seed galactomannan contains mannose:galactose in a ratio of 2.90. The average molecular weight (M(w)) is 9.66x10(4) and the intrinsic viscosity (eta) is 209 mL/g. Methylation analysis, periodate oxidation, Smith degradation and 13C NMR studies confirm that the gum has the basic structure of legume galactomannans with a main chain of (1-->4)-linked beta-D-mannopyranosyl units to which single alpha-(1-->6)-D-linked galactopyranosyl units are attached through block pattern. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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