Publications by authors named "Gladys Leon de Pinto"

Article Synopsis
  • - The study investigates the structure of gum from Acacia tortuosa, which is highly soluble in water and mainly composed of an arabinogalactan-protein complex.
  • - Using a combination of classical chemical methods, size exclusion chromatography, and NMR spectroscopy, researchers determined that the gum is a highly branched arabinogalactan type II with various sugar residues, including unique features not previously reported.
  • - The findings suggest the presence of a protein complex that binds poorly to certain reagents, and indicate that the carbohydrate component may link to a protein through specific sugar modifications.
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The seeds of Hymenaea courbaril (Caesalpiniace), a species widely disseminated in Venezuela, produce a clear and soluble gum. The dietetic fiber content (60.7%) of the gum was used as a good criterion for the formulation of integral bread in a diet for dyslipidemia patients.

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The tree Spondias dulcis, located in Venezuela, exudes a light-brown gum. The polysaccharide, isolated from the original gum, contains galactose, arabinose, mannose, rhamnose, glucuronic acid, and its 4-O-methyl derivative. Application of chemical methods, in combination with 1D and 2D NMR spectroscopy afforded interesting structural features of the gum polysaccharide.

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