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Monomeric composition and linkage analysis of the polysaccharides present in the infusions of Fraxinus angustifolia leaves
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Orientador(es)
Resumo(s)
In the Trás-os-Montes region, the use of infusions of Fraxinus angustifolia dried leaves as a protection against high levels of cholesterol, blood pressure and uric acid is widespread. Pectic polysaccharides isolated from the infusions of some medicinal plants have been reported as biologically active [1,2]. Pectic poly-saccharides have been described as structurally complex polymers, exhibiting different polymeric building blocks: homogalacturonans (HG), rhamnogalacturonans-I (RG-I), rhamnogalacturonans-II (RG-II) and xylogalacturonans (XG) [3]. The backbone of RG-I can be partly substituted with various side chains, such as arabinans, type-I and type-II arabinogalactans (AG-I and AG-II). The aim of this work is to provide a first insight of the nature of the pectic polysaccharides present in the infusions of F. angustifolia dried leaves.
Descrição
Palavras-chave
Polysaccharides Infusions
Contexto Educativo
Citação
Martins, Vitor M. R.; Coimbra, Manuel A. (2012). Monomeric composition and linkage analysis of the polysaccharides present in the infusions of fraxinus angustifolia leaves. In 9th International Meeting of the Portuguese Carbohydrate Chemistry Group and 5th Iberian Carbohydrate Meeting. Vila Real