Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/28882
Título : Tree crown variation and seasonal in the phenolic compounds content of Stryphnodendron adstringens (Mart) coville leaves
Autor: Ribeiro, Alessandra de Oliveira
Goulart, Selma Lopes
Mori, Fábio Akira
Castro, Ana Hortência Fonseca
Palavras-chave: Phenolic compounds
Barbatimão - Tannins
Phenol levels
Compostos fenólicos
Barbatimão - Taninos
Níveis de fenol
Publicador: Scientific Research Publishing
Data da publicação: 2014
Referência: RIBEIRO, A. de O. et al. Tree crown variation and seasonal in the phenolic compounds content of Stryphnodendron adstringens (Mart) coville leaves. American Journal of Plant Sciences, [S. l.], v. 5, n. 19, p. 2904-2912, Sept. 2014.
Abstract: The aim of this study was to compare phenolic compounds contents between different positions within the crown and between collection periods, and to evaluate the tannin contents by the Folin-Ciocalteu method. The collections were performed in Lavras, in the southern region of the Brazilian state Minas Gerais. The experiment was conducted in a completely randomized design (factorial 3 × 4); the first factor being the position (base, middle, top); and the months, the second factor (February, May, September and December). We verified that the leaves of S. adstringens present higher total phenolic and tannin contents at the top (23.05% and 18.23%) and base (21.42% and 16.61%) of the crown, in May (25.79% and 20.85%) and September (25.57% and 20.50%), respectively. There was no difference in the residual phenol and flavonoid contents between the positions within the crown or in the months of collection. These facts suggest that within the crown and climatic changes may be one of the factors affecting phenol levels in Stryphnodendron adstringens.
URI: http://repositorio.ufla.br/jspui/handle/1/28882
Idioma: en_US
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