Influence of environmental factors on the concentration of phenolic compounds in leaves of Lafoensia pacari A.St.-Hil. (Lythraceae)
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Data
2011-12
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Resumo
Lafoensia pacari A. St.-Hil., Lythraceae, a plant from the Cerrado
known as pacari or dedaleiro, is widely used as an antipyretic, wound healing, anti inflammatory, antidiarrheal and in the treatment of gastritis and cancer. Notable
among the metabolite groups identified in leaves of L. pacari are the polyphenols,
such as tannins and flavonoids, related to the pharmacological activities of pacari.
Studies on the influence of environmental factors over production of major groups
of secondary metabolites in pacari are important because they contribute data for
its cultivation and harvest, and establish quantitative parameters of secondary
metabolites in the plant drug. The objective of this study was to evaluate the
influence of environmental factors on concentrations of phenolic metabolites in
the leaves of L. pacari. Compounds quantified in the leaves were: total phenols,
tannins by protein precipitation, hydrolysable tannins, total flavonoids, ellagic acid
and mineral nutrients, while soil fertility was also analyzed, all over a period of one
year. The data were analyzed using multivariate analysis, and the results suggest
that metabolite concentrations in the leaves of this plant are influenced by seasonal
factors, in particular the temperature and foliar micronutrients (Cu, Fe, Mn, Zn).
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Mineral nutrients, Multivariate statistical, Analysis seasonality, Secondary metabolism
Citação
SAMPAIO, Bruno Leite et al. Influence of environmental factors on the concentration of phenolic compounds in leaves of Lafoensia pacari A.St.-Hil. (Lythraceae). Revista Brasileira de Farmacognosia, Curitiba, v. 21, n. 6, p. 1127-1137, Nov./Dec.2011.