Influence of environmental factors on the concentration of phenolic compounds in leaves of Lafoensia pacari

Revista Brasileira de Farmacognosia

Sampaio, Bruno Leite¹  Ferri, Pedro Henrique¹  Paula, José Realino de¹  Santos, Suzana da Costa¹  Universidade Federal de Goiás, Goiânia, Brazil¹  Bara, Maria Teresa F.¹ 

关键词: mineral nutrients multivariate statistical analysis seasonality secondary metabolism;   

DOI  :  10.1590/S0102-695X2011005000177

来源: Sociedade Brasileira de Farmacognosia

【 摘 要 】

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).

【 授权许可】

Unknown