Environmental factors affecting the concentration of phenolic compounds in Myrcia tomentosa leaves

Revista Brasileira de Farmacognosia

Leonardo L. Borges¹  Suzana F. Alves¹  Bruno L. Sampaio¹  Edemilson C. Conceição¹  Maria Teresa F. Bara¹  José R. Paula¹ 

[1] ,Universidade Federal de Goiás Faculdade de Farmácia Laboratório de Pesquisa de Produtos Naturais,Brazil

关键词: environmental effects;    multivariate analysis;    Myrtaceae;    secondary metabolism;   

DOI  :  10.1590/S0102-695X2013005000019

来源: SciELO

【 摘 要 】

Myrcia tomentosa (Aubl.) DC., Myrtaceae, found in Central Brazilian Cerrado and popularly known as "goiaba-brava", belongs to the Myrcia genus, which has several species with medicinal properties such as: hypoglycemic, diuretic, hypotensive, antidiarrheal, antimicrobial and antitumor. The present study aimed to analyzed the environmental influence on concentrations of phenolic metabolites in M. tomentosa leaves. Compounds assayed in the leaves were: total phenols, tannins by protein precipitation, hydrolysable tannins and total flavonoids and mineral nutrients, while soil fertility was also analyzed, all over during one year. The results were submitted to Pearson Correlation Analysis and stepwise Multiple Regression Analysis to investigate the relationship between phenolics and environment data. Analysis of variance and Cluster Analysis allowed indicated a high variability in samples from different sites. The results obtained suggests that content of phenolics from M. tomentosa leaves are influenced by environmental factors, particularly some foliar nutrients (N1, Ca1 and Mn1), soil nutrients (Ca s and Ks) and Rainfall.

【 授权许可】

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