Journal of the Brazilian Chemical Society | |
Mineral composition of Lippia alba (Mill.) N.E. Brown leaves | |
Pedro S. Dos Reis2  Idalia Helena S. Estevam2  Wagna P. C. Dos Santos1  Maria Graças A. Korn1  Jorge M. David1  Juceni P. David1  Rennan G. O. Araújo1  Maria Fernanda Pimentel1  Sérgio L. C. Ferreira1  | |
[1] ,Universidade do Estado da Bahia Departamento de Ciências Exatas e da Terra Salvador BA ,Brazil | |
关键词: Lippia alba; mineral composition; multivariate analysis; | |
DOI : 10.1590/S0103-50532010001000015 | |
来源: SciELO | |
【 摘 要 】
Leaves of Lippia alba (Mill.) N.E. Brown are used for the preparation of tea infusions that are employed in folk medicine. In this paper, the mineral composition of Lippia alba (Mill.) leaves, collected from different Brazilian cities, was evaluated. The samples were digested using nitric acid and hydrogen peroxide on a hot plate and were analyzed using inductively coupled plasma optical emission spectrometry (ICP OES). SRM 1515 apple leaves from NIST were used for checking accuracy. The results demonstrated that calcium, magnesium and phosphorus have average contents of 1,950, 2,856 and 2,335 mg 100 g-1, respectively, and concentration ranges of 767-3,887, 314-8,591 and 247-9,214 mg 100 g-1, respectively. The microelements barium, zinc, copper, iron, manganese and nickel have average contents of 2.16, 2.95, 0.94, 11.2, 4.25 and 0.09 mg 100 g-1, respectively, and concentration ranges of 0.66-7.1, 1.35-6.3, 0.33-1.7, 0.98-34, 0.82-7.4 and 0.03-0.15 mg 100 g−1, respectively. The data were also evaluated using principal component analysis (PCA).
【 授权许可】
CC BY
All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License
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