Mineral composition of Lippia alba (Mill.) N.E. Brown leaves

Journal of the Brazilian Chemical Society

David, Juceni P.¹  Araújo, Rennan G. O.¹  Universidade do Estado da Bahia, Salvador, Brazil¹  Centro Federal de Educação Tecnológica da Bahia, Salvador, Brazil¹  Pimentel, Maria Fernanda¹  Reis, Pedro S. dos¹  Korn, Maria Graças A.¹  Santos, Wagna P. C. dos¹  Universidade Federal de Pernambuco, Recife, Brazil¹  Ferreira, Sérgio L. C.¹  Estevam, Idalia Helena S.¹  Universidade Federal da Bahia, Salvador, Brazil¹  David, Jorge M.¹ 

关键词: Lippia alba;    mineral composition;    multivariate analysis;   

DOI  :  10.1590/S0103-50532010001000015

学科分类：化学（综合）

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】

Unknown