Estudo farmacognóstico das folhas de Pimenta pseudocaryophyllus (Gomes) L.R. Landrum - Myrtaceae
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Data
2008-06
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Resumo
The goal of this research was to obtain quality control
parameters for the identifi cation of the plant drug of Pimenta pseudocaryophyllus (Gomes) L. R.
Landrum that occurs in Brazilian savannah. So, two samples were collected, one in Minas Gerais
state - Brazil, and the other one in Brasilia city - DF - Brazil, and the vouchers were deposited
in the UFG Herbarium code number UFG-27159 and Ezechias Paulo Heringer Herbarium code
number 21745-0, respectively. Part of the botanical material in both samples was prepared for
microscopic analysis. The other one was air-dried, crushed to powder and used for phytochemical
screening. The study has shown that P. pseudocaryophyllus leaves are hypostomatic, there are
abundant unicellular trichomes in abaxial surface, there are secretory cavities with oily content
and epidermal cells have thick wall. Tannins, phenolic compounds and fl avonoids were detected
in the phytochemical screening. The tannins had been quantifi ed by different methods involving
colorimetric and protein precipitation reactions, getting different results. This fact calls the
attention for the necessity of specifying the method used together with the minimum tannins
limit established. The results confi gure as important parameters for the quality control of the
plant material and denote that the species in study take an important potential as herbal medicine
that it deserves to be investigated in pharmacologic and toxicologic studies.
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Palavras-chave
Controle de qualidade, Pimenta pseudocaryophyllus, Morfo-anatomia, Prospecção fitoquímica, Quality pseudocaryophyllus, Morpho-anatomy, Control, Phytochemical screening, Pimenta pseudocaryophyllus
Citação
PAULA, Joelma A.M. et al. Estudo farmacognóstico das folhas de Pimenta pseudocaryophyllus (Gomes) L.R. Landrum - Myrtaceae. Revista Brasileira de Farmacognosia, Curitiba, v. 18, n. 2, p. 265-278, abr./jun. 2008.