Triagem de glicolipídios em plantas medicinais

Mendes, Beatriz Garcia; Machado, Marcos José; Falkenberg, Miriam

doi:10.1590/s0102-695x2006000400022

Cited by 38 publications

(22 citation statements)

References 40 publications

(35 reference statements)

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“…Phytochemical studies of Bauhinia genus confi rm the presence of various isolated and identifi ed compounds, including lactones, fl avonoids, terpenoids, glycolipids, steroid glycosides, steroids, tannins and quinines (Cechinel-Filho et al, 1996, Silva et al, 2000Mendes et al, 2006). Bhartiya and Gupta (1981) identifi ed, in B. purpurea seeds, the compound:…”

Section: Discussionmentioning

confidence: 99%

Determining the genotoxicity of an aqueous infusion of Bauhinia monandra leaves

Macêdo¹,

Sisenando²,

Queiroz³

et al. 2008

Rev. bras. farmacogn.

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Section: Discussionmentioning

confidence: 99%

Determining the genotoxicity of an aqueous infusion of Bauhinia monandra leaves

Macêdo¹,

Sisenando²,

Queiroz³

et al. 2008

Rev. bras. farmacogn.

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“…Various works have been carried out to identify the chemical constituents of the genus (Vera et al, 1993;Liu;Ruedi, 1996;Ngassoum et al, 2001;Abdel-Mogib et al, 2002;Kerntopf et al, 2002;Mendes et al, 2006), and to investigate their antioxidant (Burgi;Ruedi, 1993;Juch;Ruedi, 1997;Narukawa et al, 2001), antimicrobial (Rabe;Van Staden, 1998;Zollo et al, 1998;Mathpal et al, 2002;Rijo et al, 2002;Gaspar-Marques et al, 2006;Oliveira et al, 2007b) and pharmacological properties (Buznego;Perez-Saad, 1999;Cerqueira et al, 2004;Uawonggul et al, 2006). An extensive review of ethnobotanical uses of Plectranthus has been presented by Lukhoba et al (2006).…”

Section: Introductionmentioning

confidence: 99%

Stem and leaf anatomy of Plectranthus neochilus Schltr., Lamiaceae

Duarte¹,

Lopes²

2007

Rev. bras. farmacogn.

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RESUMO: "Anatomia caulinar e foliar de Plectranthus neochilus Schltr., Lamiaceae". Plectranthus neochilus Schltr. é uma erva aromática denominada boldo ou "boldo-gambá" e empregada no tratamento de insufi ciência hepática e dispepsia na medicina popular. Este trabalho investigou a anatomia caulinar e foliar, com a fi nalidade de contribuir na identifi cação dessa planta medicinal. O material botânico foi preparado de acordo com microtécnicas usuais. O caule tem secção transversal quadrangular e, em crescimento secundário no nível analisado, exibe epiderme unisseriada e numerosos tricomas. Os tricomas glandulares são capitados e peltados. Os primeiros têm pedicelo curto e unicelular ou longo e pluricelular e cabeça uni ou bicelular. Os peltados apresentam pedicelo curto e cabeça ovóide com oito células. Os tricomas tectores são pluricelulares, unisseriados e recobertos com cutícula granulosa. Observam-se colênquima angular, câmbio vascular formando fl oema em direção centrífuga e xilema para o centro, e calotas de fi bras perivasculares apostas ao fl oema. A lâmina foliar tem epiderme uniestratifi cada revestida por cutícula estriada, estômatos diacíticos em ambas as superfícies, numerosos tricomas similares aos do caule e mesofi lo homogêneo. A nervura central possui um ou dois feixes vasculares colaterais e o pecíolo apresenta vários feixes colaterais em arco aberto. Unitermos: Plectranthus neochilus, Lamiaceae, anatomia, boldo-gambá, tricomas.ABSTRACT: Plectranthus neochilus Schltr. is an aromatic herb named "boldo" or "boldogambá" and employed for treating hepatic insuffi ciency and dyspepsia in folk medicine. This paper has investigated its stem and leaf anatomy, in order to contribute for the medicinal plant identifi cation. The botanical material was prepared according to standard microtechniques. The stem has quadrangular transection and, in secondary growth at the level analyzed, shows uniseriate epidermis and numerous trichomes. The glandular ones are capitate and peltate. The former has short unicellular or long multicellular stalk and uni-or bicellular head. The latter presents short stalk and eight-celled ovoid head. The non-glandular trichomes are multicellular, uniseriate and coated with granular cuticle. It is observed angular collenchyma, cambia forming phloem outward and xylem inward, and perivascular fi ber caps next to the phloem. The blade has uniseriate epidermis coated with striate cuticle, diacytic stomata on both surfaces, numerous trichomes similar to the stem ones, and homogeneous mesophyll. The midrib shows one or two collateral bundles and the petiole has many of them distributed as an open arc.

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“…Plantas do gênero Maytenus são ricas em terpenos da classe dos tripernos (Shirota et al, 1994;Niero et al, 2006;Reyes et al, 2006;Gutieerrez et al, 2007), embora também tenham sido encontrados flavonóides (Sannomiya et al, 1998;Xie et al, 2007;Tiberti et al, 2007), glicolipídios (Mendes et al, 2006) e alcalóides (Corsino et al, 1998 . O extrato etanólico bruto, que anteriormente não apresentava atividade antimicrobiana contra a bactéria P. aeruginosa (BAC -135), apresentou, após fracionamento, atividade positiva para todas as frações obtidas, excetuando-se a hexânica (Tabela 3).…”

Section: Resultsunclassified

Perfil fitoquímico e ensaio microbiológico dos extratos da entrecasca de Maytenus rigida Mart. (Celastraceae)

Estevam¹,

Cavalcanti²,

Cambuí³

et al. 2009

Rev. bras. farmacogn.

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"Phytochemistry and microbiological assay of the bark extracts of Maytenus rigida Mart. (Celastraceae)". Maynetus rigida Mart (Celastraceae), known as "Bom-homem", "Bom-nome", "Cabelo-de-negro", "Casca-grossa" and "Pau-de-colher", is a small tree. The stem bark is used by the population in the northeast of Brazil to treat aches, infections and inflammations in general. The present work evaluated both the phytochemistry of M. rigida Mart by an analytical routine, and the antimicrobial activity of the bark extracts by the KirbyBauer modified method. Our results showed the aqueous, methanol, chloroform, ethyl acetate and hydroalcoolic extracts of M. rigida Mart has antimicrobial activity against Escherichia coli, Pseudomonas aeruginosa and Staphylococcus aureus, while the hexane extract does not have any activity. Catechins, quinones, steroids, triterpenes, saponins, flavonoids and phenolic compounds were detected by the phytochemical analysis.

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Triagem de glicolipídios em plantas medicinais

Cited by 38 publications

References 40 publications

Determining the genotoxicity of an aqueous infusion of Bauhinia monandra leaves

Determining the genotoxicity of an aqueous infusion of Bauhinia monandra leaves

Stem and leaf anatomy of Plectranthus neochilus Schltr., Lamiaceae

Perfil fitoquímico e ensaio microbiológico dos extratos da entrecasca de Maytenus rigida Mart. (Celastraceae)

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