Anatomia de madeiras da Amazônia com vistas à polpa e papel

Paula, José Elías de

doi:10.1590/1809-43921977072273

Cited by 6 publications

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“… Rubiaceae Ixora Ornamental [ 30 ] Mabea piriri Aubl. Euphorbiaceae Canudo de cachimbo - Miconia minutiflora Melastomataceae Mundururu Its fruit is used as a nutritional source [ 28 ] Momordica charantia L. Cucurbitaceae Melão-de-sabiá, melão-de-são-caetano, galinha-de-melão A decoction of a handful in a liter of water is used as a tea to treat diabetes, parasite infections, rheumatism and diarrhea [ 26 ] Ocotea glomerata (Nees) Mez Lauraceae Caneleira, louro-branco, louro-abacate, louro-bravo The leaves are used to treat hydropsy, digestive problems and high blood pressure [ 31 , 32 ] Ocotea longifolia Kunth ( Oreodaphne opifera Mart. Nees) Lauraceae Canela de cheiro Fruit oil is used to treat arthralgia and rheumatic diseases [ 33 ] Pavonia fruticosa (Mill.)…”

Section: Introductionmentioning

confidence: 99%

Cytotoxic potential of selected medicinal plants in northeast Brazil

Silva

Costa

Galvão

et al. 2016

BMC Complement Altern Med

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BackgroundGreat biodiversity is a highlight of Brazilian flora. In contrast, the therapeutic potentialities of most species used in folk medicine remain unknown. Several of these species are commonly used to treat cancer. In this study, we investigated the cytotoxic activity of 18 plants from 16 families that are found in the northeast region of Brazil.MethodsThe following species were studied: Byrsonima sericea DC. (Malpighiaceae), Cupania impressinervia Acev. Rodr. var. (revoluta) Radlk (Sapindaceae), Duranta repens Linn. (Verbenaceae), Helicostylis tomentosa (Poepp. & Endl) Rusby (Moraceae), Himatanthus bracteatus (A.DC.) Woodson (Apocynaceae), Ipomoea purga (Wender.) Hayne (Convolvulaceae), Ixora coccinea Linn. (Rubiaceae), Mabea piriri Aubl. (Euphorbiaceae), Miconia minutiflora (Melastomataceae), Momordica charantia L. (Cucurbitaceae), Ocotea glomerata (Nees) Mez (Lauraceae), Ocotea longifolia Kunth (Oreodaphne opifera Mart. Nees) (Lauraceae), Pavonia fruticosa (Mill.) Fawc. & Rendle (Malvaceae), Psychotria capitata Ruiz & Pav. (Rubiaceae), Schefflera morototoni (Aubl.) Maguire, Steyerm. & Frodin (Araliaceae), Solanum paludosum Moric. (Solanaceae), Xylopia frutescens Aubl. (Annonaceae) and Zanthoxylum rhoifolium Lam. (Rutaceae). Their dried leaves, stems, flowers or fruits were submitted to different solvent extractions, resulting in 55 extracts. After incubating for 72 h, the cytotoxicity of each extract was tested against tumor cell lines using the alamar blue assay.ResultsThe B. sericea, D. repens, H. bracteatus, I. purga, I. coccinea, M. piriri, O. longifolia and P. capitata extracts demonstrated the most potent cytotoxic activity. The chloroform soluble fractions of D. repens flowers and the hexane extract of I. coccinea flowers led to the isolation of quercetin and a mixture of α- and β-amyrin, respectively, and quercetin showed moderate cytotoxic activity.ConclusionThe B. sericea, D. repens, H. bracteatus, I. purga, I. coccinea, M. piriri, O. longifolia and P. capitata plants were identified as having potent cytotoxic effects. Further investigations are required to determine the mechanisms of cytotoxicity exhibited and their in vivo activities. This work reinforces the need to understand the therapeutics potentialities of Brazilian medicinal plants.

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Section: Introductionmentioning

confidence: 99%

Cytotoxic potential of selected medicinal plants in northeast Brazil

Silva

Costa

Galvão

et al. 2016

BMC Complement Altern Med

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“…It is known as “amoreira,” “amarelinho,” or “taiúva,” and this species presents a moderately heavy wood, which is flexible and very durable even under the most adverse conditions and is highly resistant to xylophagous organisms under conditions favorable to decay. It is used in furniture making, carpentry, and external constructions, such as in posts, pillars, and fences [ 6 , 7 ]. According to Gonzaga [ 8 ], this wood is recommended for naval construction and it is considered to be wasted when used for sleepers, piles, poles, cross arms and rustic external works.…”

Section: Introductionmentioning

confidence: 99%

Chemical Analysis and Study of Phenolics, Antioxidant Activity, and Antibacterial Effect of the Wood and Bark ofMaclura tinctoria(L.) D. Don ex Steud.

Lamounier

Cunha

Morais

et al. 2012

Evidence-Based Complementary and Alternative Medicine

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Maclura tinctoria (L.) D. Don ex Steud. has one of the highest qualities among the coefficients for Brazilian woods (up to 9.6) and resistance rates equivalent to Indian teak (Tectona grandis). In this study, the macromolecular constituents and total phenols compounds as well as the antioxidant and antibacterial activities of this wood were evaluated. Total phenols and proanthocyanidin levels were higher in wood when compared with bark levels. The antioxidant activity of wood extracts (IC50 = 18.7 μg/mL) was more effective than that of bark extracts (IC50 = 20.9 μg/mL). Wood and bark extracts revealed a high potential for inhibition of aerobic and anaerobic bacteria. The bark extracts were the most active (MIC from 20 to 60 μg/mL). Both antioxidant activity and high potential for bacteria inhibition turn these extracts promising for drug formulations, especially as antibacterial agent.

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“…1,2 Its wood has been used in carpentry, furniture manufacturing, and civil construction, as well as for extraction of morin, a yellowish pigment employed for spot testing of certain metal ions. 3,4 M. tinctoria bark infusions have been reported to be used against toothache by the Kaiowá and Guarani indigenous populations living in the Caarapó Reserve in Mato Grosso do Sul state, Brazil. 5 The resin of the plant is used for the same purpose in the Amazonian indigenous community of Porvenir, Bajo Paragua Indian Reservation, Bolivia.…”

Section: Introductionmentioning

confidence: 99%

Prenylated flavonoids from maclura tinctoria fruits

et al. 2013

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Federal do Acre, 69915-900 Rio Branco-AC, BrasilRecebido em 13/8/12; aceito em 4/2/13; publicado na web em 24/5/13 A phytochemical investigation of Maclura tinctoria fruits yielded five flavonoids, including one prenylated flavonol (licoflavonol) and four prenylated isoflavones (wighteone, derrone, alpinum isoflavone, and 6-(2,2-dimethyl-2H-chromen-6-yl)-2-(1-hydroxy-1-methylethyl)-2,3-dihydro-5H-furo[3,2-g]chromen-5-one). The structures of the isolates were established by analyzing their spectroscopic data. Compound 6-(2,2-dimethyl-2H-chromen-6-yl)-2-(1-hydroxy-1-methylethyl)-2,3-dihydro-5H-furo[3,2-g]chromen-5-one is new and the other isolates are described for the first time in this species.

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Anatomia de madeiras da Amazônia com vistas à polpa e papel

Cited by 6 publications

References 0 publications

Cytotoxic potential of selected medicinal plants in northeast Brazil

Cytotoxic potential of selected medicinal plants in northeast Brazil

Chemical Analysis and Study of Phenolics, Antioxidant Activity, and Antibacterial Effect of the Wood and Bark ofMaclura tinctoria(L.) D. Don ex Steud.

Prenylated flavonoids from maclura tinctoria fruits

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