Survey of argentine medicinal plants — Folklore and phytochemical — Screening. II

Bandoni, Arnaldo L.; Mendiondo, María Elena; Rondina, Rubén Víctor Daniel; Coussio, J.

doi:10.1007/bf02862962

Cited by 65 publications

(40 citation statements)

References 18 publications

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“…In Ma-deira, fruits of E. uniflora are eaten for intestinal troubles (Rivera & Obón 1995). Fruits and leaves are also used for their astringent qualities, and are active against high blood pressure (Bandoni et al 1972). Water decoctions of E. uniflora leaves are used in Paraguay to lower cholesterol and blood pressure (Ferro et al 1988), and have a highly significant anti-inflammatory action (Schapoval, et al 1994).…”

Section: The Myrtle Familymentioning

confidence: 99%

Antioxidant Potential of Seven Myrtaceous Fruits

Reynertson¹,

Basile²,

Kennelly³

2005

Ethnobot. Res. App.

105

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Many fruits of the Myrtaceae have a rich history of use both as edibles and as traditional medicines in divergent ethnobotanical practices throughout the tropical and subtropical world. From South America to Southeast Asia, these fruits have been used for a wide variety of ailments, including cough, diabetes, dysentery, inflammation and ringworm. These same fruits are also used to make many food products. Based on information regarding ethnomedical use, known phytochemistry, fruit color, popularity as edibles and availability, the fruits of several edible species from the subtribe Eugeniinae have been selected for phytochemical analysis in an attempt to discover new antioxidants. The fruits of six species in this group have shown a strong antioxidant activity in the 1,1-diphenyl-2-picrylhydrazyl chemical assay. The UV absorbance spectrum of the most active compound in Eugenia uniflora L. indicates that it is a flavonoid. Polyphenolic compounds like flavonoids have an enormous range of biological activity and are known to inhibit oxidative damage in vivo better than the classical vitamin antioxidants. In plants, they protect against lipid peroxidation and UV damage that can affect tropical fruits growing under severe conditions including high heat and intense sunlight.

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Section: The Myrtle Familymentioning

confidence: 99%

Antioxidant Potential of Seven Myrtaceous Fruits

Reynertson¹,

Basile²,

Kennelly³

2005

Ethnobot. Res. App.

105

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“…1 Vale ressaltar que as plantas são fontes naturais de uma infinidade de substâncias químicas que são biossintetizadas com várias finalidades, entre elas, protegê-las contra predadores ou atrair polinizadores. 2 Estudos realizados com espécies de Croton relatam a presença de alcalóides, [3][4][5][6][7][8][9][10][11] flavonóides, 12 esteróides e triterpenóides, 12,13 saponinas 14,15 e taninos. 16 Os diterpenos, principais constituintes do gênero, possuem atividades biológicas, funções ecológicas e constituem protótipos na síntese de substâncias bioativas.…”

Section: Introductionunclassified

Diterpenos casbanos e acetofenonas de Croton nepetaefolius (Euphorbiaceae)

Santos¹,

Mesquita²,

Lemos³

et al. 2008

Quím. Nova

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Recebido em 4/6/07; aceito em 6/9/07; publicado na web em 26/2/08 CASBANE DITERPENES AND ACETOPHENONES OF Croton nepetaefolius (EUPHORBIACEAE). Croton nepetaefolius is an aromatic plant native to the northeast of Brazil where it is extensively used in folk medicine as a sedative, orexigen and antispasmodic agent. The present work deals with the chromatographic analysis of the ethanolic extract of Croton nepetaefolius stalk. It allowed the isolation and characterization of two diterpenoids named 1,4-dihydroxy-2E,6E,12E-trien-5-one-casbane and 4-hydroxy-2E,6E,12E-5-one-casbane, two acetophenones named 2-hydroxy-4,6-dimethoxyacetophenone and 2-hydroxy-3,4,6-trimethoxyacetophenone and the steroids 3-O-β-D-glucopiranosylsitosterol and a mixture of β-sitosterol and stigmasterol. Structural elucidation was done on the basis of spectral data, mainly high field NMR and EIMS.Keywords: casbane diterpenoid; acetophenones; Croton nepetaefolius. INTRODUÇÃOO uso de plantas com fins terapêuticos é uma tradição milenar presente nas culturas de várias nações constituindo, ainda hoje, um recurso alternativo de grande aceitação, não somente nos centros urbanos, mas sobretudo nas pequenas comunidades rurais. Este comportamento vem chamando a atenção da comunidade científi-ca no sentido de comprovar a eficácia e promover o uso seguro desses recursos naturais.1 Vale ressaltar que as plantas são fontes naturais de uma infinidade de substâncias químicas que são biossintetizadas com várias finalidades, entre elas, protegê-las contra predadores ou atrair polinizadores.

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“…Moreover, in the leaves were found and identified flavonoids as non-watersoluble aglycones, water-soluble glycosides, and sulfated flavonoids (Mabry et al 1977). The presence of saponins and leucoantocianidines was also reported (Bandoni et al 1971). Among flavonoids were described: dihydrosyringetin, larragenine A, three O-glycosides from quercitin, myricetin, and a C glyoside from apigenin.…”

Section: Resultsmentioning

confidence: 80%

Uso potencial de extractos de Larrea divaricata con bajo contenido de NDGA como antioxidantes en comidas

et al. 2011

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Larrea divaricata Cav. is widely distributed in Argentina. Aqueous extract, of its leaves, has documented antitumoral and immunomodulatory activities. In this study, the antioxidant activity of aqueous extract and a component, nordihydroguaiaretic acid was determined and compared using different assays. Both the aqueous extract and nordihydroguaiaretic acid exhibited antioxidant activity. However, results show that it is very likely that compounds other than nordihydroguaiaretic acid could be involved in the antioxidant activity of the extract. Since nordihydroguaiaretic acid is nephrotoxic and hepatotoxic agent, it is important to direct efforts toward the potential use of low-nordihydroguaiaretic acid L. divaricata extracts as antioxidant in foods.

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Survey of argentine medicinal plants — Folklore and phytochemical — Screening. II

Cited by 65 publications

References 18 publications

Antioxidant Potential of Seven Myrtaceous Fruits

Antioxidant Potential of Seven Myrtaceous Fruits

Diterpenos casbanos e acetofenonas de Croton nepetaefolius (Euphorbiaceae)

Uso potencial de extractos de Larrea divaricata con bajo contenido de NDGA como antioxidantes en comidas

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