Flavonoids ofBignoniaceae from the “cerrado” and their possible taxonomic significance

Blatt, C T T; Santos, Márcia D. dos; Salatino, Antônio

doi:10.1007/bf00985673

Cited by 35 publications

(30 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Chemical studies on the constituents of Jacaranda have only been reported for six species: Jacaranda acutifolia (Ferguson and Lien, 1982), Jacaranda caucana (Ogura et al, 1976(Ogura et al, , 1977a, Jacaranda copaia (Sauvain et al, 1993), Jacaranda decurrens (Blatt et al, 1998;Varanda et al, 1992), Jacaranda filicifolia (Ali and Houghton, 1999) and Jacaranda mimosifolia (Chisholm and Hopkins, 1962;Sankara-Subramanian et al, 1972, 1973Prakash and Garg, 1980;Moharram and Marzouk, 2007). The compounds have been identified as triterpenes (Fig.…”

Section: Chemical Constituentsmentioning

confidence: 93%

“…Results showed an activity against Bacillus cereus (minimal inhibitory concentrations (MIC) of 2.9, 3.3 and 4.0 g/mL for the hexane, ethanol and water extracts, respectively), for the hexane and water extracts against Escherichia coli (MIC of 2.3 and 14.4 g/mL) and for the ethanol extract against Staphylococcus aureus (MIC of 2.8 g/mL) (Rojas et al, 2006). (Blatt et al, 1998). b Isolated from the bark of Jacaranda acutifolia (Ferguson and Lien, 1982).…”

Section: Biological Activity Of Crude Extractsmentioning

confidence: 98%

See 1 more Smart Citation

Jacaranda—An ethnopharmacological and phytochemical review

Gachet

Schühly

2009

Journal of Ethnopharmacology

View full text Add to dashboard Cite

Section: Chemical Constituentsmentioning

confidence: 93%

Section: Biological Activity Of Crude Extractsmentioning

confidence: 98%

Jacaranda—An ethnopharmacological and phytochemical review

Gachet

Schühly

2009

Journal of Ethnopharmacology

View full text Add to dashboard Cite

“…Other studies have indicated the presence of carotenoids in the fl owers (Harborne, 1967) and rutin in the leaves (Blatt et al, 1998). It has been demonstrated that the compounds acacetin-7-O-β-glucopyranoside and β-sitosterol showed anti-infl ammatory activity (Gupta et al, 1980;Shen et al, 2010).…”

Section: Introductionmentioning

confidence: 97%

“…) Miers are known to be of medicinal value (Emmanuel et al, 2010). P. venusta is popularly known in Brazil as "cipó-de-são-joão", "cipó-caititu", "cipó-tingá" and "dedode-moça" (Pool, 2008) and is widely distributed in the cerrado, which is noted as being a typical ecosystem of central and southeastern Brazil (Blatt et al, 1998). In folk medicine, the aerial parts of P. venusta are mainly used as an infusion or decoction.…”

Section: Introductionmentioning

confidence: 99%

Anti-inflammatory and antinociceptive effects of the hydroethanolic extract of the flowers of Pyrostegia venusta in mice

Veloso¹,

Cabral²,

Bitencourt³

et al. 2012

Rev. bras. farmacogn.

View full text Add to dashboard Cite

Pyrostegia venusta (Ker Gawl.) Miers, Bignoniaceae, is native to the Brazilian Cerrado and popularly known as "cipó-de-são-joão". In Brazilian folk medicine, the flowers of P. venusta are used as a general tonic and a treatment for diarrhea, vitiligo, cough, and common infections and inflammatory diseases of the respiratory system. Nevertheless, there are still no studies on its possible anti-inflammatory and antinociceptive effects. The P. venusta hydroethanolic extract (PvHE) was used to evaluate the anti-inflammatory and analgesic effects in carrageenan-induced paw edema, peritonitis induced by lipopolysaccharide, acetic acid-induced writhing, and formalin-induced paw-licking tests in Swiss male mice. PvHE at doses of 30-300 mg/kg p.o. demonstrated anti-inflammatory effect. PvHE reduced paw edema induced by carrageenan and inhibited leukocyte recruitment into the peritoneal cavity. The extracts showed antinociceptive activity in acetic acid-induced writhing and formalin tests. Our results showed that the PvHE demonstrated anti-inflammatory and antinociceptive action in mice. All the anti-inflammatory actions obtained are also suggested to due the presence of acacetin-7-O-β-glucopyranoside.

show abstract

“…The leaves of Tabebuia ochracea were dominated by a flavone that was tentatively identified as a scutellarein glucuronide (Table 4; Blatt et al 1998;Liu et al 2011;chromatogram not shown). This flavone was absent from the leaf extracts incubated at pH 10, which implied that the oxidizability of T. ochracea was partly due to this flavone.…”

mentioning

confidence: 97%

Phenolic Compounds and Their Fates In Tropical Lepidopteran Larvae: Modifications In Alkaline Conditions

et al. 2015

View full text Add to dashboard Cite

Lepidopteran larvae encounter a variety of phenolic compounds while consuming their host plants. Some phenolics may oxidize under alkaline conditions prevailing in the larval guts, and the oxidation products may cause oxidative stress to the larvae. In this study, we aimed to find new ways to predict how phenolic compounds may be modified in the guts of herbivorous larvae. To do so, we studied the ease of oxidation of phenolic compounds from 12 tropical tree species. The leaf extracts were incubated in vitro in alkaline conditions, and the loss of total phenolics during incubation was used to estimate the oxidizability of extracts. The phenolic profiles of the leaf extracts before and after incubation were compared, revealing that some phenolic compounds were depleted during incubation. The leaves of the 12 tree species were each fed to 12 species of lepidopteran larvae that naturally feed on these trees. The phenolic profiles of larval frass were compared to those of in vitro incubated leaf extracts. These comparisons showed that the phenolic profiles of alkali-treated samples and frass samples were similar in many cases. This suggested that certain phenolics, such as ellagitannins, proanthocyanidins, and galloylquinic acid derivatives were modified by the alkaline pH of the larval gut. In other cases, the chromatographic profiles of frass and in vitro incubated leaf extracts were not similar, and new modifications of phenolics were detected in the frass. We conclude that the actual fates of phenolics in vivo are often more complicated than can be predicted by a simple in vitro method.

show abstract

Flavonoids ofBignoniaceae from the “cerrado” and their possible taxonomic significance

Cited by 35 publications

References 10 publications

Jacaranda—An ethnopharmacological and phytochemical review

Jacaranda—An ethnopharmacological and phytochemical review

Anti-inflammatory and antinociceptive effects of the hydroethanolic extract of the flowers of Pyrostegia venusta in mice

Phenolic Compounds and Their Fates In Tropical Lepidopteran Larvae: Modifications In Alkaline Conditions

Contact Info

Product

Resources

About