Antibacterial and antioxidant activities of ethanol extract from Paullinia cupana Mart.

Basile, Adriana; Ferrara, Lydia; Pezzo, Marisa Del; Mele, Guido; Sorbo, Sergio; Bassi, P.; Montesano, Domenico

doi:10.1016/j.jep.2005.05.038

Cited by 145 publications

(122 citation statements)

References 29 publications

(32 reference statements)

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“…Phenolic compounds are regarded to be the most important antioxidative constituent of plants; hence correlations between the concentrations of plant phenolics and the total antioxidant capacities have been well reported (Gulcin et al, 2002;Oktay et al, 2003). The content of phenolic compounds in the extracts was higher than that reported to other previously examined sources of antioxidants (Hu et al, 2000;Mathew & Abraham, 2004;Basile et al, 2005). It is important to point out that the WFB presented the highest amount of proanthocyanidins and it was expected since we used a recommend solvent system to better extract this class of compound (Foo & Porter, 1980).…”

Section: Resultsmentioning

confidence: 81%

Protective action against chemical-induced genotoxicity and free radical scavenging activities of Stryphnodendron adstringens ("barbatimão") leaf extracts

Filho¹,

Ferreira²,

Gouvêa³

2011

Rev. bras. farmacogn.

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The present study describes for the first time the antigenotoxic and antioxidant properties of Stryphnodendron adstringens (Mart.) Coville, Fabaceae ("barbatimão") leaves. The aqueous (AEB), water fraction (WFB) and ethanolic (EEB) extracts of leaves were obtained and they presented high content of phenolic compounds, flavonoids and proanthocyanidins. WFB and EEB inhibited the genotoxicity induced by cyclophosphamide. WFB inhibited the DNA lesion formation and both WFB and EEB decreased significantly (p<0.05) micronucleus formation. All extracts also showed high DPPH radical scavenging activity and reducing power. In conclusion all extracts presented antioxidant activity and WFB and EEB protected cells from genotoxicity induced by cyclophosphamide in rat bone marrow cells. Thus, our results support the beneficial effects of the barbatimão extracts as an anticarcinogenic agent.

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Section: Resultsmentioning

confidence: 81%

Protective action against chemical-induced genotoxicity and free radical scavenging activities of Stryphnodendron adstringens ("barbatimão") leaf extracts

Filho¹,

Ferreira²,

Gouvêa³

2011

Rev. bras. farmacogn.

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“…This biological activity has been attributed to the oxidation-reduction properties of phenolic compounds, playing an important role in the absorption or neutralization of free radicals (Basile et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Antioxidant Properties of Pecan Nut [<i>Carya illinoinensis</i> (Wangenh.) C. Koch] Shell Infusion

Prado¹,

Aragão²,

Fett³

et al. 2009

Grasas y Aceites

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RESUMEN Propiedades antioxidantes de la infusión de la cás-cara de nuez Pecana [Carya illinoinensis (Wangenh.) C. Koch]La composición nutricional de la cáscara de nuez Pecana [Carya illinoinensis (Wangenh.) C. Koch] y los contenidos de fenoles totales y de taninos condensados de la infusión de la cáscara de nuez Pecana se determinaron en este trabajo. La actividad antioxidante de la infusión se evaluó a través de los sistemas ABTS, DPPH y β-caroteno/ácido linoleico. La cás-cara presentó un contenido elevado de fibras (48% Ϯ 0,06), el contenido de fenoles totales varió de 116 a 167 mg GAE/g y el de taninos condensados se encontró entre 35 y 48 mg CE/g. La actividad antioxidante varió entre 1112 y 1763 µmol TEAC/g en el sistema ABTS. Por el método DPPH, la actividad antioxidante fue de 305 a 488 mg TEAC/g (30 minutos de reacción) y de 482 a 683 mg TEAC/g (24 h de reacción). El porcentaje de inhibición de la oxidación que se obtuvo en el sistema β-caroteno/ácido linoleico varió de 70 a 96%. Los resultados indicaron un elevado contenido de fenoles y una elevada actividad antioxidante para la infusión de la cáscara de nuez Pecana.PALABRAS CLAVE: Actividad antioxidante -Cáscara de nuez Pecana -Compuestos fenólicos -Composición nutricional -Infusión -oxidación. SUMMARY Antioxidant Properties of Pecan Nut [Carya illinoinensis (Wangenh.) C. Koch] Shell InfusionThe nutritional composition of Pecan nut [Carya illinoinensis (Wangenh.) C. Koch] shells and the total phenolic and condensed tannin contents of Pecan nut shell infusion were determined and the antioxidant activity of the infusion was evaluated through ABTS, DPPH and β-carotene/linoleic acid systems. The shell presented high fiber content (48% Ϯ 0.06), the total phenolic content ranged from 116 to 167 mg GAE/g and the condensed tannin content was between 35 and 48 mg CE/g. The antioxidant activity varied from 1112 and 1763 µmol TEAC/g in the ABTS system. In the DPPH method, the antioxidant activity was from 305 to 488 mg TEAC/g (30 minutes reaction) and from 482 to 683 mg TEAC/g (24 h reaction). The oxidation inhibition percentage obtained in the β-carotene/linoleic acid system varied from 70 to 96%. The results indicated the high phenolic content and antioxidant activity of Pecan nut shell infusion.

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“…[22][23][24] No caso da espécie M. vacciniifolia esta abordagem pode ser aplicada, pois a fração mais ativa em relação à atividade antioxidante (Fr. AcOEt) foi também a que apresentou maior teor de compostos fenólicos.…”

Section: Resultsunclassified

Estudos químicos e biológicos de Microgramma vacciniifolia (Langsd. & Fisch.) Copel (Polypodiaceae)

Peres¹,

Simionatto²,

Hess³

et al. 2009

Quím. Nova

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Recebido em 14/4/08; aceito em 13/11/08; publicado na web em 25/3/09 CHEMICAL AND BIOLOGICAL STUDIES OF Microgramma vacciniifolia (LANGSD. & FISCH.) COpEL (pOLypODIACEAE). Chemical studies with aerial parts of Microgramma vacciniifolia (Langsd. & Fisch.) Copel. afforded β-sitosterol, hopan-22-ol, 6-metoxiapinenin-7-O-β-D-allopyranoside and a mixture containing ethyl esters of carboxilic acids. The structures of the coumpounds were elucidated by spectroscopy and GC-MS analysis. The total phenolics contents of the crude extract and fractions were determined by Folin-Ciocalteau method. The antioxidant activity was evaluated using the 2,2-diphenyl-1-picrylhydrazyl (DppH). The AcOEt fraction showed better activity in DppH assay (9.9 ± 0.03 µg/mL), and presented also higher contents of the total phenolic (93.60 ± 1.11 µg/mg). Antimicrobial and allelopathic effects of the crude etanolic extract and fractions also were evaluated. In addition, the combination of biological activities was discussed.

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Antibacterial and antioxidant activities of ethanol extract from Paullinia cupana Mart.

Cited by 145 publications

References 29 publications

Protective action against chemical-induced genotoxicity and free radical scavenging activities of Stryphnodendron adstringens ("barbatimão") leaf extracts

Protective action against chemical-induced genotoxicity and free radical scavenging activities of Stryphnodendron adstringens ("barbatimão") leaf extracts

Antioxidant Properties of Pecan Nut [<i>Carya illinoinensis</i> (Wangenh.) C. Koch] Shell Infusion

Estudos químicos e biológicos de Microgramma vacciniifolia (Langsd. & Fisch.) Copel (Polypodiaceae)

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