Phenolic composition and antioxidant activity of the aqueous extract of bark from residues from mate tree (Ilex paraguariensis St. Hil.) bark harvesting concentrated by nanofiltration

Prudêncio, Ana Paula Aguiar; Prudêncio, Elane Schwinden; Amboni, Renata Dias de Mello Castanho; Murakami, Aureanna Nairne Negrão; Maraschin, Marcelo; Petrus, José Carlos Cunha; Ogliari, Paulo José; Leite, R. S.

doi:10.1016/j.fbp.2011.12.003

Cited by 51 publications

(14 citation statements)

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“…In the present study, the hydrophilic antioxidant extract was able to scavenge the DPPH radical, and the scavenging potential increased (P < 0.05) as the volume reduction factor was increased in the concentrate samples, which is in accordance with the higher concentration of bioactive compounds present in these samples. The same behaviour was reported by Prudêncio et al (2012) in the evaluation of antioxidant activity of mate bark at different volume reduction factors using the DPPH method. As expected, the permeate samples showed irrelevant antioxidant activity, confirming the very high rejection values of polar bioactive compounds.…”

Section: Hydrophilic and Lipophilic Antioxidant Activities (Dpphȧ Nd supporting

confidence: 83%

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Potential of nanofiltration for the concentration of bioactive compounds from watermelon juice

Arriola

Santos

Prudêncio

et al. 2014

Int J of Food Sci Tech

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Summary The aim of this study was to evaluate the potential of nanofiltration for the concentration of bioactive compounds of watermelon juice. Lipophilic and hydrophilic antioxidant activities were determined through two assays, ferric reducing antioxidant power and DPPH. The content of lycopene, flavonoids and total phenolic in the concentrate samples increased with the increase in the volume reduction factor. Volume reduction factor of three showed the best performance of concentration, generating the highest values for lycopene, flavonoid and total phenolic contents. Average permeation flux was 2.3 L h−1 m−2, with continuous extraction of the concentrate at a volumetric reduction ratio of three. Lycopene showed the highest rejection coefficient (0.99), followed by flavonoids (0.96) and total phenolic content (0.65). The hydrophilic antioxidant activity values in both assays were higher than the lipophilic antioxidant activity values. A highly significant correlation was noted between the contents of flavonoids, phenolic compounds, ascorbic acid, and lycopene and their antioxidant potential in both lipophilic and hydrophilic fractions.

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Section: Hydrophilic and Lipophilic Antioxidant Activities (Dpphȧ Nd supporting

confidence: 83%

“…The same behaviour was reported by Prudêncio et al . () in the evaluation of antioxidant activity of mate bark at different volume reduction factors using the DPPH method. As expected, the permeate samples showed irrelevant antioxidant activity, confirming the very high rejection values of polar bioactive compounds.…”

Section: Resultsmentioning

confidence: 99%

Potential of nanofiltration for the concentration of bioactive compounds from watermelon juice

Arriola

Santos

Prudêncio

et al. 2014

Int J of Food Sci Tech

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“…2017 DOI: 10.1590/S0100-204X2017001200011 with higher TPC values presented higher TAA for the skin ('Nonante' and 'Mattos') and the flesh ('Nonante' and accession 2316) tissues, and the genotypes with lower TPC values presented lower TAA for the skin ('Helena' and accession 2316) and the flesh (' Alcântara', 'Mattos', and 'Helena') in both extracts. Phenolic compounds, which are widely distributed in plants, have been receiving considerable attention due to their vast array of biological actions, such as antioxidant activity (Prudêncio et al, 2012;Pereira et al, 2013). Several studies have shown the positive correlation between the TPC and TAA of fruits (Rufino et al, 2010;Oliveira et al, 2011;Rosso, 2013).…”

Section: Resultsmentioning

confidence: 99%

Phenolic content and antioxidant activity of fruit of Brazilian genotypes of feijoa

Amarante

Souza

Benincá

et al. 2017

Pesq. agropec. bras.

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-The objective of this work was to quantify the total phenolic content (TPC) and total antioxidant activity (TAA) of fruit from Brazilian genotypes of feijoa (Acca sellowiana). Skin and flesh tissues of the fruit were evaluated for the Alcântara, Helena, Mattos, and Nonante cultivars, and for the 2316 accession. TPC and TAA were both assessed in aqueous and hydroalcoholic extracts, and TAA was assayed by the DPPH (2,2-diphenyl-1-picrylhydrazyl) and ABTS [2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid)] methods. The TPC values, for aqueous extracts of the skin and flesh tissues, were 114.9 and 88.3 mg gallic acid equivalent (GAE) per 100 g fresh weight (FW), respectively. The corresponding values for TAA determined by the DPPH method, the skin and flesh tissues, given as EC 50 (substrate concentration which leads to 50% reduction of the DPPH), were 10.7 and 39.7 mg FW per g DPPH, respectively; and, by the ABTS method, the TAA values were 12.01 and 8.33 µmol L -1 Trolox per g FW, respectively. The greatest values for TPC and TAA were obtained for 'Mattos' and 'Nonante', in the skin, and for 'Nonante' and accession 2316, in the flesh. Feijoa fruit has important functional value, particularly in the skin, characterized by high TPC and TAA.Index terms: Acca sellowiana, Feijoa sellowiana, DPPH and ABTS methods, flesh and skin characterization, functional food. Compostos fenólicos e atividade antioxidante em frutos de genótipos brasileiros de goiabeira-serranaResumo -O objetivo deste trabalho foi avaliar compostos fenólicos totais (CFT) e atividade antioxidante total (AAT) em frutos de genótipos brasileiros de goiabeira-serrana (Acca sellowiana). As avaliações foram realizadas na casca e na polpa dos frutos, nas cultivares Alcântara, Helena, Mattos e Nonante, e no acesso 2316. CFT e AAT foram determinados em soluções extratoras aquosa e hidroalcoólica, e, para AAT, foram utilizados os métodos DPPH (2,2-difenil-1-picrilhidrazilo) e ABTS [2,2'-azino-bis (3-etilbenzotiazolin) 6-ácido sulfônico]. Os valores de CFT em extrato aquoso na casca e na polpa foram de 114,9 e de 88,3 mg em equivalente de ácido gálico (EAG) por 100 g de matéria fresca (MF), respectivamente. Para AAT, em extrato aquoso, na casca e na polpa, no método DPPH, os valores de EC 50 (concentração de substrato para reduzir em 50% a concentração inicial de DPPH) foram de 10,7 e 39,7 mg MF por g de DPPH, respectivamente; e, no método ABTS, foram de 12.01 e 8.33 µmol L -1 de Trolox por g de MF, respectivamente. Os maiores valores de CFT e AAT foram observados em 'Mattos' e 'Nonante', na casca, e em 'Nonante' e no acesso 2316 na polpa. Os frutos de goiabeira-serrana apresentam importante valor funcional, especialmente no tecido da casca, caracterizado pelos elevados conteúdos de CFT e alta AAT.Termos para indexação: Acca sellowiana, Feijoa sellowiana, métodos DPPH e ABTS, caracterização de polpa e casca, alimento funcional.

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“…Several strategies have been developed to obtain yerba-mate extracts with high levels of bioactive compounds, including freeze-concentration technology (Boaventura et al, 2012) and nanofiltration (Murakami et al, 2011;Prudêncio et al, 2012). The processing steps that affect the levels of phenolic compounds and methylxanthine have been assessed (Isolabella et al, 2010;Valerga;Lanari, 2012;Zaions et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Phytochemical profile of morphologically selected yerba-mate progenies

et al. 2016

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Yerba-mate (Ilex paraguariensis St. Hil) is a native South American species. Plant progenies are populations that differ in terms of their productivity, morphology and phytochemical profile. This study aimed to determine the concentration of primary and secondary metabolites, such as antioxidants, in leaves, of yerba-mate progenies selected based on morphological characteristics. We evaluated the centesimal composition of secondary metabolites in the leaves of five yerba-mate plants. Methylxanthines and phenolic compounds were determined by UPLC-PDA, and antioxidant activity by measuring DPPH scavenging. Significant differences were found in centesimal composition and the contents of caffeine, theobromine, rutin and chlorogenic acid, as well as antioxidant activities, in selected progenies. The IC 50 values were correlated with the chlorogenic acid levels (r 2 = 0.5242) and soluble content (r 2 = 0.7686). The morphological characteristics observed in yerba-mate leaves can be used as a tool for plant selection, to obtain matrices with different phytochemical profiles as a genetic material source.Index terms: Ilex paraguariensis St. Hil.; plant selection; secondary metabolites. RESUMOA erva-mate (Ilex paraguariensis St. Hil) é uma espécie nativa da América do Sul. Progênies vegetais são grupos de plantas que apresentam diferenças em relação a sua produtividade, morfologia e possivelmente perfil fitoquímico. Neste trabalho, objetivou-se determinar os teores de metabólitos primários e secundários, assim como atividade antioxidante em folhas de progênies de erva-mate, morfologicamente caracterizadas. Foi avaliada a composição centesimal e níveis de metabólitos secundários em cinco plantas. Metilxantinas e compostos fenólicos foram determinados por UPLC-PDA, e a atividade antioxidante, por meio da medição da capacidade de sequestro do radical DPPH. Foram encontradas diferenças significativas na composição centesimal, e no conteúdo de cafeína, teobromina, rutina e ácido clorogênico, assim como atividade antioxidante nas progênies selecionas. Os valores de IC 50 estiveram correlacionados com os níveis de ácido clorogênico (r 2 = 0,5242) e conteúdo de solúveis (r 2 = 0,7686). Os caracteres morfológicos observados nas folhas de erva-mate podem ser utilizados como uma ferramenta visando a obter matrizes com perfil fitoquímico diferenciado como fonte de material genético.Termos para indexação: Ilex paraguariensis St. Hil.; seleção de plantas; metabólitos secundários.

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Phenolic composition and antioxidant activity of the aqueous extract of bark from residues from mate tree (Ilex paraguariensis St. Hil.) bark harvesting concentrated by nanofiltration

Cited by 51 publications

References 47 publications

Potential of nanofiltration for the concentration of bioactive compounds from watermelon juice

Potential of nanofiltration for the concentration of bioactive compounds from watermelon juice

Phenolic content and antioxidant activity of fruit of Brazilian genotypes of feijoa

Phytochemical profile of morphologically selected yerba-mate progenies

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