Composição fitoquímica e potencial antioxidante de hortaliças não convencionais

Viana, Mayara Ms; Carlos, Lanamar de Almeida; Silva, Ernani C; Pereira, Silvia M.F.; Oliveira, Daniela Barros de; Assis, Maria Lv

doi:10.1590/s0102-053620150000400016

Cited by 39 publications

(41 citation statements)

References 15 publications

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“…The presence of anthocyanins and vitamin C was not detected in sorrel leaves assessed in this present study. Viana et al (2015) also reported the absence of vitamin C in sorrel type I cropped in the Non-Conventional Vegetables Center (EPAMIG-Prudente de Morais-MG). However, they reported the presence of the same in leaves of sorrel type II at the concentration of 72.45 mg of vitamin C/g of leaf in dry basis.…”

Section: Resultsmentioning

confidence: 97%

“…In a previous study, despite carotenoid content being expressive, it was detected the presence of 781.00 µg of β-carotene. 100g -1 fresh matter (VIANA et al, 2015).…”

Section: Resultsmentioning

confidence: 99%

“…There are several vegetable species that are not used or are underused with high nutritional qualities that often are greater than those of plants usually cropped (LADIO, 2005). Non-conventional vegetables such as purslane (Portulaca oleracea), Malabar speech (Basella rubra), green amaranth (Amaranthus viridis), lamb's ear (Stachis lanata), and sorrel (Rumex acetosa) present considerable contents of minerals and natural antioxidants such as carotenoids and phenolic compounds in their constitution, and its regular consumption is associated with benefits for human health (VIANA et. al, 2015).…”

Section: Introductionmentioning

confidence: 99%

“…Sorrel (Rumex acetosa L.), having characteristic rusticity and flavor, has been found pleasant by consumers, presents good marketing potential and can contribute to enrich human diet, 776 Profile of phytochemistry TORRES, M. P. et al because it presents relevant amounts of macro and micronutrients in its constitution (SILVA et al, 2013), besides natural antioxidant compounds such as phenolic and carotenoid compounds (VIANA et al, 2015). Sorrel belongs to the Poligonaceae family and is herbaceous, perennial, about 20 cm (8 in) high, forming clumps with several propagules.…”

Section: Introductionmentioning

confidence: 99%

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Profile of phytochemistry and antioxidant activity of sorrel in function of organic fertilization and density of plantio

Torres¹,

Carlos²,

Pedrosa³

et al. 2019

Biosci. J.

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The revival of non-conventional edible plants enables important gains in nutritional, social, cultural, economic, and environmental points of view. Among them, sorrel-Rumex acetosa L.-has been deemed pleasant by consumers due to its acid taste. As we do not have a lot of phytotechnical and nutritional information about this plant, the objective was to assess the influence of different spacing sets and cattle manure dosages on their physical-chemical characteristics and bioactive compounds content with antioxidant action. Randomized blocks with four repetitions was chosen as experimental design, using a scheme of subdivided plots, with five dosages of weather-beaten cattle manure in the plots and two sets of spacing in the subplots. Data was submitted to a variance analysis with two factors (two-way ANOVA). It was not verified any significant effect (P>0.05) in the interaction Dosage x Spacing. Fertilization dosages and spacing sets did not have any effect on color and total soluble solids average contents, humidity, titratable acidity, and phenolic compounds. Increasing dosages of organic fertilizer, up to 75 kg ha-1 , reduced the plant's pH; above that amount, pH rose. Presence of anthocyanins and vitamin C was not detected. The total carotenoids average content was not influenced by the manure factor, and the plant presented greater total carotenoids content in the smallest spacing. Antioxidant activity [1.0 mg mL-1 ], although inferior to the standards that were used (BHT, vitamin C and quercetin), was quite representative. A conclusion was reached that fertilizing with weather-beaten cattle manure had an effect only on pH, and cropping spacing had an influence only on carotenoids content. Other phytochemicals and physical-chemical characteristics were not influenced in sorrel plants with different levels of fertilization and sets of spacing.

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Section: Resultsmentioning

confidence: 97%

“…In a previous study, despite carotenoid content being expressive, it was detected the presence of 781.00 µg of β-carotene. 100g -1 fresh matter (VIANA et al, 2015).…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Profile of phytochemistry and antioxidant activity of sorrel in function of organic fertilization and density of plantio

Torres¹,

Carlos²,

Pedrosa³

et al. 2019

Biosci. J.

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show abstract

“…2,3 O consumo de antioxidantes naturais está associado à diminuição dos riscos de doenças crônicas não transmissíveis, somada à efetiva ação contra agentes oxidantes no organismo, dessa forma, é importante a descoberta de novas fontes naturais desses compostos. 4 As principais moléculas relacionadas a esta atividade são os compostos fenólicos. Tais substâncias atuam na eliminação de radicais livres agindo por diferentes mecanismos de ação, podendo atuar através da doação de elétrons, na quelação de metais de transição, impedindo a peroxidação lipídica, pela inibição de enzimas produtoras de radicais e desempenhar concomitantemente mais de uma dessas funções.…”

Section: Introductionunclassified

Antioxidant potential of the phenolic fraction of Stryphnodendron rotundifolium Mart. from encapsulation in niosomes

Camilo¹,

Nonato²,

Damasceno³

et al. 2020

Rev. Virtual Quim.

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The encapsulation of isolated compounds and fractions in niosomes favors the increase of the biological response even in low concentrations, considering that lipidic vesicles can be the alternative to the use of substances that have biological activity, but present high toxicity. Based on this, this work sought the development of niosomes containing a fraction rich in phenolic compounds obtained from the barks of Stryphnodendron rotundifolium Mart., In order to evaluate its antioxidant activity by different mechanisms of action and to compare them to the activity of the fraction alone. The niosomes were obtained by the lipidic film hydration method and the following physicochemical characteristics were evaluated: size, PDI, zeta potential and encapsulation efficiency. These analyzes were performed for a period of three months in order to evaluate the stability of the vesicle. The antioxidant tests performed were ABTS •+ , Fe 2+ Chelating Agent, Deoxyribose. The niosomes obtained mean size of 84.07nm, PDI of 0.2, zeta potential of-50mV and encapsulation efficiency of 60 %. The antioxidant results showed efficiency of the sample for all evaluated antioxidant mechanisms, indicating that the phenolic fraction is more efficient when encapsulated in niosomes.

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