Hydroethanolic extracts from different genotypes of açaí (Euterpe oleracea) presented antioxidant potential and protected human neuron-like cells (SH-SY5Y)

Torma, Priscila do Carmo Marchioro Raupp; Brasil, Allana Von Sulzback; Carvalho, Ana Vânia; Jablonski, André; Rabelo, Thallita Kelly; Moreira, José Cláudio Fonseca; Gelain, Daniel Pens; Flôres, Simone Hickmann; Augusti, Paula Rossini; Rios, Alessandro de Oliveira

doi:10.1016/j.foodchem.2016.12.006

Cited by 46 publications

(32 citation statements)

References 38 publications

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“…Persimmon fruits showed antioxidant activity in the 2-DR degradation assays, in spin trapping EPR study and in the lipid peroxidation. The I 50 values obtained by aqueous persimmon extracts against 2-DR oxidation (ranging from 0.5 to 1.8 mg/mL) are similar to other fruits such as açaí ( Torma et al, 2017 ), date ( Vayalil, 2002 ) and carissa fruits ( Sahreen, Khan & Khan, 2010 ). In general, the antioxidant capacity of persimmon extracts seems to be lower in a more lipophilic environment.…”

Section: Resultssupporting

confidence: 60%

Antioxidant activity and mechanism of commercial Rama Forte persimmon fruits (Diospyros kaki)

Dalvi

Moreira

Alonso

et al. 2018

PeerJ

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This study aimed to characterize the antioxidant properties of Rama Forte persimmon, a tannin-rich fruit variety produced in Brazil. Extracts prepared with lyophilized pulps from fruits obtained in local markets were analyzed individually to evaluate the extent of antioxidant protection and investigate the antioxidant mechanism. Iron-mediated hydroxylation of 5,5-dimethyl-1-pirrolidine-N-oxide, determined by electron paramagnetic resonance (EPR), and oxidative degradation of 2-deoxyribose (2-DR) were inhibited by fruit extracts in a dose-dependent manner. There was a considerable individual variability in inhibition of 2-DR degradation by individual fruits. Higher protection of 2-DR degradation (by the extracts) was observed in Fe(III)-citrate/ascorbate in comparison with Fe(III)-EDTA/ascorbate system; however, antioxidant effectiveness of fruit extracts was not diminished by increasing EDTA concentration by 10-fold. Other competition experiments using the 2-DR assay (varying pre-incubation time and 2-DR concentration) indicated that protection comes mainly from free radical scavenging, rather that metal chelation antioxidant activity. Persimmon extracts prevented iron-mediated lipid peroxidation in rat liver homogenates, which correlated significantly with the inhibition of 2-DR oxidation. Finally, sugar content of individual fruits correlated inversely with inhibition of 2-DR degradation, which could indicate that maturation decreases soluble antioxidant concentration or efficiency. In conclusion, lipid peroxidation, 2-DR and EPR experiments indicated that extracts from commercial fruits showed mainly radical-scavenger activity and relevant antioxidant activity.

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Section: Resultssupporting

confidence: 60%

Antioxidant activity and mechanism of commercial Rama Forte persimmon fruits (Diospyros kaki)

Dalvi

Moreira

Alonso

et al. 2018

PeerJ

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“…Torma et al . () reported that the hydroethanolic extracts at 50 μg mL −1 from six açaí genotypes showed lower ABTS radical generation reducing activities than Trolox at 5 μg mL −1 . Li et al .…”

Section: Resultsmentioning

confidence: 97%

“…Palanisamy et al (2008) reported the IC 50 /ABTS Á+ of the ethanolic rind extracts of rambutan being 1.7 lg mL À1 . Torma et al (2017) reported that the hydroethanolic extracts at 50 lg mL À1 from six ac ßa ı genotypes showed lower ABTS radical generation reducing activities than Trolox at 5 lg mL À1 . Li et al (2016) studied the IC 50 / ABTS Á+ of fractions obtained by solvents extract and gel chromatographic fraction from C. axillaris peels, being 76.77-82.49 lg phenolics mL À1 .…”

Section: Antioxidant Activities Of Crude and Purified Rppmentioning

confidence: 99%

Purification and identification of rambutan (Nephelium lappaceum) peel phenolics with evaluation of antioxidant and antiglycation activities in vitro

Zhuang

Guo

et al. 2017

Int J of Food Sci Tech

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Summary The crude rambutan peel phenolic (RPP) extracts were purified by resin adsorption technology. NKA‐9 resin with the best adsorption capacity and desorption ratio was chosen to dynamically purify crude RPP. Adsorption capacity and desorption ratio of NKA‐9 resin were 91.85 mg gallic acid equivalent (GAE) g−1 and 90.45%, respectively. Purification processes enriched total phenolic content, and the contents in crude and purified RPP were 579.72 and 877.11 mg GAE g−1 extract powder, respectively. Phytochemical compounds of RPP were qualitatively and quantitatively indentified by mass spectrometry. Purification of the resin as expected elevated the concentrations of major phenolic compounds, especially geraniin and ellagic acid. Antioxidant and antiglycation activities of crude and purified fractions were evaluated in vitro. Crude and purified RPP had high inhibitory effects on oxidation and glycation, and purified RPP showed stronger bioactivity than crude RPP (P < 0.05), which might be due to their differences in phenolic profiles.

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“…Also, hydromethanolic Theobroma grandiflorum (Wild. In vitro studies with hydroethanolic Euterpe oleracea Mart extract at 5 and 50 g/mL protected SH-SY5Y and PC12 cells culture when verifying the neuroprotective action after exposure to rotenone, H 2 O 2 and -amyloid aggregation [19,77,78]. Also, aqueous Paullinia cupana Kunth extracts at 1 mg/mL promoted SH-SY5Y cells culture protection in front of protein glycation and aggregation -amyloid [37].…”

Section: Antioxidant Hypoglycemic and Neuroprotective Effectmentioning

confidence: 99%

Antioxidant, Hypoglycemic and Neuroprotective Activities of Extracts from Fruits Native to the Amazon Region: A Review

Yamaguchi

Souza

2020

BJI

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The Amazon forest has the largest biome on the planet, and it is estimated that only 16 to 20% of the identified animal, and plant biodiversity. Considering plant diversity, we will highlight the biological properties of the fruits extracts of Arecaceae, Caryocaraceae, Malvaceae, Myrtaceae, Sapindaceae, and Solanaceae’s families due to their significant biological actions. This review presents the antioxidant, glycemic control, and neuroprotective activities from ten fruit extracts distributed in six botanical families in the Amazon region. We obtained 801 publications (described from 2010 to 2020), of which 64 articles were selected by the benchmark previously chosen. The antioxidant effect was the dominant effect observed in the studies used for this review, followed by glycemic control and protective actions in neurons. This review provides a synopsis of the recent literature exploring the extracts from native fruits to the Amazon region that could efficiently prevent pathologies associated with oxidative stress, and cellular maintenance mechanisms.

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Hydroethanolic extracts from different genotypes of açaí (Euterpe oleracea) presented antioxidant potential and protected human neuron-like cells (SH-SY5Y)

Cited by 46 publications

References 38 publications

Antioxidant activity and mechanism of commercial Rama Forte persimmon fruits (Diospyros kaki)

Antioxidant activity and mechanism of commercial Rama Forte persimmon fruits (Diospyros kaki)

Purification and identification of rambutan (Nephelium lappaceum) peel phenolics with evaluation of antioxidant and antiglycation activities in vitro

Antioxidant, Hypoglycemic and Neuroprotective Activities of Extracts from Fruits Native to the Amazon Region: A Review

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