Total oxidant scavenging capacities of Euterpe oleracea Mart. (Açaí) fruits

  title={Total oxidant scavenging capacities of Euterpe oleracea Mart. (Aça{\'i}) fruits},
  author={Ramona Lichtenth{\"a}ler and Roberta Belandrino Rodrigues and Jos{\'e} Guilherme S. Maia and Menelaos Papagiannopoulos and Heinz Fabricius and Friedhelm Marx},
  journal={International Journal of Food Sciences and Nutrition},
  pages={53 - 64}
The antioxidant capacities of 11 commercial and non-commercial samples of Euterpe oleracea Mart. (açaí) fruit pulp were studied with the total oxidant scavenging capacity assay in a modified and automated version against three reactive oxygen species. The antioxidant capacities of all purple açaí samples were found to be excellent against peroxyl radicals, good against peroxynitrite and poor against hydroxyl radicals compared with common European fruit and vegetable juices recently analysed. In… 
Total oxidant scavenging capacity of Euterpe oleracea Mart. (açaí) seeds and identification of their polyphenolic compounds.
Determination of TOSC values of HPLC seed extract fractions indicates that the procyanidins contribute substantially to the overall antioxidant capacity, however, other compounds that have not yet been identified are responsible for a large part of the observed antioxidant capacity.
Antioxidant capacity and other bioactivities of the freeze-dried Amazonian palm berry, Euterpe oleraceae mart. (acai).
An assay measuring inhibition of reactive oxygen species (ROS) formation in freshly purified human neutrophils showed that antioxidants in acai are able to enter human cells in a fully functional form and to perform an oxygen quenching function at very low doses.
Chemical composition and antioxidant capacity of açaí (Euterpe oleracea) genotypes and commercial pulps.
Among the genotypes studied, L4P16 stood out for its higher contents of fibre and bioactive compounds and higher antioxidant capacity, indicating that this genotype has great potential for use in plant breeding programs that should be further explored.
Antioxidant capacity and phenolics of Pouteria macrophylla, an under-utilized fruit from Brazilian Amazon
The potential of fruits occurring in the Amazon with regard to their antioxidant capacity is being addressed increasingly during the last years. In this paper, the antioxidant capacity of fruits from
Antioxidant Capacity and Chemical Characterization of Açaí (Euterpe oleracea Mart.) Fruit Fractions
Acai (Euterpe oleracea) has a high nutritional value because of its antioxidant compounds, which have the appeal of health benefits. This fruit is native of the floodplain of the Brazilian state of
Impact of solar dehydration on composition and antioxidant properties of acai (Euterpe oleracea Mart.).
The blanching of the fruit and the solar dehydrating of the acai pulp did not modify the composition, but they improved its microbiological quality and reduced phenolic compounds and antioxidant capacity.
Changes in phenolic composition, ascorbic acid and antioxidant capacity in cashew apple (Anacardium occidentale L.) during ripening
Introduction . Cashew apple is a rich source of sugars, vitamin C and polyphenols. In spite of its nutritional value, this pseudo-fruit has been left unexploited to a large extent in the crop-growing


Total oxidant scavenging capacities of common European fruit and vegetable juices.
The total oxidant scavenging capacity (TOSC) assay in a modified and automated version was applied for a comparative and detailed survey of the antioxidant capacities of 14 common European fruit and vegetable juices and lingonberry juice deserves special attention.
Polyphenolic Constituents of Fruit Pulp of Euterpe oleracea Mart. (Açai palm)
The polyphenolic composition of Euterpe oleracea Mart. (Açai palm) fruit was investigated by HPLC-DAD-UV-Vis and HPLC-MS. Açai palm is widely diffused and cultivated in Amazon regions and especially
Determination of antioxidative capacities using an enhanced total oxidant scavenging capacity (TOSC) assay
Abstract. The antioxidant capacities of nine standard compounds (ascorbic acid, benzoic acid, (+)-catechin, cyanidin-3-glucoside, cyanidin-3-rutinoside, (–)-epicatechin, protocatechuic acid, Trolox
Oxygen radical absorbing capacity of phenolics in blueberries, cranberries, chokeberries, and lingonberries.
Phenolics such as quercetin and cyanidin had highly effective radical scavenging structures in blueberries, cranberry, chokeberry, and lingonberries, and Phenolic acids such as caffeic acid showed high antioxidant activity, probably due to its dihydroxylation in the 3-4 positions as hydrogen donors.
Total Antioxidant Capacity of Fruits
The total antioxidant activity of 12 fruits and 5 commercial fruit juices was measured in this study using automated oxygen radical absorbance capacity (ORAC) assay. On the basis of the wet weight of
Identification and quantification of polyphenols in carob fruits (Ceratonia siliqua L.) and derived products by HPLC-UV-ESI/MSn.
Carob fiber, a carob pod preparation rich in insoluble dietary fiber, shows the highest concentrations in flavonol-glycosides and hydrolyzable tannins, whereas roasted carob products contain the highest levels of gallic acid.
The effect of light on the stability and stabilization of the anthocyanins isolated from freeze-dried aqueous extracts of fruits of Euterpe oleracea were studied, using crude and purified extracts at
Berry phenolics and their antioxidant activity.
The extraction method affected remarkably both the phenolic composition and the antioxidant activity, but with statistical analysis the observed activity could not be well explained with the contents of individual phenolic subgroups.