Phenolic compounds and antioxidant activity of hydroalcoholic extracts of wild and cultivated murtilla (Ugni molinae Turcz.)

Augusto, Thalita Riquelme; Scheuermann, Erick; Alencar, Severino Matias de; D’Arce, Marisa Aparecida Bismara Regitano; Camargo, Adriano Costa de; Vieira, Thaís Maria Ferreira de Souza

doi:10.1590/1678-457x.6393

Cited by 65 publications

(46 citation statements)

References 38 publications

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“…Acetone is capable to provide high antioxidant activity due to its hydrogen-bonding ability, which is crucial for the extraction of antioxidant phenolic compounds (Rodríguez-Rojo et al, 2012). The efficiency of methanol was related to its intermediate polarity, which allows it to solvate low molecular weight organics compounds possessing protonatable functional groups such as CDDH and DH (Augusto et al, 2014;Nguyen et al, 2015). These functional groups were strongly responsible for a good antioxidant activity.…”

Section: Effect Of Extracting Solvent On the Antioxidant Activitiesmentioning

confidence: 99%

Solvent extraction effects on phytochemical constituents profiles, antioxidant and antimicrobial activities and functional group analysis of Ecballium elaterium seeds and peels fruits

et al. 2017

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Ecballium elaterium is a perennial herb with multiple medicinal properties. It was widely used in folk medicine as cathartic, anti-inflammatory and analgesic agents. The present study was devoted to investigate the effect of diethyl ether, acetone, and methanol solvent on the extraction, phytochemicals profiles, antioxidant and antimicrobial activities of Ecballium elaterium seeds and peels fruits. The total phenolic, flavonoid, flavonol, condensed tannins and carotenoids contents were estimated. Maximum phenolic (107 ± 4 mg GAE/g) and flavonoid (18 ± 0 mg QE/g) contents were also found in the methanol peels fruits extract. Results showed that methanol peels fruits extract have the highest antioxidant activity with IC 50 values of 1.2 ± 0.1 and 1 ± 0 mg/mL for DPPH and ABTS, respectively, and EC 50 value of 1040 ± 5 mg/mL for reducing power assays. Acetone and diethyl ether peels fruits extracts showed the best antibacterial agents especially against Micrococcus luteus, however no antifungal activity was observed. Spectral data of FT-IR analysis of Ecballium elaterium seeds and peels fruits extracts revealed the presence of functional groups such as ─DH, C─H, C─D and C=D. Due to their high antioxidant and antibacterial activities, E. elaterium seeds and peels fruits extracts have promising potential as future natural antioxidant and antibacterial agents in food industry.Keywords: Ecballium elaterium; solvent effects; phytochemical contents; antioxidant and antimicrobial properties; FT-IR analysis.Practical Application: Ecballium elaterium seeds and peels fruits can be potentially used as natural antioxidant and antibacterial inhibitor.

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Section: Effect Of Extracting Solvent On the Antioxidant Activitiesmentioning

confidence: 99%

Solvent extraction effects on phytochemical constituents profiles, antioxidant and antimicrobial activities and functional group analysis of Ecballium elaterium seeds and peels fruits

et al. 2017

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“…Phenolic compounds (PCs) have been extensively studied due to their antioxidant properties and strong influence on the food quality (Augusto et al, 2014). These compounds include a wide variety of molecules, like phenolic acids, the simplest ones, consisting in a C6-C1 or C6-C3 structure, the flavonoids, which are the most abundant and presenting a C6-C3-C6 structure, and the stilbenes with their C6-C2-C6 structure.…”

Section: Introductionmentioning

confidence: 99%

Adsorption capacity of phenolic compounds onto cellulose and xylan

Costa¹,

Rogez²,

Pena³

2015

Food Sci. Technol (Campinas)

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The interaction between three phenolic compounds (catechin, caffeic acid and ferulic acid) onto two dietary fibres (cellulose and xylan) has been evaluated to inquire possible interferences on the biodisponibility of phenolic compounds. The adsorption kinetics were performed using solutions containing 100 mg/L of phenolic compounds during a contact time ranging between 10 and 120 minutes at pH 2.0, 4.5, and 7.0. After the kinetics, isotherms were obtained using phenolic compounds concentration ranging between 10 and 80 mg/L during 60 minutes, at pH 2.0 and 7.0 and temperature of 36 °C. Results indicate that adsorbed quantities mainly changed in function of pH, however the maximum adsorption was only of 0.978 mg of caffeic acid/g of xylan at pH 2 and after 60 min. Redlich-Peterson model were able to predict the adsorption isotherms of all phenolic compounds onto cellulose, except for caffeic acid at pH 7.0. The low adsorption capacities observed suggest that both dietary fibres are unable to compromise the biodisponibility of phenolic compounds, especially in the small intestine, where they are partially absorbed.

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“…In the present study, ethanol and ethanol-water fractions were found to be the most effective in producing scavenging activity against DPPH radicals, and for garden-violet cultivar the highest values were obtained. Several studies showed also that cultivated plants possessed a higher free-radical scavenging activity against DPPH radicals than wild growing plant [17][18][19].…”

Section: Resultsmentioning

confidence: 99%

Flavonoid Content and Antioxidant Properties in Different Extracts of Calluna vulgaris (L.) Flowers

Dróżdż¹,

Sentkowska²,

Pyrzyńska³

2017

JAST-A

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This study evaluated the effect of four different solvent, i.e., water, ethanol, water-ethanol mixture and ethyl acetate, on the antioxidant activities of wild and cultivated heather (Calluna vulgaris (L.) Hull) plant. The highest values for total flavonoid content were obtained for samples extracted using ethanol-water mixture and ethyl acetate. Cupric reducing antioxidant capacity (CUPRAC) method, scavenging ability on 1,1-diphenyl-2-pirylhydrazyl radicals (DPPH) radicals and chelating activity on Fe 2+ ions have been used for evaluation of antioxidant activity of the extracts. Ethanolic fraction exhibited the lowest reducing capacity, despite a heather sample used. The extracts of cultivated heather exhibited significant scavenging effect on DPPH radicals, and ethanol and ethanol-water fractions were found to be the most effective. The metal-chelating effect of the extracts increased in the order: ethanol < ethyl acetate < ethanol-water < water. The results may be helpful for better utilization of heather flowers extracts as potential pharmaceutical and nutraceutical ingredient.

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Phenolic compounds and antioxidant activity of hydroalcoholic extracts of wild and cultivated murtilla (Ugni molinae Turcz.)

Cited by 65 publications

References 38 publications

Solvent extraction effects on phytochemical constituents profiles, antioxidant and antimicrobial activities and functional group analysis of Ecballium elaterium seeds and peels fruits

Solvent extraction effects on phytochemical constituents profiles, antioxidant and antimicrobial activities and functional group analysis of Ecballium elaterium seeds and peels fruits

Adsorption capacity of phenolic compounds onto cellulose and xylan

Flavonoid Content and Antioxidant Properties in Different Extracts of Calluna vulgaris (L.) Flowers

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