Identification and quantification of anthocyanins in fruits from Neomitranthes obscura (DC.) N. Silveira an endemic specie from Brazil by comparison of chromatographic methodologies

Gouvêa, Ana Cristina Miranda Senna; Melo, Armindo; Santiago, Manuela Cristina P. A.; Peixoto, Fernanda Marques; Freitas, Víctor de; Godoy, Rossana Catiê Bueno de; Ferreira, Isabel

doi:10.1016/j.foodchem.2015.02.086

Cited by 28 publications

(7 citation statements)

References 20 publications

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“…Anthocyanin extraction from grape skin was performed according to Gouvêa et al . () using 10% formic acid in methanol.…”

Section: Methodsmentioning

confidence: 99%

“…Quantification was performed by external standardisation through the construction of analytical curves from Monomeric anthocyanin profile by HPLC-PAD. Anthocyanin extraction from grape skin was performed according to Gouvêa et al (2015) using 10% formic acid in methanol. For the liquid extract, an aliquot was firstly concentrated in Sep-Pak Ò cartridges (Waters, Milford, MA, USA).…”

Section: Phenolic Compounds Profilementioning

confidence: 99%

“…Chromatographic analysis was done according to the methodology described by Gouvêa et al (2015). Quantification was performed by external standardisation through the construction of analytical curve from an isolated standard of malvidin-3-O-glucoside.…”

Section: Phenolic Compounds Profilementioning

confidence: 99%

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Syrah grape skin valorisation using ultrasound‐assisted extraction: Phenolic compounds recovery, antioxidant capacity and phenolic profile

Mazza

Santiago

Nascimento

et al. 2018

Int J of Food Sci Tech

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Summary The influence of ultrasound power (1000–3000 W/L), citric acid concentration (0–3%) and solid:liquid ratio (1:5–1:15) on the phenolic compounds recovery and antioxidant capacity of Syrah grape skin extracts were evaluated. Total phenolic compounds varied from 6485 to 11732 mg gallic acid/100 g and monomeric anthocyanin content from 453 to 685 mg malvidin‐3‐glucoside/100 g. The antioxidant capacity measured by ORAC and ABTS methods ranged from 230 to 516 μmol Trolox/g and from 442 to 939 μmol Trolox/g, respectively. The most suitable conditions chosen for extraction, within the studied ranges, were 3000 W/L of power, 2.5% citric acid and solid:liquid ratio of 1:15. The extraction yield was satisfactory, with a recovery of 59% of the quantified phenolic compounds, with only 3 min of processing. Ultrasound was considered a suitable method as compared to the conventional extraction, improving the extraction of phenolic acids and facilitating their release.

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“…Anthocyanin extraction from grape skin was performed according to Gouvêa et al . () using 10% formic acid in methanol.…”

Section: Methodsmentioning

confidence: 99%

Section: Phenolic Compounds Profilementioning

confidence: 99%

See 1 more Smart Citation

Syrah grape skin valorisation using ultrasound‐assisted extraction: Phenolic compounds recovery, antioxidant capacity and phenolic profile

Mazza

Santiago

Nascimento

et al. 2018

Int J of Food Sci Tech

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“…Cyanidin‐3‐sophoroside from Garcinia mangostana rind effectively reduced activity of TY 26 . Delphinidin‐3‐O‐galactoside (DG), a natural water‐soluble anthocyanidin, is widely distributed in grapes, berries, plants, vegetables, and fruits 27–32 . No study on the interaction between DG and TY has been reported so far.…”

Section: Introductionmentioning

confidence: 99%

“…26 Delphinidin-3-O-galactoside (DG), a natural watersoluble anthocyanidin, is widely distributed in grapes, berries, plants, vegetables, and fruits. [27][28][29][30][31][32] No study on the interaction between DG and TY has been reported so far. The structure of DG is shown in Figure 1.…”

mentioning

confidence: 99%

Spectroscopic studies and molecular docking on the interaction of delphinidin‐3‐O‐galactoside with tyrosinase

Chen

Shi

Liu

et al. 2021

Biotech and App Biochem

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The inhibitory effects of delphinidin-3-O-galactoside (DG) on the activities of tyrosinase (EC 1.14.18.1) (TY) from the edible Agaricus bisporus mushroom were investigated by enzyme kinetics, multispectroscopic methods, and molecular docking. As a result, DG showed strong inhibition on TY with the IC 50 of 34.14 × 10 -6 mol L -1 . The inhibition mode of DG against TY was mixed type with α values of 5.09. The binding constant K a and related thermodynamic parameters at the three different temperatures showed that the fluorescence quenching of TY by DG was static quenching. Synchronous fluorescence, three-dimensional fluorescence, ultraviolet-visible spectroscopy, and circular dichroism spectroscopies confirmed that the conformation or microenvironment of the TY protein were changed after binding with DG. Molecular docking revealed that DG had strong binding affinity to TY through hydrogen bonding and van der Waals force, and the results were consistent with the fluorescence data. Our findings suggested that DG may be potential TY inhibitor.

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Antioxidant Compounds Recovery from Juçara Residue by Thermal Assisted Extraction

Ribeiro

Pereira

Tonon

et al. 2018

Plant Foods Hum Nutr

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This study aimed to recover bioactive compounds by solid-liquid extraction from the agro-industrial residue obtained during juçara fruits processing into pulp. A preliminary study using different solvents (methanol, ethanol and water) indicated ethanol in aqueous solution as the best solvent for antioxidants recovery. Then, a Box-Behnken design was applied considering as independent variables the solvent composition (30-70% ethanol in water), temperature (30-70 °C) and time (30-60 min), in order to evaluate the effects of these factors on antioxidant activity in juçara extract. Results showed that the extracts with higher antioxidant activity were obtained using 30% ethanol at 70 °C for 60 min; measurements included ABTS and DPPH assays, determination of total phenolic content and total monomeric anthocyanins. Furthermore, the effect of pH in antioxidants recovery was evaluated. For this purpose, the 30% ethanol solution was acidified to pH 1 and 2 with HCl. Principal component analysis showed the formation of three distinct groups: one characterized by high bioactive compounds content (pH 1.0), another with superior antioxidant activity (pH 5.75, non-acidified), and finally the group at pH 2 presenting the worst concentrations in the evaluated responses. HPLC analysis showed the presence of cyanidin-3-O-rutinoside and cyanidin-3-O-glucoside in the extracts. Therefore, the conventional solid-liquid extraction using renewable solvent can be successfully applied to recover bioactive compounds from juçara residue, which can be used by different food industries.

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Identification and quantification of anthocyanins in fruits from Neomitranthes obscura (DC.) N. Silveira an endemic specie from Brazil by comparison of chromatographic methodologies

Cited by 28 publications

References 20 publications

Syrah grape skin valorisation using ultrasound‐assisted extraction: Phenolic compounds recovery, antioxidant capacity and phenolic profile

Syrah grape skin valorisation using ultrasound‐assisted extraction: Phenolic compounds recovery, antioxidant capacity and phenolic profile

Spectroscopic studies and molecular docking on the interaction of delphinidin‐3‐O‐galactoside with tyrosinase

Antioxidant Compounds Recovery from Juçara Residue by Thermal Assisted Extraction

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