A novel and efficient concentration of pomegranate juice with enhanced antioxidant activity

Genovese, Salvatore; Epifano, Francesco; Palumbo, Lucia; Collevecchio, Chiara; Cardellini, Fabio; Bastianini, Maria; Spogli, Roberto; Fiorito, Serena

doi:10.1016/j.foodchem.2022.132901

Cited by 3 publications

(4 citation statements)

References 34 publications

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“…The total flavonoid content (TFC) was evaluated using the aluminum chloride colorimetric method of Leonard et al and Genovese et al with slight modifications. , The pomegranate peel fermentation samples were mixed with 5% (w/v) NaNO 2 , 10% (w/v) AlCl 3 , and 0.5 M NaOH. The mixture was reacted in the dark for 60 min, and the absorbance was read against the blank DDW at 420 nm by using the UV-visible spectrophotometer.…”

Section: Methodsmentioning

confidence: 99%

Changes in Polyphenols and Antioxidant Properties of Pomegranate Peels Fermented by Urolithin A-Producing Streptococcus thermophilus FUA329

Liu,

Hua,

Chen

et al. 2023

ACS Food Sci. Technol.

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Studies investigating the bioactivity application of Streptococcus thermophilus FUA329, a potential urolithin A-producing strain isolated from human breast milk in a previous study, are insufficient. We here investigated the changes in polyphenols and antioxidant activities of pomegranate peels before and after fermentation by S. thermophilus FUA329. Liquid chromatography–mass spectrometry was used to detect the polyphenols in the fermentation broth. Total phenolic and flavonoid contents were used as indicators of the antioxidant activity of the broth. The results revealed that the total phenolic and flavonoid contents of the fermented pomegranate peels peaked at 48 h (122.54 ± 0.93 mg GAE/100 mL and 26.09 ± 1.11 mg RE/100 mL, respectively), and urolithins, especially urolithin A, produced by the strain during fermentation were considered a new and primary metabolite that enhances the antioxidant ability of the fermentation broth. Thus, as a potential probiotic, S. thermophilus FUA329 can transform ellagic acid in pomegranate peels to urolithin A and improve the antioxidant power of natural foods.

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Section: Methodsmentioning

confidence: 99%

Changes in Polyphenols and Antioxidant Properties of Pomegranate Peels Fermented by Urolithin A-Producing Streptococcus thermophilus FUA329

Liu,

Hua,

Chen

et al. 2023

ACS Food Sci. Technol.

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“…38 During the last three years, lamellar solids have found extensive use in phytochemistry and have been shown to be tremendously efficient for the selective extraction of classes of plant secondary metabolites like flavonoids, catechins, alkaloids, 39 diarylheptanoids, 40 bitter secoiridoids, 41,42 capsaicinoids, 43 oxyprenylated coumarins, 44 tetraterpenes, 45 and anthocyans. 46 48 The pattern of adsorption was practically the same, allowing good to excellent recovery of anthraquinones (all or some) by using the same two sorbents mentioned above in addition to magnesium aluminum azelate, which also displayed good performance. Among the five anthraquinones assayed, rhein (5) was the one adsorbed to the highest extent.…”

Section: Lamellar Solidsmentioning

confidence: 82%

“…LDHs are ideally biocompatible and have several industrial applications to produce a plethora of cosmetic, nutraceutical, and pharmaceutical preparations 38 . During the last three years, lamellar solids have found extensive use in phytochemistry and have been shown to be tremendously efficient for the selective extraction of classes of plant secondary metabolites like flavonoids, catechins, alkaloids, 39 diarylheptanoids, 40 bitter secoiridoids, 41,42 capsaicinoids, 43 oxyprenylated coumarins, 44 tetraterpenes, 45 and anthocyans 46 . Also, in the case of anthraquinones, lamellar solids exhibited the same trend, providing the selective adsorption of these active principles from different extracts of known laxative plants.…”

Section: Lamellar Solidsmentioning

confidence: 99%

Solid‐phase adsorption methodologies of naturally occurring anthraquinones: A review

Palumbo

Fiorito

Epifano

et al. 2023

Phytochemical Analysis

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Introduction: Solid-phase extraction applied to plant matrices is nowadays a wellvalidated technique allowing to concentrate and purify different secondary metabolites. Several classes of phytochemicals have been selectively extracted by this methodology. During the last decade attention has been focused on biologically active anthraquinones from numerous sources like edible, healthy, and medicinal plants. Objectives: The aim of this review is to provide a detailed literature survey of the solid-phase adsorption methodologies for the extraction of natural anthraquinones reported so far and to discuss and propose future directions in this field of research. Materials and Methods: Substructure search was performed in the SciFinder Scholar, PubMed, Medline, and Scopus databases. Results: The first report about application of solid-phase adsorption for the purification of anthraquinones appeared in the literature in 2002. From this date, and in particular during recent years, the most notable examples included the use of chitin-and chitosan-based polymers, of molecularly imprinted polymers, of coated magnetic nanoparticles, of miniaturized matrix solid-phase dispersion, of functionalized resins, of differently structured lamellar solids, and finally of vortex-synchronized matrix solid-phase dispersion. Conclusions:The herein detailed solid-phase adsorption methodologies are powerful tools to selectively extract natural anthraquinones and/or provide anthraquinoneenriched phytopreparations. Nevertheless, many other important methods have been applied to synthetic anthraquinones (e.g., azo dyes). These could be conveniently employed also for natural anthranoids. Studies in this field are discussed in this review article.

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“…This seems to greatly facilitate the adsorption and consequently the interaction with organic compounds, like gentiopicroside ( 1 ) and amarogentin ( 2 ), presumably due to interactions of a lipophilic nature or of the van der Waals type. The present results confirm a trend exhibited by these same materials (especially by Mg Al azelate, entry E) with other classes of natural products like anthraquinones, phenolic acids, flavonoids, purine alkaloids, diarylheptanoids, capsaicinoids, oxyprenylated coumarins, apocarotenoids, and anthocyanins …”

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confidence: 99%

Leaves of Yellow Gentian (Gentiana lutea) as an Alternative Source of Bitter Secoiridoid Glycosides

et al. 2022

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In a search for methods of manufacturing bitter principles from Gentiana lutea, mainly represented by gentiopicroside (1) and amarogentin (2), as an alternative to extraction from the roots of this plant, in this short communication it is shown that the leaves of this plant can be regarded as an additional source of such phytochemicals. Extraction of G. lutea leaves was coupled to solid-phase adsorption by differently structured solids as a separation technology step, providing a selective isolation of both these secondary metabolites in good to excellent yields. Thus, the extraction of bitter secoiridoids can be achieved in an equivalent or improved way rather than processing the roots of G. lutea while preserving the biodiversity of the species.

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A novel and efficient concentration of pomegranate juice with enhanced antioxidant activity

Cited by 3 publications

References 34 publications

Changes in Polyphenols and Antioxidant Properties of Pomegranate Peels Fermented by Urolithin A-Producing Streptococcus thermophilus FUA329

Changes in Polyphenols and Antioxidant Properties of Pomegranate Peels Fermented by Urolithin A-Producing Streptococcus thermophilus FUA329

Solid‐phase adsorption methodologies of naturally occurring anthraquinones: A review

Leaves of Yellow Gentian (Gentiana lutea) as an Alternative Source of Bitter Secoiridoid Glycosides

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