Black chokeberry (Aronia melanocarpa) polyphenols reveal different antioxidant, antimicrobial and neutrophil-modulating activities

Denev, Petko; Čı́ž, Milan; Kratchanova, Maria; Blazheva, Denica

doi:10.1016/j.foodchem.2019.01.108

Cited by 102 publications

(83 citation statements)

References 30 publications

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“…This may be due to the different sensitivity of microorganisms to different polyphenols. The sensitivity of bacteria to polyphenols depends on the species of bacteria and the structure of polyphenols [ 53 ]. Catechins have a direct antibacterial effect by destroying bacterial cell membrane, inhibiting fatty acid synthesis and inhibiting enzyme activity [ 54 ].…”

Section: Resultsmentioning

confidence: 99%

Investigation of Ultrasonic Treatment on Physicochemical, Structural and Morphological Properties of Sodium Alginate/AgNPs/Apple Polyphenol Films and Its Preservation Effect on Strawberry

Lan

Shama

et al. 2020

Polymers

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An antibacterial and anti-oxidation composite film was prepared by a casting method using sodium alginate (SA) and apple polyphenols (APPs) as the base material and glycerol as the plasticizer. Silver nanoparticles (AgNPs) were deposited by ultrasonic-assisted electrospray method. The degree of influence of the addition ratio of SA and AgNPs and different ultrasonic time on the mechanical properties, barrier properties, optical properties, and hydrophilicity of the composite film was explored. The composite films were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results showed that the SA: AgNPs ratio of 7:3 and the ultrasonic time for 30 min have the best comprehensive performance, and SA/AgNPs/APP films showed the lowest water vapor permeability value of 0.75 × 10−11 g/m·s·Pa. The composite film has good strength and softness, with tensile strength (TS) and elongation at break (E) at 23.94 MPa and 29.18%, respectively. SEM images showed that the surface of the composite film was smooth and the AgNPs’ distribution was uniform. The composite film showed broad antibacterial activity, and the antibacterial activity of Escherichia coli (92.01%) was higher than that of Staphylococcus aureus (91.26%). However, due to the addition of APP, its antioxidant activity can reach 98.39%, which has a synergistic effect on antibacterial activity. For strawberry as a model, the results showed that this composite film can prolong the shelf life of strawberries for about 8 days at 4 °C, effectively maintaining their storage quality. Compared with the commonly used PE(Polyethylene film) film on the market, it has a greater fresh-keeping effect and can be used as an active food packaging material.

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Section: Resultsmentioning

confidence: 99%

Investigation of Ultrasonic Treatment on Physicochemical, Structural and Morphological Properties of Sodium Alginate/AgNPs/Apple Polyphenol Films and Its Preservation Effect on Strawberry

Lan

Shama

et al. 2020

Polymers

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“…This is probably due to the different flavonoid representatives in these samples, since individual flavonoids could differ significantly in their antioxidant activities. For example, depending on the used assay, quercetin reveals 2 to 3-fold-higher antioxidant activity in comparison to its glycoside rutin [49]. Figure 5 compares the mean values of antioxidant activity of the studied groups.…”

Section: Polyphenol and Flavonoid Contents And Antioxidant Activitymentioning

confidence: 99%

Phytochemical composition and antioxidant activity of 63 Balkan pepper (Capsicum annuum L.) accessions

et al. 2019

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In our study, we used the rich biodiversity of peppers in the Balkan region and characterized 63 pepper accessions from five cultivar types (Pungent; Sweet; Pumpkin; Kapia; For powder), in view of their phytochemical composition and antioxidant activity. The obtained results showed high variation in the compositional profiles between studied cultivar groups, as well within individual groups. Based on fresh weight (FW), the most abundant sugar in the studied accessions was glucose (0.36-3.79%), followed by fructose (0.16-2.98%). The accessions from "For powder" group were the richest source of uronic acids-0.77%, followed by accessions from "Pungent" group-0.64%. In four of the five groups, citric acid was the predominant organic acid, whereas only in the "Sweet" group, malic acid was the major representative of organic acid. The highest amount of ascorbic acid (Vitamin C) was found in a genotype CAPS-7, which is in the group of "Pungent" accessions. The polyphenol content varied in a broad range from 42 mg/100 g FW to 266 mg/100 g FW. The differences in the flavonoid content were even more significant reaching 60-fold difference-from 1.0 mg/100 g FW to 64.3 mg/100 g FW. The accessions from the "For powder" group were leaders in regards to their total polyphenol and total flavonoid contents, as well as for their antioxidant activity, measured by ORAC and HORAC assays. This variation in fruit composition might be manipulated via plant breeding to create new pepper varieties with improved nutritional value of their fruits.

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“…From a phytochemical point of view, chokeberry is documented as one of the richest sources of bioactive phenolic compounds, such as anthocyanins, proanthocyanidins and phenolic acids [8,9]. There is strong scientific evidence for the health benefits of chokeberry [10][11][12]. As reported, the positive effect of chokeberry consumption is reflected in its ability to prevent and treat various diseases such as colon cancer [13], high blood pressure [14], and high levels of low-density lipoprotein cholesterol [8], among others.…”

Section: Introductionmentioning

confidence: 99%

Choline Chloride Based Natural Deep Eutectic Solvents as Extraction Media for Extracting Phenolic Compounds from Chokeberry (Aronia melanocarpa)

et al. 2020

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For the isolation of selected phenolic compounds from dried chokeberries, natural deep eutectic solvents (NADESs) were investigated as a green alternative to conventionally used extraction solvents. Four types of NADESs were synthesised, with choline chloride as the hydrogen bond acceptor in combination with different hydrogen bond donors (sugars, organic acid and urea). Ultrasound-assisted extraction was used to improve the extractability of the phenolic compounds and the results were compared to those obtained with 80% methanol as the extraction media. The highest values of total phenols and total flavonoids were found in the extract obtained with choline chloride–fructose NADES (36.15 ± 3.39 mg gallic acid g−1 dry weight (DW) and 4.71 ± 0.33 mg rutin g−1 DW, respectively). The extraction recoveries for the individual phenolic compounds depended strongly on the phenolic compound’s structure, with relative mean values between 70% and 97%.

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Black chokeberry (Aronia melanocarpa) polyphenols reveal different antioxidant, antimicrobial and neutrophil-modulating activities

Cited by 102 publications

References 30 publications

Investigation of Ultrasonic Treatment on Physicochemical, Structural and Morphological Properties of Sodium Alginate/AgNPs/Apple Polyphenol Films and Its Preservation Effect on Strawberry

Investigation of Ultrasonic Treatment on Physicochemical, Structural and Morphological Properties of Sodium Alginate/AgNPs/Apple Polyphenol Films and Its Preservation Effect on Strawberry

Phytochemical composition and antioxidant activity of 63 Balkan pepper (Capsicum annuum L.) accessions

Choline Chloride Based Natural Deep Eutectic Solvents as Extraction Media for Extracting Phenolic Compounds from Chokeberry (Aronia melanocarpa)

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