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@article{1642207,
author = {Denev, Petko and Číž, Milan and Kratchanova, Maria and Blazheva, Denica},
article_location = {Oxford, UK},
article_number = {JUN 30 2019},
doi = {http://dx.doi.org/10.1016/j.foodchem.2019.01.108},
keywords = {Black chokeberry (Aronia melanocarpa) fruits; Polyphenols; Antioxidant activity; Oxidative burst; Neutrophils; Antimicrobial properties},
language = {eng},
issn = {0308-8146},
journal = {Food Chemistry},
title = {Black chokeberry (Aronia melanocarpa) polyphenols reveal different antioxidant, antimicrobial and neutrophil-modulating activities},
url = {https://www.sciencedirect.com/science/article/pii/S0308814619301761},
volume = {284},
year = {2019}
}
TY - JOUR
ID - 1642207
AU - Denev, Petko - Číž, Milan - Kratchanova, Maria - Blazheva, Denica
PY - 2019
TI - Black chokeberry (Aronia melanocarpa) polyphenols reveal different antioxidant, antimicrobial and neutrophil-modulating activities
JF - Food Chemistry
VL - 284
IS - JUN 30 2019
SP - 108-117
EP - 108-117
PB - Elsevier Science
SN - 03088146
KW - Black chokeberry (Aronia melanocarpa) fruits
KW - Polyphenols
KW - Antioxidant activity
KW - Oxidative burst
KW - Neutrophils
KW - Antimicrobial properties
UR - https://www.sciencedirect.com/science/article/pii/S0308814619301761
L2 - https://www.sciencedirect.com/science/article/pii/S0308814619301761
N2 - The current study reports data on antioxidant, antimicrobial and neutrophil-modulating activities of different polyphenolic preparations from black chokeberry fruits: crude extract, purified extract standardized to 20% and 40% anthocyanins, and proanthocyanidins; as well as pure compounds (chlorogenic acid, cyanidin-3-O-galactoside, epicatechin, rutin and quercetin) present in black chokeberries. Minor phenolic components - quercetin and epicatechin showed the highest ORAC and TRAP antioxidant activity. Given the amount of individual phenolics in the fruits, proanthocyanidins are the major contributor to antioxidant activity of fresh black chokeberries. Studied polyphenols and preparations had no effect on the spontaneous chemiluminescence (CL) of human neutrophils and only mild effect on PMA-activated CL. Greater effects were observed on OZP-activated CL, being statistically significant (p < 0.05) for quercetin and rutin. The antimicrobial activity test against 10 pathogens showed that black chokeberry proanthocyanidins are the most potent antimicrobial agents in the fruit.
ER -
DENEV, Petko, Milan ČÍŽ, Maria KRATCHANOVA a Denica BLAZHEVA. Black chokeberry (Aronia melanocarpa) polyphenols reveal different antioxidant, antimicrobial and neutrophil-modulating activities. \textit{Food Chemistry}. Oxford, UK: Elsevier Science, 2019, roč.~284, JUN 30 2019, s.~108-117. ISSN~0308-8146. Dostupné z: https://dx.doi.org/10.1016/j.foodchem.2019.01.108.
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