Influence of fractionation of polyphenols by membrane chromatography on antioxidant, antimicrobial and proliferation-inhibiting effects of red fruit juices

authored by

Magdalena Köpsel, Tina Kostka, Sonja Niesen, Peter Winterhalter, Tuba Esatbeyoglu

Abstract

Interest in fruit juice extracts as nutraceuticals is constantly increasing due to their health-beneficial properties, mainly caused by polyphenols. However, the correlation between the various effects of fruit juice extracts and their individual composition, including anthocyanins and copigments, is unknown. Therefore, in the present study, eight red fruit juice extracts were prepared using XAD-7 column chromatography, followed by fractionation and identification of the different compounds as well as characterization of their health-promoting effects. The fruit juice extract of pomegranate, chokeberry, and cranberry showed the highest antimicrobial potential against food-borne pathogens. The highest antioxidant and cell proliferation-inhibiting potential was also found in the pomegranate extract. It can be assumed that pomegranate extracts, which are rich in copigments, especially hydrolyzable tannins, are suitable natural antioxidants and antimicrobial agents. Pomegranate extracts could be used as nutraceuticals or natural preservatives.

Organisation(s)

Institute of Food Science and Human Nutrition
Molecular Food Chemistry and Food Development

External Organisation(s)

University of Kaiserslautern-Landau (RPTU)
Technische Universität Braunschweig

Type

Article

Journal

Food Chemistry

Volume

463

ISSN

0308-8146

Publication date

15.01.2025

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Analytical Chemistry, Food Science

Electronic version(s)

https://doi.org/10.1016/j.foodchem.2024.141216 (Access: Open)