Issue 4, 2019

Chemical characterization and bioactive properties of a coffee-like beverage prepared from Quercus cerris kernels

Abstract

In the present study, a coffee-like beverage was prepared from Quercus cerris seeds. Seeds presented 60.4% carbohydrates (of which 26.9% is fiber), 6.3% proteins and 4.0% fat. In the coffee-like beverage, the TPC and TFC were 2070.2 mg GAE per L and 285.3 mg CEQ per L, respectively. The IC50 values determined using FRAP and DPPH assays were, respectively, 203.1 mg L−1 and 271.6 mg L−1. Concerning the reactive species scavenging capacity, the extract was more effective against O2˙, HClO and ˙NO (namely, IC50 = 17.24 ± 0.24 μg mL−1, IC50 = 9.25 ± 0.92 μg mL−1 and IC50 = 0.65 ± 0.06 μg mL−1). Qualitative and quantitative analyses by 1D- and 2D-NMR and LC-MS indicated high levels of ellagic acid and gallotannin or ellagitannin derivatives. The optimal range of non-cytotoxic concentrations in Caco-2 and HT29-MTX cell lines was between 0.1 and 1.0 μg mL−1. This is the first study that evaluates the Q. cerris seed extract as a beverage.

Graphical abstract: Chemical characterization and bioactive properties of a coffee-like beverage prepared from Quercus cerris kernels

Article information

Article type
Paper
Submitted
21 Dec 2018
Accepted
05 Mar 2019
First published
25 Mar 2019

Food Funct., 2019,10, 2050-2060

Chemical characterization and bioactive properties of a coffee-like beverage prepared from Quercus cerris kernels

D. Pinto, S. Diaz Franco, A. M. Silva, S. Cupara, M. Koskovac, K. Kojicic, S. Soares, F. Rodrigues, S. Sut, S. Dall'Acqua and M. B. P. P. Oliveira, Food Funct., 2019, 10, 2050 DOI: 10.1039/C8FO02536C

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements