Preprint Article Version 1 This version is not peer-reviewed

Edible Alginate- Lecithin Films Enriched with Different Coffee Bean Extracts: Formulation, Non-Cytotoxic, Anti-Inflammatory and Anti-Microbial Properties

Robert Socha
,
Aleksandra Such
* ,
Anna Wisła-Świder
,
Lesław Juszczak
,
Ewelina Nowak
,
Karol Bulski
,
Krzysztof Frączek
,
Ivo Doskocil
,
Barbora Lampova
,
Aneta Koronowicz
*
Version 1 : Received: 1 October 2024 / Approved: 3 October 2024 / Online: 4 October 2024 (08:06:03 CEST)

How to cite: Socha, R.; Such, A.; Wisła-Świder, A.; Juszczak, L.; Nowak, E.; Bulski, K.; Frączek, K.; Doskocil, I.; Lampova, B.; Koronowicz, A. Edible Alginate- Lecithin Films Enriched with Different Coffee Bean Extracts: Formulation, Non-Cytotoxic, Anti-Inflammatory and Anti-Microbial Properties. Preprints 2024, 2024100244. https://doi.org/10.20944/preprints202410.0244.v1 Socha, R.; Such, A.; Wisła-Świder, A.; Juszczak, L.; Nowak, E.; Bulski, K.; Frączek, K.; Doskocil, I.; Lampova, B.; Koronowicz, A. Edible Alginate- Lecithin Films Enriched with Different Coffee Bean Extracts: Formulation, Non-Cytotoxic, Anti-Inflammatory and Anti-Microbial Properties. Preprints 2024, 2024100244. https://doi.org/10.20944/preprints202410.0244.v1

Abstract

The aim of the study was to analyze the functional properties of newly obtained films based on sodium alginate and lecithin with the addition of antioxidant-rich coffee extracts, and to verify their potential as safe edible food packaging materials. In our study we developed alginate-lecithin films enriched with green or roasted coffee bean extracts. The roasting process of coffee beans had a significant impact on the total phenolic content (TPC) in the studied extracts. The highest value of TPC (134.86 mg GAE/L) as well as antioxidant activity (AA) (0.88 mM T/L) was observed for the extract of light roasted coffee beans. Films with addition of medium roasted coffee extracts and baseline films had the highest tensile strength (21.21±0.73 N). The addition of coffee extract improved the barrier properties of films against UV light by a decrease in transmittance values (200-400 nm), regardless of the type of extract added. Studies on Caco-2, HepG2 and BJ cells shown that digestated films were non-cytotoxic materials (100-0,1 ug/mL) and had no negative effect on cell viability, an increase was noted for all cell lines, the highest after 48-hours in dose 1 ug/mL for film with medium-roasted coffee (194.43±38.30) for Caco-2. The tested films at 20% digestate concentrations demonstrated the ability to reduce nitric oxide (NO) production in the RAW264.7 cell line by 25 to 60% compared to the control. Each of the tested films with coffee extracts had growth inhibitory properties towards selected species of bacteria.

Keywords

Biopolymer-based packaging; Sodium alginate; Lecithin; Coffee extracts; Antioxidant activity; Cytotoxicity; Nitric oxide; Antimicrobial activity; Edible packaging

Subject

Chemistry and Materials Science, Food Chemistry

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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