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Title: Intensification of Polyphenols Extraction from Eryngium creticum Leaves Using Ired-Irrad® and Evaluation of Antibiofilm and Antibacterial Activities
Authors: Hammoud, Mariam
Chokr, Ali
Rajha, Hiba N
Safi, Carl
Walsem, Martijn van
Broek, Lambertus A M van den
Debs, Esperance 
Maroun, Richard G
Louka, Nicolas
Rammal, Hassan
Affiliations: Faculty of Arts and Sciences 
Keywords: Eryngium creticum
Antibacterial activity
Antibiofilm activity
Issue Date: 2022-10-01
Publisher: MDPI
Part of: Plants
Volume: 11
Issue: 2458
Start page: 1
End page: 16
(1) Background: Eryngium creticum is a plant medicinally valued, and used in pharmacopeia to treat various diseases. No previous studies have been reported on E. creticum leaf extracts using an IR-assisted technique; thus, this study aimed to intensify polyphenol extraction using Ired-Irrad®, comparing it to the conventional water bath (WB) method. (2) Methods: Optimization of polyphenol extraction from E. creticum leaves was conducted using Response Surface Methodology. Ired-Irrad® was used and compared to the WB method. The biological activities (antiradical, antioxidant, antibacterial, and antibiofilm) of both extracts were assessed. UHPLC analysis was performed to analyze the phytochemical profile of both extracts. (3) Results: Under optimal conditions, IR improved the polyphenol extraction yield by 1.7 times, while lowering ethanol consumption by 1.5 times. Regarding the antibacterial activity, both WB and IR E. creticum leaf extracts exhibited the highest antibacterial activity against Staphylococcus epidermidis. The maximum biofilm prevention capacity was also noticed against S. epidermidis. UHPLC-MS analysis quantified two major phenolic compounds in both extracts: rutin and sinapic acid. (4) Conclusions: Ired-Irrad® technology proved to be an effective technique in intensifying polyphenol recovery, while preserving their quantity and quality.
ISSN: 2223-7747
DOI: 10.3390/plants11192458
Open URL: Link to full text
Type: Journal Article
Appears in Collections:Department of Biology

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