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Review
. 2024 Nov 16:9:100928.
doi: 10.1016/j.crfs.2024.100928. eCollection 2024.

An innovative technique for the extraction and stability of polyphenols using high voltage electrical discharge: HVED-Assisted Extraction of Polyphenols

Leila Abbaspour  1 , Nazila Ghareaghajlou  1 , Mohammad Reza Afshar Mogaddam  2 , Zahra Ghasempour  3
Affiliations
Review

An innovative technique for the extraction and stability of polyphenols using high voltage electrical discharge: HVED-Assisted Extraction of Polyphenols

Leila Abbaspour et al. Curr Res Food Sci. .

Abstract

Polyphenols are the main group of phytochemicals with several biological activities. Due to the adverse effects of conventional solvent extraction methods, innovative extraction techniques have been used as alternatives to overcome these problems. High voltage electric discharge (HVED) is an eco-friendly innovative extraction technique based on the phenomenon of electrical breakdown in water. This technique induces physical and chemical processes, leading to product fragmentation, cellular damage, and liberation of bioactive compounds. HVED treatment can extract polyphenols at lower temperatures and shorter times than the conventional solvent extraction methods. This review summarizes the effect of HVED processing parameters on the recovery and stability of polyphenols from plant sources. Hydroethanolic solutions improve the HVED-assisted extraction of polyphenols compared to water. Moreover, acidic solvents are suitable for the high recovery and protection of polyphenols during electric discharges. This study revealed the efficacy of the HVED technique in extracting polyphenols for their utilization in the food and pharmaceutical industries.

Keywords: Degradation; Dielectric breakdown; HVED; Mechanism; Phenolic compounds.

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Conflict of interest statement

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Figures

Image 1
Graphical abstract
Fig. 1
Fig. 1
The major structure of polyphenol derivatives.
Fig. 2
Fig. 2
Physical and chemical processes during the HVED treatment.
Fig. 3
Fig. 3
Schematics of batch (a), “converged electric field type” continuous (b), “annular gap type” continuous (c), and circulating (d) HVED extraction systems.
Fig. 4
Fig. 4
Schematics of batch (a) and continuous (b) PEF extraction systems.
Fig. 5
Fig. 5
Schematics of probe (a) and bath (b) US extraction systems.
See this image and copyright information in PMC

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