Monitoring Lipid Oxidation in Different Lipid Matrices by Dielectric Spectroscopy Using an Open-Ended Coaxial Probe

IF 1.6 3区生物学 Q3 BIOLOGY

Bioelectromagnetics Pub Date : 2026-06-15 DOI:10.1002/bem.70060

Derya Arslan, Sıddıka Yusra Özkılıç, Emin Ünal, Olcay Altıntaş

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引用次数: 0

Abstract

Lipids undergo oxidative degradation during storage, leading to quality deterioration and potential health risks; therefore, rapid and reliable monitoring methods are needed. This study evaluated dielectric measurements as an alternative approach to determine the oxidative status of different lipid systems (bulk oil, emulsion, and fatty acid methyl esters, FAMEs) during auto-oxidation. Samples were analyzed simultaneously by conventional chemical methods (peroxide value, p-anisidine value, and induction time) and microwave dielectric measurements in the 2–20 GHz frequency range using a coaxial probe. Strong correlations were observed between dielectric parameters and peroxide values as well as induction time in all lipid systems. Good correlations were also found between dielectric data and p-anisidine values in bulk oil and FAMEs, whereas correlations were moderate in emulsions. The results demonstrate that dielectric measurements show strong potential as a rapid, non-destructive, and environmentally friendly approach for assessing lipid oxidation.

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利用开放式同轴探针电介质光谱监测不同脂质基质中的脂质氧化。

脂质在储存过程中发生氧化降解，导致品质恶化和潜在的健康风险；因此，需要快速可靠的监测方法。本研究评估了电介质测量作为确定不同脂质系统（散装油，乳液和脂肪酸甲酯，FAMEs）在自动氧化过程中氧化状态的替代方法。同时采用常规化学方法（过氧化值、对茴香胺值和感应时间）和微波介电测量（2-20 GHz频率范围内同轴探头）对样品进行分析。在所有脂质系统中，介质参数与过氧化值以及诱导时间之间存在很强的相关性。在散装油和FAMEs中介电数据与对茴香胺值之间也发现了良好的相关性，而在乳剂中相关性则是中等的。结果表明，电介质测量显示出强大的潜力，作为一种快速，非破坏性和环境友好的方法来评估脂质氧化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Bioelectromagnetics 生物-生物物理

CiteScore

4.60

自引率

0.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Bioelectromagnetics is published by Wiley-Liss, Inc., for the Bioelectromagnetics Society and is the official journal of the Bioelectromagnetics Society and the European Bioelectromagnetics Association. It is a peer-reviewed, internationally circulated scientific journal that specializes in reporting original data on biological effects and applications of electromagnetic fields that range in frequency from zero hertz (static fields) to the terahertz undulations and visible light. Both experimental and clinical data are of interest to the journal''s readers as are theoretical papers or reviews that offer novel insights into or criticism of contemporary concepts and theories of field-body interactions. The Bioelectromagnetics Society, which sponsors the journal, also welcomes experimental or clinical papers on the domains of sonic and ultrasonic radiation.