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December 12, 2025FoodsOpen Access

Evaluation of the Oxidative Process of Chia Seed Oil by Means of ESR Combined with LF-NMR and SAXS

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Authors

YMYun MaNWNan WuCYCheng Yang

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Overview

Assessment reveals oxidation of omega-3 fatty acids in chia seed oil, indicating risks of oil degradation.

Key Points

  • To evaluate the oxidative process of chia seed oil using integrated multi-technique analysis.
  • Applied electron spin resonance (ESR) for radical detection
  • Utilized low-field nuclear magnetic resonance (LF-NMR) for relaxation time measurement
  • Employed small-angle X-ray scattering (SAXS) to assess nanoscale aggregate formation
  • Identified alkyl and peroxyl radicals from unsaturated fatty acids
  • Decreased relaxation times of LF-NMR peaks indicating oil degradation
  • SAXS showed increased intensity and peak shifting confirming formation of aggregates after 20 hours of heating

Cite This Study

Ma et al. (2025) studied this question.

synapsesocial.com/papers/6940190c2d562116f28f6277https://doi.org/10.3390/foods14244280
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