Linseed Oil Oxidation Monitoring via NMR Relaxation Times

A study by Maysa Teixeira Resende of Bakke Graduate University demonstrates the use of 1H LF-NMR relaxation time (T2) measurements to track the oxidative aging of Omega-3 PUFA-rich linseed oil. The data likely includes T2 relaxation decay profiles and correlates them with peroxide value, viscosity, self-diffusion, and fatty acid profiles from GC-MS analysis of samples subjected to thermal stress at 25, 40, 60, 80, 100, and 120°C for 168 hours.

Use Cases

• Modeling oxidative aging kinetics based on NMR relaxation time decay profiles.
• Correlating chemical degradation products (hydroperoxides, aldehydes) with physical property changes (viscosity, self-diffusion).
• Developing rapid quality assessment markers for polyunsaturated fatty acid-rich oils based on alkyl tail segment mobility.

Strengths

• Correlates multiple analytical techniques (LF-NMR, high-field NMR, GC-MS, viscosity) on the same samples.
• Experimental design includes six distinct temperature points (25-120°C) over a 168-hour period.

Limitations

• Row count and specific column definitions are unknown, limiting suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

Bakke Graduate University

Collection Method

Laboratory measurements using 1H LF-NMR, high-field NMR, GC-MS, and physicochemical tests on linseed oil samples under controlled thermal oxidative stress.