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P.PSH.1275-Prototype Single-sided NMR for non-destructive IMF measurement

Did you know that nuclear magnetic resonance (NMR) has the potential to measure IMF% in uncut carcases at processing line speed?

Publication date: 29 June 2022
Project status: Completed
Livestock species: Lamb
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Summary

Intramuscular fat (IMF) is known to be key component of eating quality. A cuts-based MSA sheepmeat model has been developed but requires measurement of IMF% at processing line speed to enable industry implementation. This project developed, tested and delivered positive proof-of-concept that an NMR configuration suitable to use on uncut lamb carcases has shown potential to provide this measurement.

Objectives

The objectives of this work were to:
1. Design a prototype magnetic sensor that would project a magnetic field into the meat permitting non-destructive measurement of a volume of meat behind the subcutaneous fat cap. The design needed to allow measurement of lamb carcases.
2. Integrate the prototype sensor with a spectrometer and a computer and optimise measurement protocols for IMF.
3. Prove the equipment to the application.
4. Provide consideration to where the equipment might be used in a plant.
The project successfully built the prototype and proved the application.

Key findings

A prototype single-sided NMR sensor has been designed, built and tested for use in non-destructive IMF measurements in lamb. The sensor has been shown to be able to predict IMF. In other work, the system has been proven to accurately measure IMF in beef with correlations for hot and cold applications. Notably, it was found that hot carcases will be easier and more accurate to measure than chilled carcases.

Benefits to industry

Intramuscular fat (IMF) is known to be key component of eating quality. A cuts-based MSA sheepmeat model has been developed but requires measurement of IMF% to enable industry implementation. NMR has shown potential to provide this measurement.

MLA action

MLA is continuing to support the NMR technology developer, inMR Pty Ltd to further develop their NMR sensor.

Future research

This project has delivered proof of concept that a singe-side NMR design that could be used to measure IMF% uncut carcases. Future research should focus on development and testing of pre-commercial prototype in commercial processing conditions.

More information

Project manager: Richard Apps
Contact email: reports@mla.com.au