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Hot deboning beef with and without electrical stimulation.

A A Taylor¹, B G Shaw, D B Macdougall

¹ARC Meat Research Institute, Langford, Bristol BS18 7DY, Great Britain.

|November 8, 2011

Summary

This summary is machine-generated.

Hot deboning beef reduces evaporative and drip losses compared to cold deboning. Both methods yield similar eating quality and bacterial counts, with hot deboning offering improved color uniformity.

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Area of Science:

Food Science
Meat Science
Postmortem Muscle Processing

Background:

Conventional meat processing involves side chilling followed by cold deboning, which can lead to cold shortening toughness.
Hot deboning offers potential advantages in reducing meat quality losses and improving processing efficiency.

Purpose of the Study:

To compare the effects of two hot deboning methods with conventional cold deboning on beef quality.
To evaluate evaporative losses, drip loss, color uniformity, bacterial contamination, and eating quality.

Main Methods:

Two hot deboning procedures (delay before chilling, electrical stimulation) were compared to conventional cold deboning.
Meat quality parameters including weight loss, drip loss, color, bacterial counts, and sensory attributes were assessed.

Main Results:

Hot deboning resulted in significantly lower evaporative losses (0.6%) compared to cold deboning (1.9%).
Drip loss was reduced with hot deboning, though electrical stimulation had a smaller effect.
Color uniformity in large muscles improved with hot deboning, with electrical stimulation showing a lesser benefit.
No significant differences in bacterial contamination, growth, or eating quality were observed across treatments.

Conclusions:

Hot deboning is an effective method for reducing meat quality losses during beef processing.
Hot deboning, with or without electrical stimulation, maintains meat eating quality and safety comparable to conventional cold deboning.