Ultrasonic determination of chicken composition

Area of Science:

• Food Science
• Materials Science
• Acoustics

Background:

• Accurate characterization of meat composition is crucial for quality control and product development.
• Traditional methods for determining meat composition can be time-consuming and destructive.

Purpose of the Study:

• To develop and validate an ultrasonic technique for measuring chicken meat composition.
• To establish relationships between ultrasonic velocity and key compositional parameters like solids-nonfat and fat content.

Main Methods:

• Developed chicken analogues with varying compositions (dried chicken powder, corn oil, water).
• Measured ultrasonic velocity across a temperature range (5-35°C) using an ultrasonic spectrometer.
• Developed semi-empirical equations correlating ultrasonic velocity with composition.

Main Results:

• Ultrasonic velocity increased with solids-nonfat (SNF) content.
• Fat content dependence varied with temperature: increasing at lower temps, decreasing at higher temps, and independent around 15°C.
• Predicted compositions from ultrasonic measurements showed high agreement with standard methods (r² > 0.97).

Conclusions:

• Ultrasonic velocity is a reliable indicator of chicken meat composition, including solids-nonfat and fat content.
• The developed technique is simple, fast, nondestructive, and accurate, offering significant potential for the food industry.