Ultrasonic spectroscopy allows coagulation to be detected during the real time monitoring of milk subjected to high temperatures
Ultrasonic Scientific announces the addition of a new application for high-resolution ultrasonic spectroscopy (HR-US) - the analysis of heat stability of milk samples.
Heat stability is usually defined as the time needed to cause visible coagulation of milk at a given temperature, and analysis of this complex process is useful for the dairy, food and beverage industries as well as laboratories and academia.
Through the use of HR-US, coagulation can be detected during the real time monitoring of milk subjected to high temperatures.
High precision measurements can be carried out and the monitoring of structural transitions in the sample is made possible.
HR-US also enables the continuous monitoring of changes in the composition and structure of the sample while it is submitted to a high temperature.
This is extremely difficult with other analytical techniques due to both the opacity of milk the high temperature and excessive pressure at which the experiment is carried out.
HR-US uses the two parameters of velocity and attenuation of the ultrasonic waves to access new information about both the chemical dynamics and structure of the sample.
HR-US provides high-resolution measurements and is a non-destructive and versatile technique that does not require any optical activity or transparency of the samples.
In addition, HR-US requires a small sample volume (typically 1ml) and allows the analysis of a broad variety of sample types, chemical reactions and processes.
This includes the measurement of concentrations of components, transition temperatures, temperature intervals and kinetics of sedimentation and creaming as well as the analysis of particle size in suspensions and emulsions.
